1
|
Kelly NE. Spatial distribution and risk assessment of microplastics in surface waters of the St. Lawrence Estuary. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174324. [PMID: 38960195 DOI: 10.1016/j.scitotenv.2024.174324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/31/2024] [Accepted: 06/25/2024] [Indexed: 07/05/2024]
Abstract
Development of effective prevention and mitigation strategies for marine plastic pollution requires a better understanding of the pathways and transport mechanisms of plastic waste. Yet the role of estuaries as a key interface between riverine inputs of plastic pollution and delivery to receiving marine environments remains poorly understood. This study quantified the concentration and distribution of microplastics (MPs) (50-3200 μm) in surface waters of the St. Lawrence Estuary (SLE) in eastern Canada. Microplastics were identified and enumerated based on particle morphology, colour, and size class. Fourier Transform Infrared (FTIR) spectroscopy was used on a subset of particles to identify polymers. Generalized linear models (Gamma distribution with log-link) examined the relationship between MP concentrations and oceanographic variables and anthropogenic sources. Finally, a risk assessment model, using MP concentrations and chemical hazards based on polymer types, estimated the MP pollution risk to ecosystem health. Mean surface MP concentration in the SLE was 120 ± 42 SD particles m-3; MP concentrations were highest in the fluvial section and lowest in the Northwest Gulf of St. Lawrence. However, MP concentrations exhibited high heterogeneity along the length and width of the SLE. Microplastics were elevated at stations located closer to wastewater treatment plant outflows and downstream sites with more agricultural land. Black, blue, and transparent fibers and fragments ≤250 μm were most commonly encountered. Predominant polymer types included polyethylene terephthalate, regenerated cellulose, polyethylene, and alkyds. While the overall risk to ecosystem health in the entire estuary was considered low, several stations, particularly near urban centres were at high or very high risk. This study provides new insights into the quantification and distribution of MPs and first estimates of the risk of MP pollution to ecosystem health in one of the world's largest estuaries.
Collapse
Affiliation(s)
- Noreen E Kelly
- Fisheries and Oceans Canada, 1 Challenger Drive, Dartmouth, NS, Canada.
| |
Collapse
|
2
|
Feng S, Lu H, Xue Y, Liu Y, Li H, Zhou C, Zhang X, Yan P. Occurrence of microplastics in the headwaters of Yellow River on the Tibetan Plateau: Source analysis and ecological risk assessment. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135327. [PMID: 39111180 DOI: 10.1016/j.jhazmat.2024.135327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 07/18/2024] [Accepted: 07/24/2024] [Indexed: 08/17/2024]
Abstract
The widespread occurrence of Microplastics (MPs) has aroused increasing concerns. However, the fate of MPs in remote areas remains poorly understood. Here, the spatial distribution, potential sources, and environmental risks of MPs were analyzed in the headstream of the Yellow River on the eastern Tibetan Plateau. The average MP abundances are (464.3 ± 200.9) items /m3 and (63.6 ± 34.7) items /kg in the water and sediment, respectively, with both majority polymer is polypropylene (PP) (water: 28.7 %; sediment: 25.2 %). The structural equation modeling and conditional fragmentation model were used in this study to analyze the source and impact factors of riverine MPs. According to the models, MPs were influenced by water quality parameters and anthropogenic activities. Furthermore, the source analysis through MP characteristics and statistical analysis showed that the main sources of MPs include domestic sewage, plastic waste disposal, and the use of agricultural plastic film. Moreover, the differences in MP sources along the river were distinguished by the conditional fragmentation model. The potential ecological risks of MPs were evaluated, resulting in relatively medium-to-low levels. Our findings will serve as important references for improving the understanding of the plateau environmental impacts of MP distribution in the headwaters of large rivers.
Collapse
Affiliation(s)
- Sansan Feng
- Key Laboratory of Water Cycle and Related Land Surface Process, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China
| | - Hongwei Lu
- Key Laboratory of Water Cycle and Related Land Surface Process, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China.
| | - Yuxuan Xue
- Key Laboratory of Water Cycle and Related Land Surface Process, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China
| | - Yunlong Liu
- State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
| | - Hengchen Li
- Key Laboratory of Water Cycle and Related Land Surface Process, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China
| | - Chaodong Zhou
- Key Laboratory of Water Cycle and Related Land Surface Process, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China
| | - Xiaohan Zhang
- Key Laboratory of Water Cycle and Related Land Surface Process, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China
| | - Pengdong Yan
- State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
| |
Collapse
|
3
|
Torresi M, Giménez J, Navarro J, Coll M, García-Barcelona S, Macías D, Borrell A, Garcia-Garin O. Microplastic characterization in the stomachs of swordfish (Xiphias gladius) from the western Mediterranean Sea. MARINE POLLUTION BULLETIN 2024; 206:116767. [PMID: 39068710 DOI: 10.1016/j.marpolbul.2024.116767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 07/22/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
In this study, we aimed to quantify the presence of microplastics (MPs) in the stomachs of large pelagic fish (swordfish, Xiphias gladius, Linnaeus, 1758) sampled in the western Mediterranean Sea, and assess temporal trends (2011-2012 vs. 2017-2019) in MP ingestion. MPs were extracted from stomachs and characterized by μ-Fourier transform infrared spectroscopy. Results highlighted the ingestion of MP in 39 out of 49 stomachs analysed. Ingested MPs consisted mostly of small (<1 mm) fibers (88.6 %, mean ± standard deviation = 2.5 ± 6.1 particles per stomach), with a greater frequency of occurrence (FO) in the second period (FO = 90 %, 3.3 ± 8.0 particles per stomach). The predominant colours were purple, black and blue, and polyethylene terephthalate was the most frequently detected polymer. These results are crucial for the development of management actions aimed at the conservation of swordfish in the Mediterranean Sea and the prevention of health risks to humans.
Collapse
Affiliation(s)
- Marco Torresi
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Spain
| | - Joan Giménez
- Instituto Español de Oceanografía (IEO-CSIC) Centro Oceanográfico de Málaga, Fuengirola, Spain
| | - Joan Navarro
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Spain
| | - Marta Coll
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Spain; Ecopath International Initiative (EII), Barcelona, Spain
| | | | - David Macías
- Instituto Español de Oceanografía (IEO-CSIC) Centro Oceanográfico de Málaga, Fuengirola, Spain
| | - Asunción Borrell
- Department of Evolutionary Biology, Ecology and Environmental Sciences, and Biodiversity Research Institute (IRBio), Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Odei Garcia-Garin
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Spain; Department of Evolutionary Biology, Ecology and Environmental Sciences, and Biodiversity Research Institute (IRBio), Faculty of Biology, University of Barcelona, Barcelona, Spain.
| |
Collapse
|
4
|
Zimmer-Correa M, Carneiro Proietti M, Couto Di Tullio J, Rodrigues LDS, Quadro Oreste E, Kessler F, Bassoi M, Botta S. Plastic ingestion by odontocetes from the Western South Atlantic: A particular concern to a threatened species. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 360:124659. [PMID: 39097262 DOI: 10.1016/j.envpol.2024.124659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 06/29/2024] [Accepted: 08/01/2024] [Indexed: 08/05/2024]
Abstract
The ingestion of debris by marine fauna is a growing threat to biodiversity. This study aimed to evaluate and characterize litter ingestion by odontocetes from the Western South Atlantic. Between 2018 and 2022, 154 stomachs from six species were collected from stranded individuals and incidental captures. Stomach contents were analyzed with the naked eye and items of anthropic origin found were counted and physically/chemically characterized. Generalized Linear Models were used to evaluate the influence of biological factors on the presence/absence of litter in stomachs, and for Pontoporia blainvillei only, the influence of these factors on the number of ingested items was also tested; additionally, a temporal analysis of ingestion was done for this species (1994-2022). A total of 156 items, mainly macro-sized plastics made of polypropylene, were found in 52 stomachs of four species: Tursiops spp. (FO% = 3.3%), Steno bredanensis (10.0%), Delphinus delphis (28.6%) and P. blainvillei (47.5%). The presence/absence of litter was explained only by species (χ2 = 28.29 and p < 0.001). For P. blainvillei, a threatened species in the region, the number of items was positively influenced by individual size (χ2 = 6.01 and p = 0.01) and sex (χ2 = 7.93 and p = 0.005). There was an increase in plastic ingestion by this species over the years (χ2 = 121.6 and p < 0.001) and it was estimated that 75% of P. blainvillei stomachs will contain plastic by 2040. The ingestion of litter by odontocetes from the Western South Atlantic was confirmed and the potential risks posed by this type of pollution were evidenced, especially since these species also face other anthropic pressures. These results further demonstrate the increasing threat of litter in the ocean and highlight the importance of circularity of plastics and proper waste management.
Collapse
Affiliation(s)
- Marina Zimmer-Correa
- Programa de Pós-Graduação em Oceanografia Biológica, Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil; Laboratório de Ecologia e Conservação da Megafauna Marinha (ECOMEGA), Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil.
| | - Maíra Carneiro Proietti
- Programa de Pós-Graduação em Oceanografia Biológica, Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil; Projeto Lixo Marinho, Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil; The Ocean Cleanup, Rotterdam, the Netherlands
| | - Juliana Couto Di Tullio
- Programa de Pós-Graduação em Oceanografia Biológica, Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil; Laboratório de Ecologia e Conservação da Megafauna Marinha (ECOMEGA), Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Lucas Dos S Rodrigues
- Programa de Pós-Graduação em Oceanografia Biológica, Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil; Laboratório de Dinâmica Populacional Pesqueira, Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil; Departament d'Estadística i Investigació Operativa, Universitat de València, Valencia, Spain
| | - Eliezer Quadro Oreste
- Laboratório de Físico-Química Aplicada e Tecnológica (LAFQAT), Escola de Química e Alimentos, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Felipe Kessler
- Laboratório de Físico-Química Aplicada e Tecnológica (LAFQAT), Escola de Química e Alimentos, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| | - Manuela Bassoi
- Laboratório de Ecologia e Conservação da Megafauna Marinha (ECOMEGA), Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil; Laboratório de Bioacústica (LaB), Centro de Biociências, Universidade Federal do Rio Grande do Norte - UFRN, Natal, Brazil
| | - Silvina Botta
- Programa de Pós-Graduação em Oceanografia Biológica, Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil; Laboratório de Ecologia e Conservação da Megafauna Marinha (ECOMEGA), Instituto de Oceanografia, Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
| |
Collapse
|
5
|
N S M, K V A. Microplastics contamination and risk assessment in bivalves of economic importance from Beypore estuary, Southern India. ENVIRONMENTAL RESEARCH 2024; 261:119711. [PMID: 39096987 DOI: 10.1016/j.envres.2024.119711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/23/2024] [Accepted: 07/29/2024] [Indexed: 08/05/2024]
Abstract
Microplastics (MPs) are ubiquitous pollutant causing severe threat to the biotic and abiotic components of the coastal ecosystem. Accumulation of MPs in the commercially important bivalves Viz. Perna viridis (green mussel) and Meretrix casta (clam) collected from four different locations of Beypore estuary, Southern India was studied. The study focused on the accumulation, characteristics, diversity indices, and human health risk assessment of MPs in the bivalves of Beypore estuary. A total of 120 bivalve samples were examined for the MPs contamination. Whole tissue digestion method using 10% KOH was employed to retrieve the MP content. The results indicate that the average abundance of MPs in Perna viridis is 2.38 ± 1.56 MPs/individual and 0.15 ± 0.09 MP/g/wet weight whereas, for Meretrix casta it is 1.35 ± 1.02 MPs/individual and 0.3 ± 0.27 MP/g/wet weight. Spearman's correlation reveals that there is no significant correlation observed between the abundance of MPs in the bivalves with their morphomertric parameters. The characteristics of MPs in the bivalves are dominated by translucent colored particles (88.95%) in the form of films (45.13%) and fibers (33.6%) having a size ranged between 300 and 1000 μm (51.13%) and composed of polyethylene (54.5%) and polypropylene (20%) polymers. The microplastic index in Meretrix casta ranged between 0.02 and 0.07 whereas for Perna viridis it ranged between 0.08 and 0.10 indicating minimal to moderate MPs contamination. The microplastics diversity integrated index ranged between 0.67 and 0.69 for Meretrix casta whereas, for Perna viridis the value ranged between 0.34 and 0.60 suggests moderate diversity of MPs derived from multiple sources. Based on polymer hazard index, the potential health risk was assessed with a hazard level ranged between II and IV suggesting significant health risk. Systematic monitoring of MPs at river basin scale along with stringent plastic waste management is required to minimize plastic pollution load into the river system.
Collapse
Affiliation(s)
- Magesh N S
- Centre for Water Resources Development and Management, Kozhikode, Kerala, 673 571, India.
| | - Ajith K V
- Centre for Water Resources Development and Management, Kozhikode, Kerala, 673 571, India.
| |
Collapse
|
6
|
Yin LZ, Luo XQ, Li JL, Liu Z, Duan L, Deng QQ, Chen C, Tang S, Li WJ, Wang P. Deciphering the pathogenic risks of microplastics as emerging particulate organic matter in aquatic ecosystem. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134728. [PMID: 38805824 DOI: 10.1016/j.jhazmat.2024.134728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/07/2024] [Accepted: 05/23/2024] [Indexed: 05/30/2024]
Abstract
Microplastics are accumulating rapidly in aquatic ecosystems, providing habitats for pathogens and vectors for antibiotic resistance genes (ARGs), potentially increasing pathogenic risks. However, few studies have considered microplastics as particulate organic matter (POM) to elucidate their pathogenic risks and underlying mechanisms. Here, we performed microcosm experiments with microplastics and natural POM (leaves, algae, soil), thoroughly investigating their distinct effects on the community compositions, functional profiles, opportunistic pathogens, and ARGs in Particle-Associated (PA) and Free-Living (FL) bacterial communities. We found that both microplastics and leaves have comparable impacts on microbial community structures and functions, enriching opportunistic pathogens and ARGs, which may pose potential environmental risks. These effects are likely driven by their influences on water properties, including dissolved organic carbon, nitrate, DO, and pH. However, microplastics uniquely promoted pathogens as keystone species and further amplified their capacity as hosts for ARGs, potentially posing a higher pathogenic risk than natural POM. Our research also emphasized the importance of considering both PA and FL bacteria when assessing microplastic impacts, as they exhibited different responses. Overall, our study elucidates the role and underlying mechanism of microplastics as an emerging POM in intensifying pathogenic risks of aquatic ecosystems in comparison with conventional natural POM.
