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Albaseer SS, Al-Hazmi HE, Kurniawan TA, Xu X, Abdulrahman SAM, Ezzati P, Habibzadeh S, Hollert H, Rabiee N, Lima EC, Badawi M, Saeb MR. Microplastics in water resources: Global pollution circle, possible technological solutions, legislations, and future horizon. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:173963. [PMID: 38901599 DOI: 10.1016/j.scitotenv.2024.173963] [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: 04/21/2024] [Revised: 06/09/2024] [Accepted: 06/11/2024] [Indexed: 06/22/2024]
Abstract
Beneath the surface of our ecosystems, microplastics (MPs) silently loom as a significant threat. These minuscule pollutants, invisible to the naked eye, wreak havoc on living organisms and disrupt the delicate balance of our environment. As we delve into a trove of data and reports, a troubling narrative unfolds: MPs pose a grave risk to both health and food chains with their diverse compositions and chemical characteristics. Nevertheless, the peril extends further. MPs infiltrate the environment and intertwine with other pollutants. Worldwide, microplastic levels fluctuate dramatically, ranging from 0.001 to 140 particles.m-3 in water and 0.2 to 8766 particles.g-1 in sediment, painting a stark picture of pervasive pollution. Coastal and marine ecosystems bear the brunt, with each organism laden with thousands of microplastic particles. MPs possess a remarkable ability to absorb a plethora of contaminants, and their environmental behavior is influenced by factors such as molecular weight and pH. Reported adsorption capacities of MPs vary greatly, spanning from 0.001 to 12,700 μg·g-1. These distressing figures serve as a clarion call, demanding immediate action and heightened environmental consciousness. Legislation, innovation, and sustainable practices stand as indispensable defenses against this encroaching menace. Grasping the intricate interplay between microplastics and pollutants is paramount, guiding us toward effective mitigation strategies and preserving our health ecosystems.
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Affiliation(s)
- Saeed S Albaseer
- Institute of Ecology, Evolution and Diversity, Department Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt, Max-von-Laue-Straße 13, 60438 Frankfurt am Main, Germany
| | - Hussein E Al-Hazmi
- Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, Gdańsk, Poland.
| | | | - Xianbao Xu
- Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, Gdańsk, Poland
| | - Sameer A M Abdulrahman
- Department of Chemistry, Faculty of Education and Sciences-Rada'a, Albaydha University, Albaydha, Yemen
| | - Peyman Ezzati
- ERA Co., Ltd, Science and Technology Center, P.O. Box: 318020, Taizhou, Zhejiang, China
| | - Sajjad Habibzadeh
- Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Henner Hollert
- Institute of Ecology, Evolution and Diversity, Department Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt, Max-von-Laue-Straße 13, 60438 Frankfurt am Main, Germany
| | - Navid Rabiee
- Department of Biomaterials, Saveetha Dental College and Hospitals, SIMATS, Saveetha University, Chennai 600077, India
| | - Eder C Lima
- Institute of Chemistry - Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
| | - Michael Badawi
- Université de Lorraine, CNRS, Laboratoire Lorrain de Chimie Moléculaire, F-57000 Metz, France
| | - Mohammad Reza Saeb
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, J. Hallera 107, 80-416 Gdańsk, Poland.
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Siwach S, Bharti M, Yadav S, Dolkar P, Modeel S, Yadav P, Negi T, Negi RK. Unveiling the ecotoxicological impact of microplastics on organisms - the persistent organic pollutant (POP): A comprehensive review. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 266:104397. [PMID: 39059355 DOI: 10.1016/j.jconhyd.2024.104397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 05/17/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024]
Abstract
Microplastics have been ubiquitous in our environment for decades, and numerous studies have revealed their extensive dispersion, reaching far beyond the surface of the land, soil, aquatic ecosystems. They have infiltrated the food-chain, the food web, even the air we breathe, as well as the water we drink. Microplastics have been detected in the food we consume, acting as vectors for hazardous chemicals that adhere to their hydrophobic surfaces. This can result in the transfer of these chemicals to the aquatic life, posing a threat to their well-being. The release of microplastics into different environmental settings can give rise to various eco-toxicological implications. The substantial body of literature has led scientists to the consensus that microplastic pollution is a global problem with the potential to impact virtually any type of ecosystem. This paper aims to discuss crucial information regarding the occurrence, accumulation, and ecological effects of microplastics on organisms. It also highlights the new and emerging disease named "Plasticosis" that is directly linked to microplastics and its toxicological effects like permanent scarring and long-term inflammation in the digestive system of the seabirds. By comprehending the behaviour of these microplastic pollutants in diverse habitats and evaluating their ecological consequences, it becomes possible to facilitate a better understanding of this toxicological issue.
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Affiliation(s)
- Sneha Siwach
- Fish Molecular Biology laboratory, Department of Zoology, University of Delhi, North campus, Delhi 110007, India
| | - Meghali Bharti
- Fish Molecular Biology laboratory, Department of Zoology, University of Delhi, North campus, Delhi 110007, India
| | - Sheetal Yadav
- Fish Molecular Biology laboratory, Department of Zoology, University of Delhi, North campus, Delhi 110007, India
| | - Padma Dolkar
- Fish Molecular Biology laboratory, Department of Zoology, University of Delhi, North campus, Delhi 110007, India
| | - Sonakshi Modeel
- Fish Molecular Biology laboratory, Department of Zoology, University of Delhi, North campus, Delhi 110007, India
| | - Pankaj Yadav
- Fish Molecular Biology laboratory, Department of Zoology, University of Delhi, North campus, Delhi 110007, India
| | - Tarana Negi
- Government College, Dujana, Jhajjar, Haryana 124102, India
| | - Ram Krishan Negi
- Fish Molecular Biology laboratory, Department of Zoology, University of Delhi, North campus, Delhi 110007, India.
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Han X, Pan B, Li D, Liu X, Liu X, Hou Y, Li G. Heterogenization of microplastic communities in lakes of the Qinghai-Tibetan Plateau driven by tourism and transport activities. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135255. [PMID: 39042989 DOI: 10.1016/j.jhazmat.2024.135255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 07/11/2024] [Accepted: 07/17/2024] [Indexed: 07/25/2024]
Abstract
The Qinghai-Tibetan Plateau has a booming tourism industry and an increasingly sophisticated road system. There is a paucity of studies quantifying the contributions of anthropogenic and natural factors to microplastic pollution in remote plateau areas. In this study, water and sediment samples were collected from eight lake tourist attractions and four remote lakes in northern and southern regions of the Qinghai-Tibetan Plateau. Microplastics were detected in all samples, with a mean abundance of 0.78 items/L in water and 44.98 items/kg in sediment. The abundance of microplastics in the study area was lower than previously observed in more populated areas of China. Small-sized (<1 mm and 1-2 mm), fiber, and transparent microplastics were predominant, with polyethylene and polypropylene microplastics as the primary polymer types. The compositions of microplastic communities indicated that tourism and road networks were the major sources of microplastics in the lakes. Distance-decay models revealed greater influence of environmental distances on microplastic community similarity than geographic distance. Compared to climate factors, urban spatial impact intensity and traffic flow impact played a leading role in the structuring of microplastic communities in lake water and sediment. Our findings provide novel quantitative insights into the role of various factors in shaping the distribution patterns of microplastic communities in plateau lakes.
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Affiliation(s)
- Xu Han
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Baozhu Pan
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China.