Collapse
Affiliation(s)
- Ling-Zi Yin
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Ecology & School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; Bioscience and Biomedical Engineering Thrust, Systems Hub, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, Guangdong, China; Division of Emerging Interdisciplinary Areas, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Xiao-Qing Luo
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Ecology & School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jia-Ling Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Ecology & School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zetao Liu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Ecology & School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Li Duan
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Ecology & School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Qi-Qi Deng
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Ecology & School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Chen Chen
- State Environmental Protection Key Laboratory of Urban Ecological Environment Simulation and Protection, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Guangzhou 510655, China
| | - Shaojun Tang
- Bioscience and Biomedical Engineering Thrust, Systems Hub, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, Guangdong, China; Division of Emerging Interdisciplinary Areas, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Ecology & School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Pandeng Wang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Ecology & School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.
| |
Collapse
|
7
|
Cao J, Liang H, Yang J, Zhu Z, Deng J, Li X, Elimelech M, Lu X. Depolymerization mechanisms and closed-loop assessment in polyester waste recycling. Nat Commun 2024; 15:6266. [PMID: 39048542 PMCID: PMC11269573 DOI: 10.1038/s41467-024-50702-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024] Open
Abstract
Alcoholysis of poly(ethylene terephthalate) (PET) waste to produce monomers, including methanolysis to yield dimethyl terephthalate (DMT) and glycolysis to generate bis-2-hydroxyethyl terephthalate (BHET), is a promising strategy in PET waste management. Here, we introduce an efficient PET-alcoholysis approach utilizing an oxygen-vacancy (Vo)-rich catalyst under air, achieving space time yield (STY) of 505.2 gDMT·gcat-1·h-1 and 957.1 gBHET·gcat-1·h-1, these results represent 51-fold and 28-fold performance enhancements compared to reactions conducted under N2. In situ spectroscopy, in combination with density functional theory calculations, elucidates the reaction pathways of PET depolymerization. The process involves O2-assisted activation of CH3OH to form CH3OH* and OOH* species at Vo-Zn2+-O-Fe3+ sites, highlighting the critical role of Vo-Zn2+-O-Fe3+ sites in ester bond activation and C-O bond cleavage. Moreover, a life cycle assessment demonstrates the viability of our approach in closed-loop recycling, achieving 56.0% energy savings and 44.5% reduction in greenhouse-gas emissions. Notably, utilizing PET textile scrap further leads to 58.4% reduction in initial total operating costs. This research offers a sustainable solution to the challenge of PET waste accumulation.
Collapse
Affiliation(s)
- Jingjing Cao
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
| | - Huaxing Liang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
| | - Jie Yang
- CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Applied Chemistry, University of Science and Technology of China, Hefei, China
| | - Zhiyang Zhu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
| | - Jin Deng
- CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Applied Chemistry, University of Science and Technology of China, Hefei, China.
| | - Xiaodong Li
- Max Planck Institute of Microstructure Physics, Weinberg 2, Halle, Germany.
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA.
| | - Xinglin Lu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China.
| |
Collapse
|
8
|
Ding J, He D, Du P, Wu J, Hu Q, Chen Q, Jiao X. Design Photocatalysts to Boost Carrier Dynamics in Plastics Photoconversion into Fuels. ACS APPLIED MATERIALS & INTERFACES 2024; 16:35865-35873. [PMID: 38970473 DOI: 10.1021/acsami.4c07664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/08/2024]
Abstract
Solar-driven plastics conversion into valuable fuels has attracted broad attention in recent years, which has enormous potential for plastics recycling in the future. However, it usually encounters low conversion efficiency, where one of the reasons is attributed to the poor carrier dynamics in the photocatalytic process. In this Perspective, we critically review the developed strategies, involving defect engineering, doping engineering, heterojunction engineering, and composite construction, for boosted carrier separation efficiency. In addition, we provide an outlook for more potential strategies to engineer catalysts for promoted carrier dynamics. Finally, we also propose prospects for the future research direction of plastics photoconversion into fuels.
Collapse
Affiliation(s)
- Jinyu Ding
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Dongpo He
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Peijin Du
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Jiacong Wu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Qinyuan Hu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Qingxia Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Xingchen Jiao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| |
Collapse
|
9
|
Xie M, Lv M, Zhao Z, Li L, Jiang H, Yu Y, Zhang X, Liu P, Chen J. New insights of bacterial and eukaryotic phenotypes on the plastics collected from the typical natural habitat of the endangered crocodile lizard. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116541. [PMID: 38848637 DOI: 10.1016/j.ecoenv.2024.116541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/09/2024]
Abstract
Although accumulating evidence indicates that endangered animals suffer from plastic pollution, this has been largely overlooked. Here, we explored the bacteria and eukaryotes living in the plastics gathered from the natural habitat of the highly endangered crocodile lizard. The results demonstrated that the bacterial and eukaryotic communities on plastics formed a unique ecosystem that exhibited lower diversity than those in the surrounding water and soil. However, microbes displayed a more complex and stable network on plastic than that in water or soil, implying unique mechanisms of stabilization. These mechanisms enhanced their resilience and contributed to the provision of stable ecological services. Eukaryotes formed a simpler and smaller network than bacteria, indicating different survival strategies. The bacteria residing on the plastics played a significant role in carbon transformation and sequestration, which likely impacted carbon cycling in the habitat. Furthermore, microbial exchange between plastics and the crocodile lizard was observed, suggesting that plastisphere serves as a mobile gene bank for the exchange of information, including potentially harmful substances. Overall, microbes on plastic appear to significantly impact the crocodile lizard and its natural habitat via various pathways. These results provided novel insights into risks evaluation of plastic pollution and valuable guidance for government efforts in plastic pollutant control in nature reserves.
Collapse
Affiliation(s)
- Mujiao Xie
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Mei Lv
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Zhiwen Zhao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Linmiao Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Haiying Jiang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Yepin Yu
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Xiujuan Zhang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Ping Liu
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Jinping Chen
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China.
| |
Collapse
|
10
|
Li A, Wu L, Cui H, Song Y, Zhang X, Li X. Unlocking a Sustainable Future for Plastics: A Chemical-Enzymatic Pathway for Efficient Conversion of Mixed Waste to MHET and Energy-Saving PET Recycling. CHEMSUSCHEM 2024; 17:e202301612. [PMID: 38385577 DOI: 10.1002/cssc.202301612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/21/2024] [Accepted: 02/21/2024] [Indexed: 02/23/2024]
Abstract
The heterogeneous monomers obtained from plastic waste degradation are unfavorable for PET recondensation and high-value derivative synthesis. Herein, we developed an efficient chemical-enzymatic approach to convert mixed plastic wastes into homogeneous mono-2-hydroxyethyl terephthalate (MHET) without downstream purification, benefiting from three discovered BHETases (KbEst, KbHyd, and BrevEst) in nature. Towards the mixed plastic waste, integrating the chemical K2CO3-driven glycolysis process with the BHETase depolymerization technique resulted in an MHET yield of up to 98.26 % in 40 h. Remarkably, BrevEst accomplished the highest BHET hydrolysis (~87 % efficiency in 12 h) for yielding analytical-grade MHET compared to seven state-of-the-art PET hydrolases (18 %-40 %). In an investigation combining quantum theoretical computations and experimental validations, we established a MHET-initiated PET repolymerization pathway. This shortcut approach with MHET promises to strengthen the valorization of mixed plastics, offering a substantially more efficient and energy-saving route for PET recycling.
Collapse
Affiliation(s)
- Anni Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210009, People's Republic of China
| | - Luxuan Wu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210009, People's Republic of China
| | - Haiyang Cui
- School of Life Sciences, Nanjing Normal University, Nanjing, People's Republic of China
| | - Yibo Song
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210009, People's Republic of China
| | - Xing Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210009, People's Republic of China
| | - Xiujuan Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210009, People's Republic of China
| |
Collapse
|
11
|
Chen H, Huang D, Zhou W, Deng R, Yin L, Xiao R, Li S, Li F, Lei Y. Hotspots lurking underwater: Insights into the contamination characteristics, environmental fates and impacts on biogeochemical cycling of microplastics in freshwater sediments. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135132. [PMID: 39002483 DOI: 10.1016/j.jhazmat.2024.135132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 06/19/2024] [Accepted: 07/05/2024] [Indexed: 07/15/2024]
Abstract
The widespread presence of microplastics (MPs) in aquatic environments has become a significant concern, with freshwater sediments acting as terminal sinks, rapidly picking up these emerging anthropogenic particles. However, the accumulation, transport, degradation and biochemical impacts of MPs in freshwater sediments remain unresolved issues compared to other environmental compartments. Therefore, this paper systematically revealed the spatial distribution and characterization information of MPs in freshwater (rivers, lakes, and estuaries) sediments, in which small-size (<1 mm), fibers, transparent, polyethylene (PE), and polypropylene (PP) predominate, and the average abundance of MPs in river sediments displayed significant heterogeneity compared to other matrices. Next, the transport kinetics and drivers of MPs in sediments are summarized, MPs transport is controlled by the particle diversity and surrounding environmental variability, leading to different migration behaviors and transport efficiencies. Also emphasized the spatio-temporal evolution of MPs degradation processes and biodegradation mechanisms in sediments, different microorganisms can depolymerize high molecular weight polymers into low molecular weight biodegradation by-products via secreting hydrolytic enzymes or redox enzymes. Finally, discussed the ecological impacts of MPs on microbial-nutrient coupling in sediments, MPs can interfere with the ecological balance of microbially mediated nutrient cycling by altering community networks and structures, enzyme activities, and nutrient-related functional gene expressions. This work aims to elucidate the plasticity characteristics, fate processes, and potential ecological impact mechanisms of MPs in freshwater sediments, facilitating a better understanding of environmental risks of MPs in freshwater sediments.
Collapse
Affiliation(s)
- Haojie Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; Greater Bay Area Institute for Innovation, Hunan University, Guangzhou 511300, Guangdong, PR China.
| | - Wei Zhou
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Rui Deng
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, Anhui 230009, PR China
| | - Lingshi Yin
- College of Water Resources & Civil Engineering, Hunan Agricultural University, Changsha 410128, PR China
| | - Ruihao Xiao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Sai Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Fei Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Yang Lei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| |
Collapse
|
12
|
Chen L, Bi T, Lizundia E, Liu A, Qi L, Ma Y, Huang J, Lu Z, Yu L, Deng H, Chen C. Biomass waste-assisted micro(nano)plastics capture, utilization, and storage for sustainable water remediation. Innovation (N Y) 2024; 5:100655. [PMID: 39040688 PMCID: PMC11260858 DOI: 10.1016/j.xinn.2024.100655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 06/03/2024] [Indexed: 07/24/2024] Open
Abstract
Micro(nano)plastics (MNPs) have become a significant environmental concern due to their widespread presence in the biosphere and potential harm to ecosystems and human health. Here, we propose for the first time a MNPs capture, utilization, and storage (PCUS) concept to achieve MNPs remediation from water while meeting economically productive upcycling and environmentally sustainable plastic waste management. A highly efficient capturing material derived from surface-modified woody biomass waste (M-Basswood) is developed to remove a broad spectrum of multidimensional and compositional MNPs from water. The M-Basswood delivered a high and stable capture efficiency of >99.1% at different pH or salinity levels. This exceptional capture performance is driven by multiscale interactions between M-Basswood and MNPs, involving physical trapping, strong electrostatic attractions, and triggered MNPs cluster-like aggregation sedimentation. Additionally, the in vivo biodistribution of MNPs shows low ingestion and accumulation of MNPs in the mice organs. After MNPs remediation from water, the M-Basswood, together with captured MNPs, is further processed into a high-performance composite board product where MNPs serve as the glue for utilization and storage. Furthermore, the life cycle assessment (LCA) and techno-economic analysis (TEA) results demonstrate the environmental friendliness and economic viability of our proposed full-chain PCUS strategy, promising to drive positive change in plastic pollution and foster a circular economy.
Collapse
Affiliation(s)
- Lu Chen
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Tingting Bi
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Erlantz Lizundia
- Life Cycle Thinking Group, Department of Graphic Design and Engineering Projects, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, Edif. Martina Casiano, 48940 Leioa, Spain
| | - Anxiong Liu
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
- Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China
| | - Luhe Qi
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Yifan Ma
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Jing Huang
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Ziyang Lu
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Le Yu
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Hongbing Deng
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Chaoji Chen
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| |
Collapse
|
13
|
Mills WF, Norris C, Black S, Phillips RA, Hammer S, Olsen B, Danielsen J. Plastic ingestion and trace element contamination of Manx shearwaters Puffinus puffinus on the Faroe Islands. MARINE POLLUTION BULLETIN 2024; 204:116537. [PMID: 38838391 DOI: 10.1016/j.marpolbul.2024.116537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/07/2024]
Abstract
Procellariiform seabirds can accumulate high levels of plastic in their gastrointestinal tracts, which can cause physical damage and potentially provides a contamination route for trace elements. We examined plastic ingestion and trace element contamination of fledgling Manx shearwaters Puffinus puffinus that were harvested for human consumption in 2003 and 2018 on Skúvoy, Faroe Islands (North Atlantic Ocean). Overall, 88% of fledglings contained plastic in their gastrointestinal tracts, with a mean (± SD) of 7.2 ± 6.6 items weighing 0.007 ± 0.016 g. Though the incidence was similar, fledglings ingested significantly more plastic in 2018 compared to 2003. Hepatic trace element concentrations were unrelated to plastic ingestion. Hepatic carbon (δ13C) and nitrogen (δ15N) stable isotope values were significantly lower in birds sampled in 2018 versus 2003, potentially reflecting further offshore feeding at lower trophic levels. Future research is needed to understand the extent of plastic ingestion by Faroe Islands seabirds.
Collapse
Affiliation(s)
- William F Mills
- Department of Geography and Environmental Science, University of Reading, Reading, UK.
| | | | - Stuart Black
- Department of Geography and Environmental Science, University of Reading, Reading, UK
| | - Richard A Phillips
- British Antarctic Survey, Natural Environment Research Council, Cambridge CB3 0ET, UK
| | - Sjúrður Hammer
- Faroese Environment Agency, Traðagøta 38, Argir FO-165, Faroe Islands
| | - Bergur Olsen
- Faroe Marine Research Institute, Nóatún 1, 100 Tórshavn, Faroe Islands
| | | |
Collapse
|
14
|
Zhao X, Wu X, Yu D, Lundquist C, Li C, Zhong H. Protect wetlands from legacy plastics. Science 2024; 384:1414-1415. [PMID: 38935732 DOI: 10.1126/science.adq2315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Affiliation(s)
- Xiaoli Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Xiaowei Wu
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, China
| | - Dandan Yu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing, China
| | - Carolyn Lundquist
- School of Environment, The University of Auckland, Auckland, New Zealand
- National Institute of Water and Atmospheric Research, Hamilton, New Zealand
| | - Chengjun Li
- Institute of Environmental Research at Greater Bay Area, Guangzhou University, Guangzhou, China
| | - Huan Zhong
- School of Environment, Nanjing University, Nanjing, China
- Environmental and Life Science Program, Trent University, Peterborough, ON, Canada
| |
Collapse
|
15
|
Wen Y, Deng S, Wang B, Zhang F, Luo T, Kuang H, Kuang X, Yuan Y, Huang J, Zhang D. Exposure to polystyrene nanoplastics induces hepatotoxicity involving NRF2-NLRP3 signaling pathway in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 278:116439. [PMID: 38728945 DOI: 10.1016/j.ecoenv.2024.116439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/09/2024] [Accepted: 05/03/2024] [Indexed: 05/12/2024]
Abstract
Nanoplastic contamination has been of intense concern by virtue of the potential threat to human and ecosystem health. Animal experiments have indicated that exposure to nanoplastics (NPs) can deposit in the liver and contribute to hepatic injury. To explore the mechanisms of hepatotoxicity induced by polystyrene-NPs (PS-NPs), mice and AML-12 hepatocytes were exposed to different dosages of 20 nm PS-NPs in this study. The results illustrated that in vitro and in vivo exposure to PS-NPs triggered excessive production of reactive oxygen species and repressed nuclear factor erythroid-derived 2-like 2 (NRF2) antioxidant pathway and its downstream antioxidase expression, thus leading to hepatic oxidative stress. Moreover, PS-NPs elevated the levels of NLRP3, IL-1β and caspase-1 expression, along with an activation of NF-κB, suggesting that PS-NPs induced hepatocellular inflammatory injury. Nevertheless, the activaton of NRF2 signaling by tert-butylhydroquinone mitigated PS-NPs-caused oxidative stress and inflammation, and inbihited NLRP3 and caspase-1 expression. Conversely, the rescuing effect of NRF2 signal activation was dramatically supressed by treatment with NRF2 inhibitor brusatol. In summary, our results demonstrated that NRF2-NLRP3 pathway is involved in PS-NPs-aroused hepatotoxicity, and the activation of NRF2 signaling can protect against PS-NPs-evoked liver injury. These results provide novel insights into the hepatotoxicity elicited by NPs exposure.
Collapse
Affiliation(s)
- Yiqian Wen
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Shiyi Deng
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Binhui Wang
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Fan Zhang
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Tao Luo
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang 330031, China
| | - Haibin Kuang
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Xiaodong Kuang
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Yangyang Yuan
- Clinical Medical Experimental Center of Nanchang University, Nanchang 330031, China
| | - Jian Huang
- Clinical Medical Experimental Center of Nanchang University, Nanchang 330031, China
| | - Dalei Zhang
- School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330006, China; School of Public Health, Jiangxi Medical College, Nanchang University, Nanchang 330006, China; Jiangxi Provincial Key Laboratory of Disease Prevention and Public Health, Nanchang 330006, China.
| |
Collapse
|
16
|
Weng C, Ding Z, Qiu W, Wang B, Tang X. Achieving Exceptional Thermal and Hydrolytic Resistance in Chemically Circular Polyesters via In-Chain 1,3-Cyclobutane Rings. Angew Chem Int Ed Engl 2024; 63:e202401682. [PMID: 38587230 DOI: 10.1002/anie.202401682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/31/2024] [Accepted: 04/08/2024] [Indexed: 04/09/2024]
Abstract
Polyesters, a highly promising class of circular polymers for achieving a closed-loop sustainable plastic economy, inherently exhibit material stability defects, especially in thermal and hydrolytic instability. Here, we introduce a class of polyesters, P(4R-BL) (R=Ph, Bu), featuring conformationally rigid 1,3-cyclobutane rings in the backbone. These polyesters not only exhibit superior thermostability (Td,5%=376-380 °C) but also demonstrate exceptional hydrolytic resistance with good integrity even after 1 year in basic and acidic aqueous solutions, distinguishing themselves from typical counterparts. Tailoring the flexibility of the side group R enables the controlled thermal and mechanical performance of P(4Ph-BL) and P(4Bu-BL) to rival durable syndiotactic polystyrene (SPS) and low-density polyethylene (LDPE), respectively. Significantly, despite their high stability, both polyesters can be effectively depolymerized into pristine monomers, establishing a circular life cycle.
Collapse
Affiliation(s)
- Chaoqun Weng
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Zhiqiang Ding
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Weijie Qiu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Bin Wang
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Xiaoyan Tang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| |
Collapse
|
17
|
Xiao Y, Tian Y, Xu W, Zhu J. Photodegradation of Microplastics through Nanomaterials: Insights into Photocatalysts Modification and Detailed Mechanisms. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2755. [PMID: 38894019 PMCID: PMC11174110 DOI: 10.3390/ma17112755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
Microplastics (MPs) pose a profound environmental challenge, impacting ecosystems and human health through mechanisms such as bioaccumulation and ecosystem contamination. While traditional water treatment methods can partially remove microplastics, their limitations highlight the need for innovative green approaches like photodegradation to ensure more effective and sustainable removal. This review explores the potential of nanomaterial-enhanced photocatalysts in addressing this issue. Utilizing their unique properties like large surface area and tunable bandgap, nanomaterials significantly improve degradation efficiency. Different strategies for photocatalyst modification to improve photocatalytic performance are thoroughly summarized, with a particular emphasis on element doping and heterojunction construction. Furthermore, this review thoroughly summarizes the possible fundamental mechanisms driving the photodegradation of microplastics facilitated by nanomaterials, with a focus on processes like free radical formation and singlet oxygen oxidation. This review not only synthesizes critical findings from existing studies but also identifies gaps in the current research landscape, suggesting that further development of these photocatalytic techniques could lead to substantial advancements in environmental remediation practices. By delineating these novel approaches and their mechanisms, this work underscores the significant environmental implications and contributes to the ongoing development of sustainable solutions to mitigate microplastic pollution.
Collapse
Affiliation(s)
- Yiting Xiao
- Department of Biological Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Yang Tian
- Program of Material Science and Engineering, University of Arkansas, Fayetteville, AR 72701, USA;
| | - Wenbo Xu
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA;
| | - Jun Zhu
- Department of Biological Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| |
Collapse
|
18
|
Choi S, Lee S, Kim MK, Yu ES, Ryu YS. Challenges and Recent Analytical Advances in Micro/Nanoplastic Detection. Anal Chem 2024; 96:8846-8854. [PMID: 38758170 DOI: 10.1021/acs.analchem.3c05948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Despite growing ecological concerns, studies on microplastics and nanoplastics are still in their initial stages owing to technical hurdles in analytical techniques, especially for nanoplastics. We provide an overview of the general attributes of micro/nanoplastics in natural environments and analytical techniques commonly used for their analysis. After demonstrating the analytical challenges associated with the identification of nanoplastics due to their distinctive characteristics, we discuss recent technological advancements for detecting nanoplastics.
Collapse
Affiliation(s)
- Seungyeop Choi
- School of Biomedical Engineering, Korea University, Seoul 02841, Republic of Korea
- BK21 Four Institute of Precision Public Health, Korea University, Korea University, Seoul 02841, Republic of Korea
| | - Seungha Lee
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Myung-Ki Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Eui-Sang Yu
- Materials and Components Research Division, Electronics and Telecommunications Research Institute, Daejeon 34129, Republic of Korea
| | - Yong-Sang Ryu
- School of Biomedical Engineering, Korea University, Seoul 02841, Republic of Korea
- BK21 Four Institute of Precision Public Health, Korea University, Korea University, Seoul 02841, Republic of Korea
- Department of Micro/Nano System, Korea University, Seoul 02841, Republic of Korea
| |
Collapse
|
19
|
Oliveira S, Krelling AP, Turra A. Contamination by microplastics in oysters shows a widespread but patchy occurrence in a subtropical estuarine system. MARINE POLLUTION BULLETIN 2024; 203:116380. [PMID: 38733889 DOI: 10.1016/j.marpolbul.2024.116380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 04/10/2024] [Accepted: 04/13/2024] [Indexed: 05/13/2024]
Abstract
Microplastics (MPs) have been widely documented in marine biota, with a notable presence in bivalve species. This study examines microplastic (MP) contamination in oysters across a subtropical estuarine system, revealing widespread and highly variable levels of contamination. Our results indicate a general trend of higher contamination in areas with greater anthropogenic impact, and unexpectedly high values in remote Marine Protected Areas, suggesting alternative sources of MPs. We observed a 94.31 % frequency of occurrence and an average contamination level of 8.16 ± 6.39 MP.ind-1, 1.06 ± 1.28 MP.g-1ww, and 7.54 ± 6.55 MP.g-1dw. Transparent fibers, predominantly composed of polyester and polyethylene from likely textile origins, were the most common. The findings underscore the significance of MP pollution in marine environments, even in protected zones. For enhanced spatial assessment and consistent data comparison, we recommend that future studies include MP quantities in terms of dry weight (MP.g-1dw) and biometric data such as size and weight.
Collapse
Affiliation(s)
- Suzane Oliveira
- Federal University of Paraná (UFPR), Center for Marine Studies (CEM), Coastal and Oceanic Systems Postgraduate Program (PGSISCO), Av. Beira-Mar, s/n, 83255-976 Pontal do Paraná, Paraná, Brazil; Federal University of Paraná (UFPR), Scientific and didactic laboratories of Setor Litoral. R. Jaguariaíva, 512, 83260-000 Matinhos, Paraná, Brazil.
| | - Allan Paul Krelling
- Federal University of Paraná (UFPR), Center for Marine Studies (CEM), Coastal and Oceanic Systems Postgraduate Program (PGSISCO), Av. Beira-Mar, s/n, 83255-976 Pontal do Paraná, Paraná, Brazil; Federal Institute of Paraná (IFPR), Paranaguá Campus, Natural Resources Department, Antônio Carlos Rodrigues St. 453, 83215-750 Paranaguá, Paraná, Brazil
| | - Alexander Turra
- Federal University of Paraná (UFPR), Center for Marine Studies (CEM), Coastal and Oceanic Systems Postgraduate Program (PGSISCO), Av. Beira-Mar, s/n, 83255-976 Pontal do Paraná, Paraná, Brazil; University of São Paulo (USP), Department of Biological Oceanography, Oceanographic Institute (IOUSP), Praça do Oceanográfico, 191, 05508-120 São Paulo, SP, Brazil
| |
Collapse
|
20
|
Wang N, Liu J, Liu S, Liu G. Hydrodeoxygenation of Oxygen-Containing Aromatic Plastic Wastes into Cycloalkanes and Aromatics. Chempluschem 2024:e202400190. [PMID: 38698501 DOI: 10.1002/cplu.202400190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/30/2024] [Accepted: 05/02/2024] [Indexed: 05/05/2024]
Abstract
Chemical recycling and upcycling offer promising approaches for the management of plastic wastes. Hydrodeoxygenation (HDO) is one of the appealing ways for conversion of oxygen-containing plastic wastes, including polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycarbonate (PC), polyphenyl ether (PPO), and polyether ether ketone (PEEK), into cyclic alkanes and aromatics in high yields under mild reaction conditions. The challenge lies in achieving C-O activation while preserving C-C bonds. In this review, we highlight the recent advancements in catalytic strategies and catalysts for the conversion of these oxygen-containing plastic wastes into cycloalkanes and aromatics. The reaction systems, including multi-step routes, direct HDO and transfer HDO methods, are exemplified. The design and performance of HDO catalysts are systematically summarized and compared. We comprehensively discuss the functions of the catalysts' components, reaction pathway and mechanism to gain insights into the HDO process for efficient valorization of oxygen-containing plastic wastes. Finally, we provide perspectives for this field, with specific emphasis on the non-noble metal catalyst design, selectivity control, reaction network and mechanism studies, mixed plastic wastes management and product functionalization. We anticipate that this review will inspire innovations on the catalytic process development and rational catalyst design for the HDO of oxygen-containing aromatic plastics to establish a low-emission circular economy.
Collapse
Affiliation(s)
- Nan Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, 300072, Tianjin, China
| | - Jieyi Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, 300072, Tianjin, China
| | - Sibao Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, 300072, Tianjin, China
- Haihe Lab of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Guozhu Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, 300072, Tianjin, China
- Haihe Lab of Sustainable Chemical Transformations, Tianjin, 300192, China
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang, 315201, China
| |
Collapse
|
21
|
Yang L, Kang S, Luo X, Wang Z. Microplastics in drinking water: A review on methods, occurrence, sources, and potential risks assessment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123857. [PMID: 38537794 DOI: 10.1016/j.envpol.2024.123857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/16/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
Microplastics in drinking water captured widespread attention following reports of widespread detection around the world. Concerns have been raised about the potential adverse effects of microplastics in drinking water on human health. Given the widespread interest in this research topic, there is an urgent need to compile existing data and assess current knowledge. This paper provides a systematic review of studies on microplastics in drinking water, their evidence, key findings, knowledge gaps, and research needs. The data collected show that microplastics are widespread in drinking water, with large variations in reported concentrations. Standardized methodologies of sampling and analysis are urgently needed. There were more fibrous and fragmented microplastics, with the majority being <10 μm in size and composed of polyester, polyethylene, polypropylene, and polystyrene. Little attention has been paid to the color of microplastics. More research is needed to understand the occurrence and transfer of microplastics throughout the water supply chain and the treatment efficiency of drinking water treatment plants (DWTPs). Methods capable of analyzing microplastics <10 μm and nanoplastics are urgently needed. Potential ecological assessment models for microplastics currently in use need to be improved to take into account the complexity and specificity of microplastics.