| | - Dianbao Li
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Xing Liu
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Xinyuan Liu
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Yiming Hou
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
| | - Gang Li
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
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Debnath R, Prasad GS, Amin A, Malik MM, Ahmad I, Abubakr A, Borah S, Rather MA, Impellitteri F, Tabassum I, Piccione G, Faggio C. Understanding and addressing microplastic pollution: Impacts, mitigation, and future perspectives. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 266:104399. [PMID: 39033703 DOI: 10.1016/j.jconhyd.2024.104399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 06/07/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024]
Abstract
Improper disposal of household and industrial waste into water bodies has transformed them into de facto dumping grounds. Plastic debris, weathered on beaches degrades into micro-particles and releases chemical additives that enter the water. Microplastic contamination is documented globally in both marine and freshwater environments, posing a significant threat to aquatic ecosystems. The small size of these particles makes them susceptible to ingestion by low trophic fauna, a trend expected to escalate. Ingestion leads to adverse effects like intestinal blockages, alterations in lipid metabolism, histopathological changes in the intestine, contributing to the extinction of vulnerable species and disrupting ecosystem balance. Notably, microplastics (MPs) can act as carriers for pathogens, potentially causing impaired reproductive activity, decreased immunity, and cancer in various organisms. Studies have identified seven principal sources of MPs, including synthetic textiles (35%) and tire abrasion (28%), highlighting the significant human contribution to this pollution. This review covers various aspects of microplastic pollution, including sources, extraction methods, and its profound impact on ecosystems. Additionally, it explores preventive measures, aiming to guide researchers in selecting techniques and inspiring further investigation into the far-reaching impacts of microplastic pollution, fostering effective solutions for this environmental challenge.
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Affiliation(s)
| | - Gora Shiva Prasad
- Faculty of Fishery Science, WBUAFS, Kolkata -700094, West Bengal, India
| | - Adnan Amin
- Division of Aquatic Environmental Management, Faculty of Fisheries Rangil, Ganderbal, SKUAST-Kashmir, India
| | - Monisa M Malik
- Division of Aquatic Environmental Management, Faculty of Fisheries Rangil, Ganderbal, SKUAST-Kashmir, India
| | - Ishtiyaq Ahmad
- Division of Fish Genetics and Biotechnology, Faculty of Fisheries Rangil, Ganderbal, SKUAST-Kashmir, India.
| | - Adnan Abubakr
- Division of Aquatic Environmental Management, Faculty of Fisheries Rangil, Ganderbal, SKUAST-Kashmir, India
| | - Simanku Borah
- Agricultural Research Service, ICAR-CIFRI Regional Centre, Guwahati, Assam, 781006, India
| | - Mohd Ashraf Rather
- Division of Fish Genetics and Biotechnology, Faculty of Fisheries Rangil, Ganderbal, SKUAST-Kashmir, India.
| | | | - Ifra Tabassum
- Division of Aquatic Environmental Management, Faculty of Fisheries Rangil, Ganderbal, SKUAST-Kashmir, India.
| | - Giuseppe Piccione
- Department of Veterinary Sciences, University of Messina, Messina, Italy.
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy; Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Naples, Italy.
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Lee J, Kim YS, Ju K, Jeong JW, Jeong S. The significant impact of MPs in the industrial/municipal effluents on the MPs abundance in the Nakdong River, South Korea. CHEMOSPHERE 2024; 363:142871. [PMID: 39019177 DOI: 10.1016/j.chemosphere.2024.142871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/08/2024] [Accepted: 07/14/2024] [Indexed: 07/19/2024]
Abstract
Owing to extensive plastic consumption, wastewater from households, business establishments, and industrial activities have been recognised as a significant contributor to microplastics (MPs) in aquatic environments. This case study represents the first investigation of MPs in the Nakdong River, Republic of Korea, that traverses through the largest industrial complex midstream and densely populated cities of Daegu and Busan downstream before flowing into the sea. Monitoring of MP abundance in effluents discharged from three municipal, two industrial, and one livestock wastewater treatment plant (WWTP) into the Nakdong River was conducted over four seasons from August 2022 to April 2023. Identification and quantification of MPs were performed using micro-Fourier transform infrared spectrometry. Seasonal variation in MPs in the Nakdong River was found to be strongly influenced by the nearest upstream WWTPs and rivers, exhibiting a linear relationship that decreased gradually with increasing distance from the WWTPs. The average concentrations of MPs in the six effluent sources ranged from 101 ± 13 to 490 ± 240 particles/L during the yearly monitoring period, while MP concentrations in the river ranged between 79 ± 25 and 120 ± 43 particles/L. Industrial effluents contained higher amounts of discharged MPs (314 ± 78 particles/L) than municipal sources (201 ± 61 particles/L). Notably, two municipal WWTPs, located in the highly densely populated city, discharged the highest total MP amounts per day and released the greatest volumes of effluents. This study provides valuable insights into the monitoring and impact of effluents on MPs in rivers, which could inform MP treatment and management strategies for in river and marine environments.