Collapse
Affiliation(s)
- Ling Yang
- Key Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Shichang Kang
- Key Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xi Luo
- Key Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhaoqing Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| |
Collapse
|
22
|
He C, Lin X, Li P, Hou J, Yang M, Sun Z, Zhang S, Yang K, Lin D. Nematode Uptake Preference toward Different Nanoplastics through Avoidance Behavior Regulation. ACS NANO 2024; 18:11323-11334. [PMID: 38635335 DOI: 10.1021/acsnano.4c00736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Expounding bioaccumulation pathways of nanoplastics in organisms is a prerequisite for assessing their ecological risks in the context of global plastic pollution. Invertebrate uptake preference toward nanoplastics is a key initial step of nanoplastic food chain transport that controls their global biosafety, while the biological regulatory mechanism remains unclear. Here, we reveal a preferential uptake mechanism involving active avoidance of nanoplastics by Caenorhabditis elegans and demonstrate the relationship between the uptake preference and nanoplastic characteristics. Nanoplastics with 100 nm in size or positive surface charges induce stronger avoidance due to higher toxicity, causing lower accumulation in nematodes, compared to the 500 nm-sized or negatively charged nanoplastics, respectively. Further evidence showed that nematodes did not actively ingest any types of nanoplastics, while different nanoplastics induced defense responses in a toxicity-dependent manner and distinctly stimulated the avoidance behavior of nematodes (ranged from 15.8 to 68.7%). Transcriptomics and validations using mutants confirmed that the insulin/IGF signaling (IIS) pathway is essential for the selective avoidance of nanoplastics. Specifically, the activation of DAF-16 promoted the IIS pathway-mediated defense against nanoplastics and stimulated the avoidance behavior, increasing the survival chances of nematodes. Considering the genetical universality of this defense response among invertebrates, such an uptake preference toward certain nanoplastics could lead to cascaded risks in the ecosystem.
Collapse
Affiliation(s)
- Caijiao He
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Xintong Lin
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong China
| | - Pei Li
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Jie Hou
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Meirui Yang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Ziyi Sun
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Shuang Zhang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Kun Yang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Daohui Lin
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Ecological Civilization Academy, Anji 313300, China
| |
Collapse
|
23
|
Schutten K, Chandrashekar A, Dougherty L, Stevens B, Parmley EJ, Pearl D, Provencher JF, Jardine CM. How do life history and behaviour influence plastic ingestion risk in Canadian freshwater and terrestrial birds? ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123777. [PMID: 38490523 DOI: 10.1016/j.envpol.2024.123777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/26/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
Plastic ingestion presents many potential avenues of risk for wildlife. Understanding which species and environments are most exposed to plastic pollution is a critical first step in investigating the One Health implications of plastic exposure. The objectives of this study were the following: 1) Utilize necropsy as part of ongoing passive disease surveillance to investigate ingested mesoplastics in birds collected in Ontario and Nunavut, and examine the relationships between bird-level factors and ingested debris; 2) evaluate microplastic ingestion compared to ingested mesodebris in raptors; and 3) identify potential sentinel species for plastic pollution monitoring in understudied freshwater and terrestrial (inland) environments. Between 2020 and 2022, 457 free-ranging birds across 52 species were received for postmortem examination. The upper gastrointestinal tracts were examined for mesoplastics and other debris (>2 mm) using standard techniques. Twenty-four individuals (5.3%) retained mesodebris and prevalence varied across species, with foraging technique, food type, and foraging substrate all associated with different metrics of debris ingestion. The odds of ingesting any type of anthropogenic mesodebris was nine times higher for non-raptorial species than for raptors. For a subset of raptors (N = 54) across 14 species, the terminal portion of the distal intestinal tract was digested with potassium hydroxide and microparticles were assessed using stereo-microscopy. Although only one of 54 (1.9%) raptors included in both analyses retained mesodebris in the upper gastrointestinal tract, 24 (44.4%) contained microparticles in the distal intestine. This study demonstrates that a variety of Canadian bird species ingest anthropogenic debris in inland systems, and suggests that life history and behaviour are associated with ingestion risk. For raptors, the mechanisms governing exposure and ingestion of mesoplastics appear to be different than those that govern microplastics. Herring gulls (Larus argentatus) and ring-billed gulls (Larus delawarensis) are proposed as ideal sentinels for plastic pollution monitoring in inland systems.
Collapse
Affiliation(s)
- Kerry Schutten
- University of Guelph, 50 Stone Rd E., Guelph, Ontario, N1G 2W1, Canada.
| | | | - Laura Dougherty
- Canadian Wildlife Health Cooperative, University of Guelph, 50 Stone Rd E., Guelph, Ontario, N1G 2W1, Canada
| | - Brian Stevens
- Canadian Wildlife Health Cooperative, University of Guelph, 50 Stone Rd E., Guelph, Ontario, N1G 2W1, Canada
| | - E Jane Parmley
- University of Guelph, 50 Stone Rd E., Guelph, Ontario, N1G 2W1, Canada
| | - David Pearl
- University of Guelph, 50 Stone Rd E., Guelph, Ontario, N1G 2W1, Canada
| | - Jennifer F Provencher
- Environment and Climate Change Canada, National Wildlife Research Centre, 1125 Colonel By Drive, Ottawa, ON, K1A 0H3, Canada
| | - Claire M Jardine
- University of Guelph, 50 Stone Rd E., Guelph, Ontario, N1G 2W1, Canada
| |
Collapse
|
24
|
MATSUMOTO R, HORIE M, MITSUHASHI Y, OHSAKO Y. Anthropogenic threats to the reintroduced population of Oriental storks in Japan: analysis of the causes of injury and death of 153 storks from 2005 to 2021. J Vet Med Sci 2024; 86:400-408. [PMID: 38325859 PMCID: PMC11061574 DOI: 10.1292/jvms.22-0560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 01/30/2024] [Indexed: 02/09/2024] Open
Abstract
After the native population of Oriental stork (Ciconia boyciana) in Japan disappeared, a reintroduction project was implemented in 2005. All released storks and most wild-fledged storks were individually identified using colored rings on their legs. The size of the reintroduced population reached 256 by the end of 2021. In this study, we investigated the causes of stork injury and death in wild populations to clarify important medical issues for successful reintroduction. During the survey, 153 of 412 (78 released and 334 fledged storks) storks were injured or died between 2005 and 2021. At least 49.7% of the injuries and deaths were directly caused by human activities. Entanglement with pest control measures (such as bird- and beast-proofing nets) and accident with electrical and telecommunication equipment are two major causes of injury and death of reintroduced Oriental storks in Japan. It is important to recognize that these anthropogenic threats have a significant impact on the establishment and maintenance of the reintroduced populations of Oriental storks in Japan. Therefore, it is necessary to implement countermeasures against these threats to establish human and Oriental storks coexistence, which is a major goal of reintroduction.
Collapse
Affiliation(s)
- Rei MATSUMOTO
- Hyogo Park of the Oriental White Stork, Hyogo, Japan
| | - Mayu HORIE
- Hyogo Park of the Oriental White Stork, Hyogo, Japan
| | | | - Yoshito OHSAKO
- Hyogo Park of the Oriental White Stork, Hyogo, Japan
- Graduate School of Regional Resource Management, University
of Hyogo, Hyogo, Japan
| |
Collapse
|
25
|
Behmanesh M, Chamani A, Chavoshi E. Potentially Toxic Elements' Accumulation in Relation to Sediment Physicochemical Attributes and Microplastic Content in Zayandeh-Rood River, Iran. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2024; 86:274-287. [PMID: 38551678 DOI: 10.1007/s00244-024-01059-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 03/06/2024] [Indexed: 04/21/2024]
Abstract
Microplastics (MPs) are an emerging pollutant whose ability to adsorb potentially toxic elements (PTEs) poses a serious threat to aquatic ecosystems, including rivers. In highly developed basins, the abundance of MPs in river sediment is expected to be high, elevating the sedimentary accumulation of PTEs. This hypothesis was tested in the Zayandeh-Rood River, Central Iran, with 21 sediment sampling stations distributed along the entire river stretch. Results of sediment analysis showed significant variations in the abundance and size of MPs, with concentrations ranked as Ba (270.71 mg/kg) > Li (21.29 mg/kg) > Cs (2.50 mg/kg) > Be (1.44 mg/kg) > Sn (1.17 mg/kg) > Mo (1.06 mg/kg) > Ag (0.76 mg/kg), along with sediment physicochemical attributes such as EC, TOC, pH and grain size. MPs were identified in all sediment samples with a mean of 588 items/kg dry weight. Except for Ag, all other PTEs were classified as uncontaminated but exhibited increased enrichment downstream. According to the results of the generalized additive model (maximum R-sq of 0.766), the sedimentary concentration of the majority of PTEs is nonlinearly and positively associated with smaller and more abundant MPs. This study acknowledges that MPs might influence sediment porosity, permeability and structure, thereby directly affecting the settling dynamics of other particles, especially PTEs.
Collapse
Affiliation(s)
- Mokarrameh Behmanesh
- Environmental Science and Engineering Department, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Atefeh Chamani
- Environmental Science and Engineering Department, Waste and Wastewater Research Center, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
| | - Elham Chavoshi
- Department of Soil Science, College of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| |
Collapse
|
26
|
Li Y, Wang S, Qian S, Liu Z, Weng Y, Zhang Y. Depolymerization and Re/Upcycling of Biodegradable PLA Plastics. ACS OMEGA 2024; 9:13509-13521. [PMID: 38559974 PMCID: PMC10976375 DOI: 10.1021/acsomega.3c08674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/18/2024] [Accepted: 02/23/2024] [Indexed: 04/04/2024]
Abstract
With the escalating utilization of plastic products, global attention has been increasingly drawn to environmental pollution and recycling challenges stemming from plastic waste. Against this backdrop, biodegradable plastics have emerged as viable alternatives owing to their sustainability and capacity for biodegradation. Polylactic acid (PLA) presently commands the largest market share among biodegradable plastics, finding extensive application in products such as thin films, medical materials, and biodegradable straws. However, the widespread adoption of PLA is hindered by challenges such as high cost, low recycling rates, and complete degradation to H2O and CO2 in natural conditions. Therefore, it is imperative and time-sensitive to explore solutions for the depolymerization and re/upcycling of PLA waste plastics. This review comprehensively outlines the current landscape of PLA recycling methods, emphasizing the advantages and significance of chemical re/upcycling. The subsequent exploration encompasses recent breakthroughs and technical obstacles inherent in diverse chemical depolymerization methods. Ultimately, this review accentuates the impediments and forthcoming possibilities in the realm of PLA plastics, emphasizing the pursuit of closed-loop recycling and upcycling.
Collapse
Affiliation(s)
- YingChao Li
- College of Chemistry and
Chemical Engineering, Henan Polytechnic
University, Jiaozuo 454000, China
| | - Shuai Wang
- College of Chemistry and
Chemical Engineering, Henan Polytechnic
University, Jiaozuo 454000, China
| | - Song Qian
- College of Chemistry and
Chemical Engineering, Henan Polytechnic
University, Jiaozuo 454000, China
| | - Zhijie Liu
- College of Chemistry and
Chemical Engineering, Henan Polytechnic
University, Jiaozuo 454000, China
| | - Yujing Weng
- College of Chemistry and
Chemical Engineering, Henan Polytechnic
University, Jiaozuo 454000, China
| | - Yulong Zhang
- College of Chemistry and
Chemical Engineering, Henan Polytechnic
University, Jiaozuo 454000, China
| |
Collapse
|
27
|
Zhao J, Lan R, Wang Z, Su W, Song D, Xue R, Liu Z, Liu X, Dai Y, Yue T, Xing B. Microplastic fragmentation by rotifers in aquatic ecosystems contributes to global nanoplastic pollution. NATURE NANOTECHNOLOGY 2024; 19:406-414. [PMID: 37945989 DOI: 10.1038/s41565-023-01534-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/25/2023] [Indexed: 11/12/2023]
Abstract
The role of aquatic organisms in the biological fragmentation of microplastics and their contribution to global nanoplastic pollution are poorly understood. Here we present a biological fragmentation pathway that generates nanoplastics during the ingestion of microplastics by rotifers, a commonly found and globally distributed surface water zooplankton relevant for nutrient recycling. Both marine and freshwater rotifers could rapidly grind polystyrene, polyethylene and photo-aged microplastics, thus releasing smaller particulates during ingestion. Nanoindentation studies of the trophi of the rotifer chitinous mastax revealed a Young's modulus of 1.46 GPa, which was higher than the 0.79 GPa for polystyrene microparticles, suggesting a fragmentation mechanism through grinding the edges of microplastics. Marine and freshwater rotifers generated over 3.48 × 105 and 3.66 × 105 submicrometre particles per rotifer in a day, respectively, from photo-aged microplastics. Our data suggest the ubiquitous occurrence of microplastic fragmentation by different rotifer species in natural aquatic environments of both primary and secondary microplastics of various polymer compositions and provide previously unidentified insights into the fate of microplastics and the source of nanoplastics in global surface waters.
Collapse
Affiliation(s)
- Jian Zhao
- Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology (Ministry of Education), Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Ruyi Lan
- Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology (Ministry of Education), Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution Control, and School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
| | - Wenli Su
- Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology (Ministry of Education), Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
| | - Dongpo Song
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Runze Xue
- Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology (Ministry of Education), Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
| | - Zhuomiao Liu
- Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology (Ministry of Education), Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA
| | - Xia Liu
- Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology (Ministry of Education), Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
| | - Yanhui Dai
- Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology (Ministry of Education), Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
| | - Tongtao Yue
- Institute of Coastal Environmental Pollution Control, Key Laboratory of Marine Environment and Ecology (Ministry of Education), Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA.
| |
Collapse
|
28
|
Noh HJ, Moon Y, Shim WJ, Cho EV, Hong SH. Experimental study on color and texture as cues for plastic debris ingestion by captive sea turtles. MARINE POLLUTION BULLETIN 2024; 200:116055. [PMID: 38295483 DOI: 10.1016/j.marpolbul.2024.116055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 01/12/2024] [Accepted: 01/14/2024] [Indexed: 02/02/2024]
Abstract
Sea turtles face considerable risks from ingesting marine debris. They are primarily visual feeders, so color may be important for identifying food suitability or enhancing prey detection. Here, we investigated the impacts of color and texture on foraging behavior in relation to plastic consumption. We experimentally assessed the influences of color and texture as attractors for sea turtles using edible jellyfish. The findings showed that the colors of objects significantly affected selective preferences, as evidenced by different behaviors by sea turtles in response to different colors. They exhibited diet-related selectivity toward colors similar to common aquarium food, and texture had a significant impact on complete ingestion. The results suggest that plastic resembling natural prey is more likely ingested. Also, sea turtles were attracted by the color yellow, suggesting that visually distinctive items can attract them. Our results provide fundamental knowledge, helping mitigate the effects of plastic pollution on wildlife.
Collapse
Affiliation(s)
- Hee-Jin Noh
- Ecological Risk Research Department, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea
| | - Yelim Moon
- Ecological Risk Research Department, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea; Department of Ocean Science, KIOST School, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Won Joon Shim
- Ecological Risk Research Department, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea; Department of Ocean Science, KIOST School, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Eun Vit Cho
- Department of Aqua, Aqua Planet, Yeosu 59744, Republic of Korea
| | - Sang Hee Hong
- Ecological Risk Research Department, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea; Department of Ocean Science, KIOST School, University of Science and Technology, Daejeon 34113, Republic of Korea.
| |
Collapse
|
29
|
Kazour M, Amara R. To what extent is blue mussels caging representative of microplastics in the natural environment? THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168975. [PMID: 38036136 DOI: 10.1016/j.scitotenv.2023.168975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/27/2023] [Accepted: 11/27/2023] [Indexed: 12/02/2023]
Abstract
Bivalves have gained prominence in active biomonitoring of microplastics (MPs) pollution. Nevertheless, critical questions persist regarding blue mussels' selectivity and representativeness of the presence of microplastics in the natural environments. In this current study, we explored short- and long-term exposure durations for caged mussels, aiming to establish the minimum period required for them to attain a steady-state in microplastics retention and investigate their selectivity in a real-world context. Various deployment periods (1, 2, and 5 weeks) were tested, with concurrent collection of MPs from the surrounding water each week. The results revealed a significant increase in ingested MPs, reaching a threshold of approximately 1.4 MPs per gram of wet weight during the fifth week of caging. The characteristics of MPs found in mussels exhibited some differences from those collected in the surrounding waters and were less temporally variable. Notably, the collected caged mussels demonstrated a tendency to retain smaller particles (<80 μm). This study underscores complex processes governing MPs selection in natural environments and the need for further research to gain a more comprehensive understanding of the conditions and suitability of mussels as bioindicators for assessing MPs pollution.
Collapse
Affiliation(s)
- Maria Kazour
- Univ. Littoral Côte d'Opale, CNRS, Univ. Lille, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, F-62930 Wimereux, France.
| | - Rachid Amara
- Univ. Littoral Côte d'Opale, CNRS, Univ. Lille, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, F-62930 Wimereux, France.
| |
Collapse
|
30
|
Liu K, Zhu L, Wei N, Li D. Underappreciated microplastic galaxy biases the filter-based quantification. JOURNAL OF HAZARDOUS MATERIALS 2024; 463:132897. [PMID: 37935065 DOI: 10.1016/j.jhazmat.2023.132897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/18/2023] [Accepted: 10/28/2023] [Indexed: 11/09/2023]
Abstract
Long-term environmental loading of microplastics (MPs) causes alarming exposure risks for a variety of species worldwide, considered a planetary threat to the well-being of ecosystems. Robust quantitative estimates of MP extents and featured diversity are the basis for comprehending their environmental implications precisely, and of these methods, membrane-based characterizations predominate with respect to MP inspections. However, though crucial to filter-based MP quantification, aggregation statuses of retained MPs on these substrates remain poorly understood, leaving us a "blind box" that exaggerates uncertainty in quantitive strategies of preselected areas without knowing overview loading structure. To clarify this uncertainty and estimate their impacts on MP counting, using MP imaging data assembled from peer-reviewed studies through a systematic review, here we analyze the particle-specific profiles of MPs retained on various substrates according to their centre of mass with a fast-random forests algorithm. We visualize the formation of distinct galaxy-like MP aggregation-similar to the solar system and Milky Way System comprised of countless stars-across the pristine and environmental samples by leveraging two spatial parameters developed in this study. This unique pattern greatly challenges the homogeneously or randomly distributed MP presumption adopted extensively for simplified membrane-based quantification purposes and selective ROI (region of interest) estimates for smaller-sized plastics down to the nano-range, as well as the compatibility theory using pristine MPs as the standard to quantify the presence of environmental MPs. Furthermore, our evaluation with exemplified numeration cases confirms these location-specific and area-dependent biases in many imaging analyses of a selective filter area, ascribed to the minimum possibility of reaching an ideal turnover point for the selective quantitive strategies. Consequently, disproportionate MP schemes on loading substrates yield great uncertainty in their quantification processing, highlighting the prompt need to include pattern-resolved calibration prior to quantification. Our findings substantially advance our understanding of the structure, behavior, and formation of these MP aggregating statuses on filtering substrates, addressing a fundamental question puzzling scientists as to why reproducible MP quantification is barely achievable even for subsamples. This study inspires the following studies to reconsider the impacts of aggregating patterns on the effective counting protocols and target-specific removal of retained MP aggregates through membrane separation techniques.
Collapse
Affiliation(s)
- Kai Liu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
| | - Lixin Zhu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Marine and Environmental Sciences, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, USA
| | - Nian Wei
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Norwegian Institute for Water Research, 94 Økernveien, Oslo 0579, Norway
| | - Daoji Li
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| |
Collapse
|
31
|
Zhang Y, Ju J, Long X, Zhu M, Jiang Y, Yang H. Length-dependent toxic effects of microplastic fibers on Chlorella pyrenoidosa. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123037. [PMID: 38030106 DOI: 10.1016/j.envpol.2023.123037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/07/2023] [Accepted: 11/22/2023] [Indexed: 12/01/2023]
Abstract
Microplastics (MPs), a pervasive pollutant in aquatic environments, are increasingly recognized for their detrimental effects on aquatic organisms. However, the present understanding of their impact on phytoplankton, particularly freshwater microalgae, remains limited. Furthermore, previous studies have predominantly focused on MP particles, largely overlooking the most prevalent form of MPs in aquatic settings-fibers. In this study, we scrutinized the toxicological implications of microplastic fibers (MFs) spanning four distinct lengths (50 μm, 100 μm, 150 μm, and 200 μm) on the protein-nucleated algae Chlorella pyrenoidosa over a six-day period. The study unequivocally demonstrated that MFs markedly impeded C. pyrenoidosa growth, diminished photosynthetic pigment content, and induced oxidative stress, with all observed effects exhibiting a length-dependent correlation. Electron microscopy further revealed notable damage to algal cell membranes. Cell membrane shrinkage, cytoplasm outflow, and abnormalities in cell division were observed in the 150 μm and 200 μm groups. Furthermore, C. pyrenoidosa clustered around the 200 μm MF were notably denser compared to other groups. The present study demonstrated that MFs had length-dependent toxic effects on C. pyrenoidosa. These findings offer novel insights into the deleterious impact of MFs on aquatic organisms, underscoring the pivotal role of length in influencing their toxicity.
Collapse
Affiliation(s)
- Yingying Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China.
| | - Jian Ju
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Xiaodong Long
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Mingzhen Zhu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Yinan Jiang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| | - Hui Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China
| |
Collapse
|
32
|
Oliveira BSSP, Santos RG, Santos BA. Improving the knowledge management of marine megafauna strandings. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119815. [PMID: 38100861 DOI: 10.1016/j.jenvman.2023.119815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/27/2023] [Accepted: 12/09/2023] [Indexed: 12/17/2023]
Abstract
Although the marine megafauna often strands on beaches around the world, such as sea turtles and whales, stranding data are poorly managed and incorporated into management and conservation strategies. Here we use a knowledge value chain framework to call attention for the urgent need to improve our data architecture and knowledge management on marine megafauna strandings. We use Brazil, a continental megadiverse federative republic, as study model. After describing the main components and identifying the strengths and weaknesses of the current Brazilian data architecture, we propose 10 practical measures for its improvement involving researchers, companies, non-governmental organizations, legislators, policy makers, public agents, citizen scientists, and local communities. Although Brazil has notable strengths such as comprehensive environmental legislation, hundreds of scientists and dozens of prestigious research institutions, stranding data is not translated into technical-scientific knowledge; technical-scientific knowledge is not transformed into effective public regulations; deficient regulations lead to bad decisions and limited actions, which in turn result in ineffective management and conservation strategies. In light of the UN Decade of Ocean Science for Sustainable Development (2021-2030), we propose (1) expanding standardized beach monitoring projects to the entire Brazilian coast; (2) creating a governmental database with FAIR principles; (3) encouraging the development of broad citizen science initiatives; (4) funding scientists and research institutions; (5) boosting outreach activities among researchers to popularize the scientific knowledge; (6) raising awareness among legislators and policy makers on the problem of strandings; (7) updating the existing legal provisions on the environmental licensing of activities developed at sea; (8) hiring new environmental analysts and inspectors and improving the infrastructure of executing environmental agencies; (9) strengthening existing conservation networks with multiple stakeholders; and (10) making the results of the management and conservation strategies broadly accessible to society. These recommendations may also apply to other coastal countries around the world.
Collapse
Affiliation(s)
- Bruno S S P Oliveira
- Programa de Pós-Graduação em Ciências Biológicas, Universidade Federal da Paraíba, Cidade Universitária, Castelo Branco, João Pessoa, PB 58051-900, Brazil; Instituto Biota de Conservação, Maceió, AL 57038-770, Brazil
| | - Robson G Santos
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Alagoas, Av. Lourival Melo Mota, S/N, Tabuleiro do Martins, Maceió, AL 57072-970, Brazil
| | - Bráulio A Santos
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, Cidade Universitária, Castelo Branco, João Pessoa, PB 58051-900, Brazil.
| |
Collapse
|
33
|
Vidal F, van der Marel ER, Kerr RWF, McElroy C, Schroeder N, Mitchell C, Rosetto G, Chen TTD, Bailey RM, Hepburn C, Redgwell C, Williams CK. Designing a circular carbon and plastics economy for a sustainable future. Nature 2024; 626:45-57. [PMID: 38297170 DOI: 10.1038/s41586-023-06939-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/05/2023] [Indexed: 02/02/2024]
Abstract
The linear production and consumption of plastics today is unsustainable. It creates large amounts of unnecessary and mismanaged waste, pollution and carbon dioxide emissions, undermining global climate targets and the Sustainable Development Goals. This Perspective provides an integrated technological, economic and legal view on how to deliver a circular carbon and plastics economy that minimizes carbon dioxide emissions. Different pathways that maximize recirculation of carbon (dioxide) between plastics waste and feedstocks are outlined, including mechanical, chemical and biological recycling, and those involving the use of biomass and carbon dioxide. Four future scenarios are described, only one of which achieves sufficient greenhouse gas savings in line with global climate targets. Such a bold system change requires 50% reduction in future plastic demand, complete phase-out of fossil-derived plastics, 95% recycling rates of retrievable plastics and use of renewable energy. It is hard to overstate the challenge of achieving this goal. We therefore present a roadmap outlining the scale and timing of the economic and legal interventions that could possibly support this. Assessing the service lifespan and recoverability of plastic products, along with considerations of sufficiency and smart design, can moreover provide design principles to guide future manufacturing, use and disposal of plastics.
Collapse
Affiliation(s)
- Fernando Vidal
- Department of Chemistry, University of Oxford, Oxford, UK
- POLYMAT, University of the Basque Country (UPV/EHU), Donostia-San Sebastian, Spain
| | - Eva R van der Marel
- Faculty of Law, University of Oxford, Oxford, UK
- Faculty of Law, UiT The Arctic University of Norway, Tromsø, Norway
| | - Ryan W F Kerr
- Department of Chemistry, University of Oxford, Oxford, UK
| | - Caitlin McElroy
- Smith School of Enterprise and the Environment, University of Oxford, Oxford, UK
| | - Nadia Schroeder
- Smith School of Enterprise and the Environment, University of Oxford, Oxford, UK
| | - Celia Mitchell
- Smith School of Enterprise and the Environment, University of Oxford, Oxford, UK
| | - Gloria Rosetto
- Department of Chemistry, University of Oxford, Oxford, UK
| | | | - Richard M Bailey
- School of Geography and the Environment, University of Oxford, Oxford, UK
| | - Cameron Hepburn
- Smith School of Enterprise and the Environment, University of Oxford, Oxford, UK.
| | | | | |
Collapse
|
34
|
Gallagher KL, Selig GM, Cimino MA. Descriptions and patterns in opportunistic marine debris collected near Palmer Station, Antarctica. MARINE POLLUTION BULLETIN 2024; 199:115952. [PMID: 38142665 DOI: 10.1016/j.marpolbul.2023.115952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/04/2023] [Accepted: 12/15/2023] [Indexed: 12/26/2023]
Abstract
Observations of marine debris in Antarctica have been increasing; however, impacts, distributions, sources, and transport pathways of debris remain poorly understood. Here, we describe the spatial distribution, types, and potential origins of marine debris in 2022/2023 near Palmer Station, Antarctica. We opportunistically collected 135 pieces of marine debris with the majority of items found along shorelines (90 %), some found in/near seabird nests/colonies (7 %) and few on inland rocky terrain (3 %). Plastic and abandoned, lost, or discarded fishing gear dominated observed debris. Results suggest that wind and the Antarctic Coastal Current may be a major pathway for debris. This study is the first assessment of marine debris in this region and suggests that oceanography, weather patterns, and shoreline geomorphology could play a role in determining where debris will accumulate. Continued tracking of debris and development of structured surveys is important for understanding the impacts of human activities in a biological hotspot.
Collapse
Affiliation(s)
- Katherine L Gallagher
- Institute for Advanced Computational Sciences, Stony Brook University, 100 Nicolls Rd, Stony Brook, New York 11794, USA; School of Marine and Atmospheric Sciences, Stony Brook University, 100 Nicolls Rd, Stony Brook, New York 11794, USA.
| | - Gina M Selig
- Hawai'i Sea Grant Fellow to the National Science Foundation, Office of Polar Programs, Geosciences Directorate, 2415 Eisenhower Avenue Suite W7100, Alexandria, VA 22314 USA.
| | - Megan A Cimino
- Institute of Marine Sciences, University of California Santa Cruz, 1156 High St, Santa Cruz, California, 95064, USA.
| |
Collapse
|
35
|
Haddock SHD, Choy CA. Life in the Midwater: The Ecology of Deep Pelagic Animals. ANNUAL REVIEW OF MARINE SCIENCE 2024; 16:383-416. [PMID: 38231738 DOI: 10.1146/annurev-marine-031623-095435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The water column of the deep ocean is dark, cold, low in food, and under crushing pressures, yet it is full of diverse life. Due to its enormous volume, this mesopelagic zone is home to some of the most abundant animals on the planet. Rather than struggling to survive, they thrive-owing to a broad set of adaptations for feeding, behavior, and physiology. Our understanding of these adaptations is constrained by the tools available for exploring the deep sea, but this tool kit is expanding along with technological advances. Each time we apply a new method to the depths, we gain surprising insights about genetics, ecology, behavior, physiology, diversity, and the dynamics of change. These discoveries show structure within the seemingly uniform habitat, limits to the seemingly inexhaustible resources, and vulnerability in the seemingly impervious environment. To understand midwater ecology, we need to reimagine the rules that govern terrestrial ecosystems. By spending more time at depth-with whatever tools are available-we can fill the knowledge gaps and better link ecology to the environment throughout the water column.