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Affiliation(s)
- Jieun Lee
- Institute for Environment and Energy, Pusan National University, Busan, 46241, South Korea
| | - Yong-Soon Kim
- Water Quality Research Institute, Busan Water Authority, Busan, 47210, South Korea.
| | - KwangYong Ju
- Water Quality Research Institute, Busan Water Authority, Busan, 47210, South Korea
| | - Jae-Won Jeong
- Water Quality Research Institute, Busan Water Authority, Busan, 47210, South Korea
| | - Sanghyun Jeong
- Institute for Environment and Energy, Pusan National University, Busan, 46241, South Korea; Department of Environmental Engineering, Pusan National University, Busan, 46241, South Korea.
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Chen B, Wang Q, Wang Z, Han S, Li J, Zhuang X, Liu Y, Chen L, Zhu S, Xie F. Water transfer projects and microplastics: Analyzing changes in lake environments with a focus on Wabu Lake, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174637. [PMID: 38986692 DOI: 10.1016/j.scitotenv.2024.174637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/11/2024] [Accepted: 07/07/2024] [Indexed: 07/12/2024]
Abstract
Microplastics are widespread in freshwaters, yet their interaction with navigational structures remains unclear. This study compared the distribution and characteristics of microplastics before and after navigation in Wabu Lake. Microplastic concentrations decreased significantly in both surface water and sediment due to navigation opened, from 13.7 ± 6.56 to 3.12 ± 1.8 p L-1 (p < 0.001) and from 568 ± 286 to 174 ± 60.2 p kg-1 (p < 0.001), respectively. Acrylates copolymer was frequently detected in surface water and sediment before navigation, whereas the dominant polymer after navigation was chlorinated polyisoprene in surface water and chlorinated polyethylene in sediment. The results showed that three-years dredging induced relatively severe microplastic pollution before navigation, however, these microplastics were apparently eliminated after navigation, as the distribution and characteristics of microplastics thoroughly varied. This study provides a valuable finding that microplastic transport process can be facilitated by water transfer project, which should be considered for preventing microplastic pollution.
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Affiliation(s)
- Bingyu Chen
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China; Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230601, China.
| | - Qian Wang
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China; Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230601, China
| | - Zhimin Wang
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China; Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230601, China
| | - Sanqing Han
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
| | - Junjie Li
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
| | - Xingmei Zhuang
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
| | - Yuan Liu
- State Key Laboratory of Marine Pollution, City University of Hong Kong, 999077, Hong Kong
| | - Long Chen
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China; Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230601, China
| | - Shuguang Zhu
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China; Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230601, China
| | - Fazhi Xie
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China; Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Anhui Jianzhu University, Hefei 230601, China
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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.
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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
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Sun T, Teng Y, Ji C, Li F, Shan X, Wu H. Global prevalence of microplastics in tap water systems: Abundance, characteristics, drivers and knowledge gaps. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172662. [PMID: 38649043 DOI: 10.1016/j.scitotenv.2024.172662] [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: 02/21/2024] [Revised: 04/09/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Tap water is a main route for human direct exposure to microplastics (MPs). This study recompiled baseline data from 34 countries to assess the current status and drivers of MP contamination in global tap water systems (TWS). It was shown that MPs were detected in 87 % of 1148 samples, suggesting the widespread occurrence of MPs in TWS. The detected concentrations of MPs spanned seven orders of magnitude and followed the linearized log-normal distribution (MSE = 0.035, R2 = 0.965), with cumulative concentrations at 5th, 50th and 95th percentiles of 0.028, 4.491 and 728.105 items/L, respectively. The morphological characteristics were further investigated, indicating that particles smaller than 50 μm dominated in global TWS, with fragment, polyester and transparent as the most common shape, composition and color of MPs, respectively. Subsequently, the SHapley Additive exPlanations (SHAP) algorithm was implemented to quantify the importance of variables affecting the MP abundance in global TWS, showing that the lower particle size limit was the most important variables. Subgroup analysis revealed that the concentration of MPs counted at the size limit of 1 μm was >20 times higher than that above 1 μm. Ultimately, current knowledge gaps and future research needs were elucidated.