Collapse
Affiliation(s)
- Steven H D Haddock
- Monterey Bay Aquarium Research Institute, Moss Landing, California, USA;
| | - C Anela Choy
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA;
| |
Collapse
|
36
|
Murphy EL, Gerber LR, Rochman CM, Polidoro B. A macroplastic vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168247. [PMID: 37918749 DOI: 10.1016/j.scitotenv.2023.168247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/28/2023] [Accepted: 10/29/2023] [Indexed: 11/04/2023]
Abstract
Plastic pollution is having devastating consequences for marine organisms across the planet. However, the population level effects of macroplastic pollution remain difficult and costly to quantify. As a result, there is a need for alternative approaches to evaluate species risk to plastic pollution and inform management needs. We apply a trait-based framework for macroplastic pollution to develop a relative vulnerability index-informed by three dimensions: likelihood of exposure, species' sensitivity, and population resilience-for marine mammals, seabirds, and sea turtles found in Hawai'i. This index ranks 63 study species based on their population level vulnerability to macroplastic pollution, with the highest scoring species being the most vulnerable. Our results indicate that ducks, waders, and noddies with large populations were the least vulnerable to macroplastics, while the most vulnerable were the Hawaiian monk seal, sea turtles, baleen whales, and some albatross and petrel species. This index can inform species in need of population monitoring in Hawai'i, and direct other management priorities (e.g., locations for clean-ups or booms). More broadly, this work exemplifies the value of qualitative risk assessment approaches for better understanding the population level effects of macroplastic pollution and showcases how vulnerability indices can be used to inform management priorities.
Collapse
Affiliation(s)
- Erin L Murphy
- School of Life Sciences, Arizona State University, Tempe Campus, Life Sciences Center A Wing 451 E Tyler Mall, Room 209, Tempe, AZ 85281, United States of America; Center for Biodiversity Outcomes, Arizona State University, Tempe Camus, Life Sciences Center A Wing 451 E Tyler Mall, Room 351, Tempe, AZ 85281, United States of America; Ecology & Evolutionary Biology, University of Toronto, 25 Wilcocks St, Earth Sciences, Room 3054, Toronto, ON M5S3B2, Canada.
| | - Leah R Gerber
- School of Life Sciences, Arizona State University, Tempe Campus, Life Sciences Center A Wing 451 E Tyler Mall, Room 209, Tempe, AZ 85281, United States of America; Center for Biodiversity Outcomes, Arizona State University, Tempe Camus, Life Sciences Center A Wing 451 E Tyler Mall, Room 351, Tempe, AZ 85281, United States of America
| | - Chelsea M Rochman
- Ecology & Evolutionary Biology, University of Toronto, 25 Wilcocks St, Earth Sciences, Room 3054, Toronto, ON M5S3B2, Canada
| | - Beth Polidoro
- School of Life Sciences, Arizona State University, Tempe Campus, Life Sciences Center A Wing 451 E Tyler Mall, Room 209, Tempe, AZ 85281, United States of America; Center for Biodiversity Outcomes, Arizona State University, Tempe Camus, Life Sciences Center A Wing 451 E Tyler Mall, Room 351, Tempe, AZ 85281, United States of America; School of Mathematical and Natural Sciences, Arizona State University, West Campus, PO Box 37100, Phoenix, AZ 85069-2352, United States of America
| |
Collapse
|
37
|
Zhang Y, Jia Z, Gao X, Zhao J, Zhang H. Polystyrene nanoparticles induced mammalian intestine damage caused by blockage of BNIP3/NIX-mediated mitophagy and gut microbiota alteration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:168064. [PMID: 37884137 DOI: 10.1016/j.scitotenv.2023.168064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 10/01/2023] [Accepted: 10/21/2023] [Indexed: 10/28/2023]
Abstract
Nanoplastics possess the capacity for cellular internalization, and consequentially disrupt mitochondrial functionality, precipitating aberrations in energy metabolism. Given this, the potential accumulation of nanoplastics in alimentary sources presents a considerable hazard to the mammalian gastrointestinal system. While mitophagy serves as a cytoprotective mechanism that sustains redox homeostasis through the targeted removal of compromised mitochondria, the regulatory implications of mitophagy in nanoplastic-induced toxicity remain an underexplored domain. In the present investigation, polystyrene (PS) nanoparticles, with a diameter of 80 nm employed as a representative model to assess their toxicological impact and propensity to instigate mitophagy in intestinal cells both in vitro and in vivo. Data indicated that PS nanoparticles elicited BNIP3/NIX-mediated mitophagy within the intestinal milieu. Strikingly, the impediment of this degradation process at elevated concentrations was correlated with exacerbated pathological ramifications. In vitro assays corroborated that high-dosage cellular uptake of PS nanoparticles obstructed the mitophagy pathway. Furthermore, treatment with PS nanoparticles engendered alterations in gut microbiota composition and manifested a proclivity to modulate nutritional metabolism. Collectively, these findings elucidate that oral exposure to PS nanoparticles culminates in the inhibition of mitophagy and induces perturbations in the intestinal microbiota. This contributes valuable insights into the toxicological repercussions of nanoplastics on mammalian gastrointestinal health.
Collapse
Affiliation(s)
- Yilun Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, Shandong 250014, China
| | - Zhenzhen Jia
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, Shandong 250014, China
| | - Xianlei Gao
- Department of Orthopedic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Juan Zhao
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, Shandong 250014, China
| | - Hongyan Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, Shandong 250014, China.
| |
Collapse
|
38
|
Ramon-Gomez K, Ron SR, Deem SL, Pike KN, Stevens C, Izurieta JC, Nieto-Claudin A. Plastic ingestion in giant tortoises: An example of a novel anthropogenic impact for Galapagos wildlife. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122780. [PMID: 37863249 DOI: 10.1016/j.envpol.2023.122780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 10/22/2023]
Abstract
The human population of Galapagos has rapidly increased in the last decades accelerating the anthropogenic pressures on the archipelago's natural resources. The growing human footprint, including inadequate management of garbage, may lead to conservation conflicts. Here, we assessed the ingestion of debris by Western Santa Cruz giant tortoises (Chelonoidis porteri) within human-modified and protected areas. Additionally, we characterized environmental debris and quantified tortoise abundance together with tortoise fecal samples. We processed a total of 6629 fecal samples along a gradient of anthropogenic disturbance based on human debris presence. We found 590 pieces of debris in samples within human-modified areas (mean of 3.97 items/kg of feces) and only two pieces in the protected area (mean of 0.08 items/kg of feces). Plastic waste was the predominant category in feces within the anthropic area (86.3%; n = 511), followed by cloth, metal, paper, synthetic rubber, construction materials, and glass. On average, the proportion of plastic was higher in feces (84%) than it was in environmental debris (67%), denoting that plastics are more readily ingested than other types of debris. We also found that green, white, and light blue plastics were consumed more often than their prevalence in the environment, suggesting color discrimination. Tortoise abundance was higher in the protected area when compared to the human-modified area; however, recapture rates were higher in anthropized landscapes which increases tortoise exposure to plastics and other human associated threats. Our results indicate that plastics are frequently consumed by tortoises in the polluted anthropic areas of western Santa Cruz, but scarce in protected areas. More research is needed to understand the negative impacts associated with plastics for Galapagos terrestrial species. We encourage local stakeholders to implement current policies limiting expansion of urban areas, plastic use, and improving waste management systems to minimize threats to human and animal health.
Collapse
Affiliation(s)
- Karina Ramon-Gomez
- Charles Darwin Foundation, Charles Darwin Avenue, Santa Cruz, 200350, Galapagos Islands, Ecuador; Museo de Zoología, Escuela de Biología, Facultad de Ciencias Exactas y Naturales, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
| | - Santiago R Ron
- Museo de Zoología, Escuela de Biología, Facultad de Ciencias Exactas y Naturales, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
| | - Sharon L Deem
- Charles Darwin Foundation, Charles Darwin Avenue, Santa Cruz, 200350, Galapagos Islands, Ecuador; Saint Louis Zoo Institute for Conservation Medicine, One Government Drive, Saint Louis, MO, 63110, USA
| | - Kyana N Pike
- College of Science and Engineering, James Cook University, Townsville, 4810, Australia
| | - Colton Stevens
- Charles Darwin Foundation, Charles Darwin Avenue, Santa Cruz, 200350, Galapagos Islands, Ecuador
| | - Juan Carlos Izurieta
- Charles Darwin Foundation, Charles Darwin Avenue, Santa Cruz, 200350, Galapagos Islands, Ecuador
| | - Ainoa Nieto-Claudin
- Charles Darwin Foundation, Charles Darwin Avenue, Santa Cruz, 200350, Galapagos Islands, Ecuador; Saint Louis Zoo Institute for Conservation Medicine, One Government Drive, Saint Louis, MO, 63110, USA; Complutense University of Madrid, Veterinary Faculty, Puerta de Hierro Av, Madrid, 28040, Spain.
| |
Collapse
|
39
|
Qian G, Zhang L, Chen Y, Xu C. Fish microplastic ingestion may induce tipping points of aquatic ecosystems. J Anim Ecol 2024; 93:45-56. [PMID: 37970633 DOI: 10.1111/1365-2656.14027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/01/2023] [Indexed: 11/17/2023]
Abstract
Microplastics can be ingested by a wide range of aquatic animals. Extensive studies have demonstrated that microplastic ingestion-albeit often not lethal-can affect a range of species life-history traits. However, it remains unclear how the sublethal effects of microplastics on individual levels scale up to influence ecosystem-level dynamics through cascading trophic interactions. Here we employ a well-studied, empirically fed three-species trophic chain model, which was parameterized to mimic a common type of aquatic ecosystems to examine how microplastic ingestion by fish on an intermediate trophic level can produce cascading effects on the species at both upper and lower trophic levels. We show that gradually increasing microplastics in the ingested substances of planktivorous fish may cause population structure effects such as skewed size distributions (i.e. reduced average body length vs. increased maximal body size), and induce abrupt declines in fish biomass and reproduction. Our model analysis demonstrates that these abrupt changes correspond to an ecosystem-level tipping point, crossing which difficult-to-reverse ecosystem degradation can happen. Importantly, microplastic pollution may interact with other anthropogenic stressors to reduce safe operating space of aquatic ecosystems. Our work contributes to better understanding complex effects of microplastic pollution and anticipating tipping points of aquatic ecosystems in a changing world. It also calls attention to an emerging threat that novel microplastic contaminants may lead to unexpected and abrupt degradation of aquatic ecosystems, and invites systematic studies on the ecosystem-level consequences of microplastic exposure.
Collapse
Affiliation(s)
- Guangjing Qian
- School of Mathematical Science, Yangzhou University, Yangzhou, China
| | - Lai Zhang
- School of Mathematical Science, Yangzhou University, Yangzhou, China
| | - Yuxin Chen
- School of Mathematical Science, Yangzhou University, Yangzhou, China
| | - Chi Xu
- School of Life Sciences, Nanjing University, Nanjing, China
| |
Collapse
|
40
|
Søgaard Jørgensen P, Jansen REV, Avila Ortega DI, Wang-Erlandsson L, Donges JF, Österblom H, Olsson P, Nyström M, Lade SJ, Hahn T, Folke C, Peterson GD, Crépin AS. Evolution of the polycrisis: Anthropocene traps that challenge global sustainability. Philos Trans R Soc Lond B Biol Sci 2024; 379:20220261. [PMID: 37952617 PMCID: PMC10645130 DOI: 10.1098/rstb.2022.0261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 08/22/2023] [Indexed: 11/14/2023] Open
Abstract
The Anthropocene is characterized by accelerating change and global challenges of increasing complexity. Inspired by what some have called a polycrisis, we explore whether the human trajectory of increasing complexity and influence on the Earth system could become a form of trap for humanity. Based on an adaptation of the evolutionary traps concept to a global human context, we present results from a participatory mapping. We identify 14 traps and categorize them as either global, technology or structural traps. An assessment reveals that 12 traps (86%) could be in an advanced phase of trapping with high risk of hard-to-reverse lock-ins and growing risks of negative impacts on human well-being. Ten traps (71%) currently see growing trends in their indicators. Revealing the systemic nature of the polycrisis, we assess that Anthropocene traps often interact reinforcingly (45% of pairwise interactions), and rarely in a dampening fashion (3%). We end by discussing capacities that will be important for navigating these systemic challenges in pursuit of global sustainability. Doing so, we introduce evolvability as a unifying concept for such research between the sustainability and evolutionary sciences. This article is part of the theme issue 'Evolution and sustainability: gathering the strands for an Anthropocene synthesis'.
Collapse
Affiliation(s)
- Peter Søgaard Jørgensen
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
- Global Economic Dynamics and the Biosphere Programme, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
- Anthropocene Laboratory, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
| | - Raf E. V. Jansen
- Global Economic Dynamics and the Biosphere Programme, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
| | - Daniel I. Avila Ortega
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
- Global Economic Dynamics and the Biosphere Programme, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
| | - Lan Wang-Erlandsson
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
- Anthropocene Laboratory, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
- Potsdam Institute for Climate Impact Research, Member of the Leibnitz Association, 14473 Potsdam, Germany
| | - Jonathan F. Donges
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
- Potsdam Institute for Climate Impact Research, Member of the Leibnitz Association, 14473 Potsdam, Germany
| | - Henrik Österblom
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
- Anthropocene Laboratory, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
| | - Per Olsson
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Magnus Nyström
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Steven J. Lade
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
- Fenner School of Environment & Society, Australian National University, Canberra 2601, Australia
| | - Thomas Hahn
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Carl Folke
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
- Global Economic Dynamics and the Biosphere Programme, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
- Anthropocene Laboratory, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
- Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
| | - Garry D. Peterson
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Anne-Sophie Crépin
- Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
- Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
| |
Collapse
|
41
|
Zhang P, Wang J, Huang L, He M, Yang H, Song G, Zhao J, Li X. Microplastic transport during desertification in drylands: Abundance and characterization of soil microplastics in the Amu Darya-Aral Sea basin, Central Asia. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119353. [PMID: 37866184 DOI: 10.1016/j.jenvman.2023.119353] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
Desertification and microplastic pollution are major environmental issues that impact the function of the ecosystem and human well-being of drylands. Land desertification may influence soil microplastics' abundance, transport, and distribution, but their distribution in the dryland deserts of Central Asia's Amu Darya-Aral Sea basin is unknown. Here, we investigated the abundance and distribution of microplastics in dryland desert soils from the Amu Darya River to the Aral Sea basin in Central Asia at a spatial scale of 1000 km and soil depths ranging from 0 to 50 cm. Microplastics were found in soils from all sample locations, with abundances ranging from 182 to 17841 items kg-1 and a median of 3369. Twenty-four polymers were identified, with polyurethane (PU, 37.3%), silicone resin (SR, 17.0%), and chlorinated polyethylene (CPE, 9.8%) accounting for 64.1% of all polymer types. The abundance of microplastics was significantly higher in deep (20-50 cm) soils than in surface (0-5, 5-20 cm) soils. The main morphological characteristics of the observed microplastics were small size (20-50 μm) and irregular particles with no round edges (mean eccentricity 0.65). The abundance was significantly and positively related to soil EC and TP. According to the findings, desertification processes increase the abundance of microplastic particles in soils and promote migration to deeper soil layers. Human activities, mainly grazing, may be the region's primary cause of desertification and microplastic pollution. Our findings provide new information on the diffusion of microplastics in drylands during desertification; these findings are critical for understanding and promoting dryland plastic pollution prevention and control.
Collapse
Affiliation(s)
- Peng Zhang
- Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
| | - Jin Wang
- Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; College of Life Sciences, Shaanxi Normal University, Xi'an, 710119, China
| | - Lei Huang
- Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Mingzhu He
- Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Haotian Yang
- Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Guang Song
- Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Jiecai Zhao
- Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Xinrong Li
- Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
| |
Collapse
|
42
|
Yuan B, Gan W, Sun J, Lin B, Chen Z. Depth profiles of microplastics in sediments from inland water to coast and their influential factors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166151. [PMID: 37562610 DOI: 10.1016/j.scitotenv.2023.166151] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/19/2023] [Accepted: 08/06/2023] [Indexed: 08/12/2023]
Abstract
Microplastics, plastic particles with a size smaller than 5 mm, are widely observed in the global environments and pose a growing threat as they accumulate and affect the environments in numerous ways. These particles can be transported from inland water to coast and disperse from surface water to deep sediments, especially the latter, while knowledge of the hidden microplastics in sediment layers is still lacking. Understanding the characteristics and behavior of microplastics in deep sediments from inland water to coast is crucial for estimating the present and future global plastic budget from land to seas. Herein, present knowledge of microplastic sedimentation from inland water to coast is reviewed, with a focus on the physical characteristics of microplastics and environmental factors that affect sedimentation. The abundance, shape, composition, and timeline of microplastics in sediment layers in rivers, floodplains, lakes, estuaries and coastal wetlands are presented. The abundance of microplastics in sediment layers varies across sites and may exhibit opposite trends along depth, and generally the proportion of relatively small microplastics increases with depth, while less is known about the vertical trends in the shape and composition of microplastics. Timeline of microplastics is generally linked to the sedimentation rate, which varies from millimeters to centimeters per year in the reviewed studies. The spatiotemporal characteristics of microplastic sedimentation depend on the settling and erosion of microplastics, which are determined by two aspects, microplastic characteristics and environmental factors. The former aspect includes size, shape and density influenced by aggregation and biofouling, and the latter includes dynamic forces, topographic features, bioturbation and human activities. The comprehensive review of these factors highlights the needs to further quantify the characteristics of microplastic sedimentation and explore the role of these factors in microplastic sedimentation on various spatiotemporal scales.
Collapse
Affiliation(s)
- Bing Yuan
- School of Civil Engineering, Sun Yat-sen University, 519082 Zhuhai, China; State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, 100084 Beijing, China
| | - Wenhui Gan
- School of Civil Engineering, Sun Yat-sen University, 519082 Zhuhai, China
| | - Jian Sun
- State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, 100084 Beijing, China.
| | - Binliang Lin
- State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, 100084 Beijing, China
| | - Zhihe Chen
- School of Civil Engineering, Sun Yat-sen University, 519082 Zhuhai, China.
| |
Collapse
|
43
|
Yang W, Tan Q, Qian S, Huang Y, Xu EG, Long X, Li W. Natural infochemical DMSP stimulates the transfer of microplastics from freshwater zooplankton to fish: An olfactory trap. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 265:106735. [PMID: 37984150 DOI: 10.1016/j.aquatox.2023.106735] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/20/2023] [Accepted: 10/26/2023] [Indexed: 11/22/2023]
Abstract
Natural infochemicals may largely affect the trophic transfer of microplastics (MPs) in ecosystems but such infochemical effect and mechanisms are poorly understood. Here, a daphnids-zebrafish freshwater microcosm was designed to elucidate whether and how an algae-derived infochemical, dimethylsulfoniopropionate (DMSP), affects the ingestion and transfer of MPs. Daphnids fast accumulated DMSP and MPs from water, and DMSP in daphnids was mainly enriched from the DMSP in water but not from MPs. DMSP did not change the MP ingestion by daphnids. A low concentration of DMSP (0.5 nM) increased predation of daphnids by zebrafish, while high concentrations of DMSP (50, 100 and 200 nM) did not increase predation rates. The concentration of DMSP in daphnids and the MP predation by zebrafish showed a unimodal relationship. The predation for MP by zebrafish in the 0.5 and 5 nM DMSP treatments was 1.89 and 1.56 times that of the control, respectively. The concentrations of DMSP in freshwater samples were lower than 50 nM. This suggests DMSP at environmentally relevant concentrations may promote the trophic transfer of MPs in freshwater ecosystems via olfactory traps.
Collapse
Affiliation(s)
- Wei Yang
- Department of Ecological Sciences and Engineering, Chongqing University, Chongqing 400045, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Qian Tan
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou, 510006, China
| | - Shenhua Qian
- Department of Ecological Sciences and Engineering, Chongqing University, Chongqing 400045, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Yuyue Huang
- Department of Biology, University of Southern Denmark, Odense, 5230, Denmark
| | - Elvis Genbo Xu
- Department of Biology, University of Southern Denmark, Odense, 5230, Denmark
| | - Xizi Long
- Hunan Province Key Laboratory of Typical Environ. Pollut. and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Wei Li
- Department of Ecological Sciences and Engineering, Chongqing University, Chongqing 400045, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
| |
Collapse
|
44
|
Lin J, Zhan G, Liu J, Maimaitiyiming Y, Deng Z, Li B, Su K, Chen J, Sun S, Zheng W, Yu X, He F, Cheng X, Wang L, Shen B, Yao Z, Yang X, Zhang J, He W, Wu H, Naranmandura H, Chang KJ, Min J, Ma J, Björklund M, Xu PF, Wang F, Hsu CH. YTHDF2-mediated regulations bifurcate BHPF-induced programmed cell deaths. Natl Sci Rev 2023; 10:nwad227. [PMID: 38152479 PMCID: PMC10751878 DOI: 10.1093/nsr/nwad227] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 12/29/2023] Open
Abstract
N6-methyladenosine (m6A) is a critical regulator in the fate of RNA, but whether and how m6A executes its functions in different tissues remains largely obscure. Here we report downregulation of a crucial m6A reader, YTHDF2, leading to tissue-specific programmed cell deaths (PCDs) upon fluorene-9-bisphenol (BHPF) exposure. Currently, Bisphenol A (BPA) substitutes are widely used in plastic manufacturing. Interrogating eight common BPA substitutes, we detected BHPF in 14% serum samples of pregnant participants. In a zebrafish model, BHPF caused tissue-specific PCDs triggering cardiac and vascular defects. Mechanistically, BHPF-mediated downregulation of YTHDF2 reduced YTHDF2-facilitated translation of m6A-gch1 for cardiomyocyte ferroptosis, and decreased YTHDF2-mediated m6A-sting1 decay for caudal vein plexus (CVP) apoptosis. The two distinct YTHDF2-mediated m6A regulations and context-dependent co-expression patterns of gch1/ythdf2 and tnfrsf1a/ythdf2 contributed to YTHDF2-mediated tissue-specific PCDs, uncovering a new layer of PCD regulation. Since BHPF/YTHDF2-medaited PCD defects were also observed in mammals, BHPF exposure represents a potential health threat.
Collapse
Affiliation(s)
- Jiebo Lin
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Guankai Zhan
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Jinfeng Liu
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou 310058
| | - Yasen Maimaitiyiming
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou 310000
| | - Zhiping Deng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310000
| | - Baohua Li
- Department of Obstetrics, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310000
| | - Kunhui Su
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Jiafeng Chen
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Siqi Sun
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Wanlin Zheng
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
- Zhejiang Provincial Key Lab of Genetic and Developmental Disorders, Hangzhou 310058
| | - Xianghui Yu
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
- Zhejiang Provincial Key Lab of Genetic and Developmental Disorders, Hangzhou 310058
| | - Feng He
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
- Zhejiang Provincial Key Lab of Genetic and Developmental Disorders, Hangzhou 310058
| | - Xiaodong Cheng
- Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310000
| | - Lingfang Wang
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310000
| | - Bin Shen
- State Key Laboratory of Reproductive Medicine, Center for Global Health, Gusu School, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing 211166
| | - Ziqin Yao
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou 310058
- The First Affiliated Hospital, Basic Medical Sciences, School of Public Health, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001
| | - Xinquan Yang
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou 310058
- The First Affiliated Hospital, Basic Medical Sciences, School of Public Health, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001
| | - Jian Zhang
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Wentao He
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Hengyu Wu
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| | - Hua Naranmandura
- Department of Hematology of First Affiliated Hospital, and Department of Public Health, Zhejiang University School of Medicine, Hangzhou 310000
| | - Kao-Jung Chang
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217
| | - Junxia Min
- The First Affiliated Hospital, Institute of Translational Medicine, Cancer Center, Zhejiang University School of Medicine, Hangzhou 310058
| | - Jun Ma
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
- Zhejiang Provincial Key Lab of Genetic and Developmental Disorders, Hangzhou 310058
| | - Mikael Björklund
- Zhejiang University-University of Edinburgh (ZJU-UoE) Institute, Haining 314400
- University of Edinburgh Medical School, Biomedical Sciences, College of Medicine & Veterinary Medicine, University of Edinburgh, Edinburgh, EH8 9JZ
| | - Peng-Fei Xu
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
- Women's Hospital, and Institute of Genetics, Zhejiang University School of Medicine, Hangzhou 310000
| | - Fudi Wang
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou 310058
- The First Affiliated Hospital, Basic Medical Sciences, School of Public Health, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421001
| | - Chih-Hung Hsu
- Women's Hospital, The Fourth Affiliated Hospital, and Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou 310006
- Institute of Genetics, International School of Medicine, Zhejiang University, Yiwu 322000
| |
Collapse
|
45
|
Xie M, Lv M, Zhao Z, Li L, Jiang H, Yu Y, Zhang X, Liu P, Chen J. Plastisphere characterization in habitat of the highly endangered Shinisaurus crocodilurus: Bacterial composition, assembly, function and the comparison with surrounding environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165807. [PMID: 37506917 DOI: 10.1016/j.scitotenv.2023.165807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/15/2023] [Accepted: 07/24/2023] [Indexed: 07/30/2023]
Abstract
Plastisphere is a new niche for microorganisms that complicate the ecological effects of plastics, and may profoundly influence biodiversity and habitat conservation. The DaGuishan National Nature Reserve, one of the largest habitats of the highly endangered crocodile lizard (Shinisaurus crocodilurus), is experiencing plastic pollution without sufficient attention. Here, plastisphere collected from captive tanks of crocodile lizards in this nature reserve was characterized for the first time. Three types of plastic (PE-PP, PE1, and PE2) together with the surrounding water and soil samples, were collected, and 16S rRNA sequencing technology was used to characterize the bacterial composition. The results demonstrated that plastisphere was driven by stochastic process and had a distinct bacterial community with higher diversity than that in surrounding water (p < 0.05). Bacteria related to nitrogen and carbon cycles (Pseudomonas psychrotolerans, Methylobacterium-Methylorubrum) were more abundant in plastisphere than in water or soil (p < 0.05). More importantly, plastics recruited pathogens and those bacteria function in antibiotic resistant genes (ARGs) coding. Bacteria related to polymer degradation also proliferated in plastisphere, especially Bacillus subtilis with a fold change of 42.01. The PE2 plastisphere, which had the lowest diversity and was dominated by Methylobacterium-Methylorubrum differed from PE 1 and PE-PP plastispheres totally. Plastics' morphology and aquatic nutrient levels contributed to the heterogeneity of different plastispheres. Overall, this study demonstrated that plastispheres diversify in composition and function, affecting ecosystem services directly or indirectly. Pathogens and bacteria related to ARGs expression enriched in the plastisphere should not be ignored because they may threaten the health of crocodile lizards by increasing the risk of infection. Plastic pollution control should be included in conservation efforts for crocodile lizards. This study provides new insights into the potential impacts of plastisphere, which is important for ecological risk assessments of plastic pollution in the habitats of endangered species.
Collapse
Affiliation(s)
- Mujiao Xie
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Mei Lv
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Zhiwen Zhao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Linmiao Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Haiying Jiang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Yepin Yu
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Xiujuan Zhang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Ping Liu
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Jinping Chen
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China.
| |
Collapse
|
46
|
Matos DM, Ramos JA, Bessa F, Silva V, Rodrigues I, Antunes S, Dos Santos I, Coentro J, Brandão ALC, Batista de Carvalho LAE, Marques MPM, Santos S, Paiva VH. Anthropogenic debris ingestion in a tropical seabird community: Insights from taxonomy and foraging distribution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 898:165437. [PMID: 37437636 DOI: 10.1016/j.scitotenv.2023.165437] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/20/2023] [Accepted: 07/08/2023] [Indexed: 07/14/2023]
Abstract
Oceans have been considered as an unlimited supply of goods and services, but resource extraction and waste disposal became ubiquitous and have been damaging the health of marine ecosystems. Finding suitable sentinel species of the human impacts on the oceans is thus imperative, since they may work as early warnings of disruptive situations. In this study, we investigated how taxonomy and foraging distribution influenced the occurrence of anthropogenic debris among five seabird species inhabiting the tropical Atlantic region. Occurrence of anthropogenic debris was assessed using faeces of breeding individuals as a proxy of ingestion. A total of 268 particles were extracted from all samples. The categories "fragments" and "fibres", as well as the colour "blue", were the most prevalent characteristics across species. There was a high diversity of polymers from cellulosic particles to synthetic plastics (Anthropogenic Cellulosic 26.9 %; Polyester 7.7 %; Varnish 5.8 %; Polypropylene 1.9 %). Species with a more coastal foraging strategy exhibited higher occurrence and number of anthropogenic debris when compared to species foraging comparably more in pelagic areas. This suggests that anthropogenic debris are more prevalent in coastal foraging areas, where human activities occur in higher number and frequency (e.g., fisheries) and sources of freshwater input from inland are at close distance. These results provide more evidence to the growing perception on the ubiquity and diversity of anthropogenic debris in the marine environment, and further support the usefulness of using seabirds as bio-indicators of anthropogenic pollution in both neritic and oceanic regions.
Collapse
Affiliation(s)
- D M Matos
- University of Coimbra, MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal.
| | - J A Ramos
- University of Coimbra, MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Filipa Bessa
- University of Coimbra, MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Vítor Silva
- University of Coimbra, MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Isabel Rodrigues
- Biosfera Cabo Verde, Sul do Cemitério, Rua 5 - Caixa Postal 233, São Vicente, Cabo Verde
| | - Stefan Antunes
- Biosfera Cabo Verde, Sul do Cemitério, Rua 5 - Caixa Postal 233, São Vicente, Cabo Verde
| | - I Dos Santos
- University of Coimbra, MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - João Coentro
- University of Coimbra, MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - A L C Brandão
- University of Coimbra, Molecular Physical-Chemistry R&D Unit, Department of Chemistry, 3004-535 Coimbra, Portugal
| | - L A E Batista de Carvalho
- University of Coimbra, Molecular Physical-Chemistry R&D Unit, Department of Chemistry, 3004-535 Coimbra, Portugal
| | - M P M Marques
- University of Coimbra, Molecular Physical-Chemistry R&D Unit, Department of Chemistry, 3004-535 Coimbra, Portugal; University of Coimbra, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Sara Santos
- University of Coimbra, MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - V H Paiva
- University of Coimbra, MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| |
Collapse
|
47
|
Brawn C, Hamilton BM, Savoca MS, Bardarson B, Vermaire JC, Provencher J. Suspected anthropogenic microparticle ingestion by Icelandic capelin. MARINE POLLUTION BULLETIN 2023; 196:115551. [PMID: 37769403 DOI: 10.1016/j.marpolbul.2023.115551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 08/22/2023] [Accepted: 09/13/2023] [Indexed: 09/30/2023]
Abstract
Documented ingestion of microplastics and other anthropogenic microparticles (AMP) by marine fishes has increased over the last decade. However, baseline datasets on AMP ingestion in Arctic fish species are limited. This study documents AMP ingestion in Icelandic capelin (Mallotus villosus) and investigates how this relates to several biological variables. A total of 160 capelin gastrointestinal tracts were sampled and digested using 10 % potassium hydroxide and visual inspection protocols. A total frequency of occurrence (%FO) of 52.5 % and a mean AMP abundance of 1.33 ± 2.37 per individual was found (particles > 45 μm). The colour of AMP detected was significantly different between sampling locations. However, no differences in %FO or mean AMP abundance were detected between sampling locations or related to body size, gut fullness, or sex. This research contributes to the growing body of knowledge on AMP ingestion by Arctic marine species.
Collapse
Affiliation(s)
- Caitlin Brawn
- University Centre of the Westfjords, Ísafjörður 400, Iceland.
| | - Bonnie M Hamilton
- University of Toronto, Dept. Ecology and Evolutionary Biology, Toronto, ON M5S 3B2, Canada
| | - Matthew S Savoca
- Hopkins Marine Station, Department of Oceans, Stanford University, California, USA
| | - Birkir Bardarson
- Marine and Freshwater Research Institute, Reykjavík 220, Iceland
| | - Jesse C Vermaire
- Aquatic Ecosystems and Environmental Change Laboratory, Department of Geography and Environmental Studies and Institute for Environmental and Interdisciplinary Sciences, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - Jennifer Provencher
- Environment Climate Change Canada, Science and Technology Branch, Ottawa, ON K1S 5B6, Canada
| |
Collapse
|
48
|
Cozzolino L, Nicastro KR, Lefebvre S, Corona L, Froneman PW, McQuaid C, Zardi GI. The effect of interspecific and intraspecific diversity on microplastic ingestion in two co-occurring mussel species in South Africa. MARINE POLLUTION BULLETIN 2023; 196:115649. [PMID: 37864858 DOI: 10.1016/j.marpolbul.2023.115649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/19/2023] [Accepted: 10/07/2023] [Indexed: 10/23/2023]
Abstract
Interspecific and intraspecific diversity are essential components of biodiversity with far-reaching implications for ecosystem function and service provision. Importantly, genotypic and phenotypic variation within a species can affect responses to anthropogenic pressures more than interspecific diversity. We investigated the effects of interspecific and intraspecific diversity on microplastic ingestion by two coexisting mussel species in South Africa, Mytilus galloprovincialis and Perna perna, the latter occurring as two genetic lineages. We found significantly higher microplastic abundance in M. galloprovincialis (0.54 ± 0.56 MP items g-1WW) than P. perna (0.16 ± 0.21 MP items g-1WW), but no difference between P. perna lineages. Microbeads were the predominant microplastic (76 % in P. perna, 99 % in M. galloprovincialis) and polyethylene the prevalent polymer. Interspecific differences in microplastic abundance varied across locations, suggesting diverse sources of contamination. We suggest that microplastic ingestion can be species-specific even in organisms that coexist and play similar functional roles within ecosystems.
Collapse
Affiliation(s)
- Lorenzo Cozzolino
- CCMAR-Centro de Ciências do Mar, CIMAR Laboratório Associado, Universidade do Algarve, Campus de Gambelas, Faro 8005-139, Portugal.
| | - Katy R Nicastro
- CCMAR-Centro de Ciências do Mar, CIMAR Laboratório Associado, Universidade do Algarve, Campus de Gambelas, Faro 8005-139, Portugal; Department of Zoology and Entomology, Rhodes University, Grahamstown 6140, South Africa; Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, station marine de Wimereux, F-59000 Lille, France
| | - Sebastien Lefebvre
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, station marine de Wimereux, F-59000 Lille, France
| | - Luana Corona
- CCMAR-Centro de Ciências do Mar, CIMAR Laboratório Associado, Universidade do Algarve, Campus de Gambelas, Faro 8005-139, Portugal
| | | | - Christopher McQuaid
- Department of Zoology and Entomology, Rhodes University, Grahamstown 6140, South Africa
| | - Gerardo I Zardi
- CCMAR-Centro de Ciências do Mar, CIMAR Laboratório Associado, Universidade do Algarve, Campus de Gambelas, Faro 8005-139, Portugal; Normandie Université, UNICAEN, Laboratoire Biologie des Organismes et Ecosystèmes Aquatiques, UMR 8067 BOREA (CNRS, MNHN, UPMC, UCBN, IRD-207), CS 14032, 14000 Caen, France; Department of Zoology and Entomology, Rhodes University, Grahamstown 6140, South Africa
| |
Collapse
|
49
|
Moreira-Mendieta A, Garcia-Garin O, Muñoz-Pérez JP, Urquía DO, Drago M, Borrell A, Páez-Rosas D. Detection and quantification of microplastic pollution in the endangered Galapagos sea lion. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:166223. [PMID: 37586531 DOI: 10.1016/j.scitotenv.2023.166223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/18/2023]
Abstract
Marine debris pollution poses a significant global threat to biodiversity, with plastics being the primary debris type found in oceans due to their low-cost production and high demand worldwide. Microplastics (MPs, <5 mm in size) are highly bioavailable to a wide range of marine taxa, including marine mammals, through direct and indirect ingestion routes (i.e., trophic transfer). Recently, MP pollution has been detected on the Galapagos Marine Reserve, so in this study we developed a baseline framework for MP pollution in the Galapagos sea lion (GSL, Zalophus wollebaeki) through scat-based analysis. We collected 180 GSL scat samples from the southeast region following strict quality assurance/quality control protocols to detect, quantify and characterize physical-chemical properties of MPs through visual observations and μFT-IR spectroscopy. We recovered 81 MPs of varying sizes and colors in 37 % of samples (n = 66/180), consisting mostly of fibers (69 %, x¯ = 0.31 ± 0.57 particles scat-1). The number of particles per gram of sample wet weight ranged from 0.02 to 0.22 (x¯ = 0.04 ± 0.05 particles scat wet g-1). El Malecón and Punta Pitt rookeries at San Cristobal Island had the highest number of MPs (x¯ = 0.67 ± 0.51 and 0.43 ± 0.41 particles scat-1, respectively), and blue-colored particles were the most common in all samples. We identified eleven polymers in 46 particles, consisting mostly of polypropylene-polyethylene copolymer, polypropylene, cellulose, polyethylene, and polyvinyl chloride. The textile, fishing, and packaging industries are likely significant sources of microfibers into this insular ecosystem. Our results suggest that the GSL is exposed to MPs due to anthropogenic contamination that is subsequently transferred through trophic processes. These findings provide an important baseline framework and insights for future research on MP pollution in the region, as well as for management actions that will contribute to the long-term conservation of the GSL.
Collapse
Affiliation(s)
- Andrés Moreira-Mendieta
- Universidad San Francisco de Quito USFQ, Maestría en Ecología Tropical y Conservación, Diego de Robles s/n y Pampite, Quito, Ecuador; Universidad San Francisco de Quito USFQ, Galapagos Science Center, Av. Alsacio Northia s/n, Isla San Cristóbal, Galápagos, Ecuador.
| | - Odei Garcia-Garin
- Universitat de Barcelona, Department of Evolutionary Biology, Ecology and Environmental Sciences, Barcelona 08028, Spain; Universitat de Barcelona, Institute of Biodiversity Research (IRBio), Barcelona 08028, Spain
| | - Juan Pablo Muñoz-Pérez
- Universidad San Francisco de Quito USFQ, Galapagos Science Center, Av. Alsacio Northia s/n, Isla San Cristóbal, Galápagos, Ecuador; University of the Sunshine Coast UniSC, School of Science, Technology and Engineering, Hervey Bay, Queensland, Australia
| | - Diego O Urquía
- Universidad San Francisco de Quito USFQ, Maestría en Ecología Tropical y Conservación, Diego de Robles s/n y Pampite, Quito, Ecuador; Universidad San Francisco de Quito USFQ, Galapagos Science Center, Av. Alsacio Northia s/n, Isla San Cristóbal, Galápagos, Ecuador
| | - Massimiliano Drago
- Universitat de Barcelona, Department of Evolutionary Biology, Ecology and Environmental Sciences, Barcelona 08028, Spain; Universitat de Barcelona, Institute of Biodiversity Research (IRBio), Barcelona 08028, Spain
| | - Asunción Borrell
- Universitat de Barcelona, Department of Evolutionary Biology, Ecology and Environmental Sciences, Barcelona 08028, Spain; Universitat de Barcelona, Institute of Biodiversity Research (IRBio), Barcelona 08028, Spain
| | - Diego Páez-Rosas
- Universidad San Francisco de Quito USFQ, Galapagos Science Center, Av. Alsacio Northia s/n, Isla San Cristóbal, Galápagos, Ecuador; Dirección del Parque Nacional Galápagos, Unidad Técnica Operativa San Cristóbal, Isla San Cristóbal, Galápagos, Ecuador
| |
Collapse
|
50
|
Merrill GB, Hermabessiere L, Rochman CM, Nowacek DP. Microplastics in marine mammal blubber, melon, & other tissues: Evidence of translocation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 335:122252. [PMID: 37541381 DOI: 10.1016/j.envpol.2023.122252] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/20/2023] [Accepted: 07/22/2023] [Indexed: 08/06/2023]
Abstract
Marine mammals consume large quantities of microplastic particles, likely via trophic transfer (i.e., through prey who have consumed plastic) and direct consumption from seawater or sediment. Microplastics have been found in the stomachs, gastro-intestinal tracts, and feces of cetaceans and pinnipeds. Translocation of ingested microplastics has been documented in other organs of several aquatic species, but has not been examined in marine mammals. Marine mammals have highly specialized lipid-rich tissues which may increase susceptibility to lipophilic microplastics. Here we demonstrate the occurrence of microplastics, ranging in size, mass concentration, and particle count concentration from 24.4 μm - 1387 μm, 0.59 μg/g - 25.20 μg/g, and 0.04 - 0.39 particles/g, respectively, in four tissues (acoustic fat pad, blubber, lung, & melon) from twelve marine mammal species inclusive of mysticetes, odontocetes, and phocids. Twenty-two individuals were examined for microplastics using a combination of Raman spectroscopy and pyrolysis gas chromatography with mass spectrometry. Overall, 68% of individuals had at least one microplastic particle in at least one of the four tissue types, with the most common polymer and shape observed being polyethylene and fibers, respectively. These findings suggest some proportion of ingested microplastics translocate throughout marine mammal bodies posing an exposure risk to both marine mammals and people. For people, exposure could be directly through consumption for those who rely on marine mammals as food and indirectly to peoples globally who consume the same prey resources as marine mammals. Some individuals examined represent samples obtained over two decades ago, suggesting that this process, and thus exposure risk, has occurred for some time.
Collapse
Affiliation(s)
- Greg B Merrill
- Duke University Marine Lab, Nicholas School of the Environment, Duke University, Durham, United States.
| | - Ludovic Hermabessiere
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
| | - Chelsea M Rochman
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
| | - Douglas P Nowacek
- Duke University Marine Lab, Nicholas School of the Environment, Duke University, Durham, United States
| |
Collapse
|