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Affiliation(s)
- Tao Sun
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yuefa Teng
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Chenglong Ji
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; Function Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, Qingdao 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences (CAS), Qingdao 266071, PR China
| | - Fei Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences (CAS), Qingdao 266071, PR China
| | - Xiujuan Shan
- Function Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, Qingdao 266237, PR China
| | - Huifeng Wu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, PR China; Function Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, Qingdao 266237, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences (CAS), Qingdao 266071, PR China.
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9
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Du M, Pu Q, Xu Y, Li Y, Li X. Improved microalgae carbon fixation and microplastic sedimentation in the lake through in silico method. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171623. [PMID: 38485006 DOI: 10.1016/j.scitotenv.2024.171623] [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: 01/29/2024] [Revised: 02/29/2024] [Accepted: 03/08/2024] [Indexed: 03/18/2024]
Abstract
The impact of microplastics in lake water environments on microalgae carbon fixation and microplastic sedimentation has attracted global attention. The molecular dynamic simulation method was used to design microplastic additive proportioning schemes for improving microalgae carbon fixation and microplastic sedimentation. Results showed that the harm of microplastics can be effectively alleviated by adjusting the proportioning scheme of plastic additives. Besides, the decabromodiphenyl oxide (DBDPO) was identified as the main additive that affect the microalgae carbon fixation and microplastic sedimentation. Thus, a molecular modification based on CiteSpace visual analysis was firstly used and 12 DBDPO derivatives were designed. After the screening, DBDPO-2 and DBDPO-5 became the environmentally friendly DBDPO alternatives, with the highest microalgae carbon fixation and microplastic sedimentation ability enhancement of over 25 %. Compared to DBDPO, DBDPO derivatives were found easier to stimulate the adsorption and binding ability of surrounding hotspot amino acids to CO2 and ribulose-5-phosphate, increasing the solvent-accessible surface area of microplastics, thus improving the microalgae carbon fixation and microplastic sedimentation ability. This study provides theoretical support for simultaneously promoting the microalgae carbon fixation and microplastic sedimentation in the lake water environment and provides scientific basis for the protection and sustainable development of lake water ecosystem.
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Affiliation(s)
- Meijin Du
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Qikun Pu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Yingjie Xu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| | - Yu Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| | - Xixi Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Key Laboratory for Lake Pollution Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University, St. John's A1B 3X5, Canada.
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Yao J, Li J, Qi J, Wan M, Tang L, Han H, Tian K, Liu S. Distribution patterns and environmental risk assessments of microplastics in the lake waters and sediments from eight typical wetland parks in Changsha city, China. Front Public Health 2024; 12:1365906. [PMID: 38784569 PMCID: PMC11112001 DOI: 10.3389/fpubh.2024.1365906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024] Open
Abstract
The quality of water in urban parks is closely related to people's daily lives, but the pollution caused by microplastics in park water and sediments has not been comprehensively studied. Therefore, eight typical parks in the urban area of Changsha, China, were selected, and Raman spectroscopy was used to explore the spatial distributions and compositions of the microplastics in the water and sediments, analyze their influencing factors, and evaluate their environmental risks. The results showed that the abundances of surface water microplastics in all parks ranged from 150 to 525 n L-1, and the abundances of sediment microplastics ranged from 120 to 585 n kg-1. The microplastics in the surface water included polyethylene terephthalate (PET), chlorinated polyethylene (CPE), and fluororubber (FLU), while those in the sediments included polyvinyl chloride (PVC), wp-acrylate copolymer (ACR), and CPE. Regression analyses revealed significant positive correlations between human activities and the abundances of microplastics in the parks. Among them, the correlations of population, industrial discharge and domestic wastewater discharge with the abundance of microplastics in park water were the strongest. However, the correlations of car flow and tourists with the abundance of microplastics in park water were the weakest. Based on the potential ecological risk indices (PERI) classification assessment method, the levels of microplastics in the waters and sediments of the eight parks were all within the II-level risk zone (53-8,549), among which the risk indices for Meixi Lake and Yudai Lake were within the IV risk zone (1,365-8,549), which may have been caused by the high population density near the park. This study provides new insights into the characteristics of microplastics in urban park water and sediment.
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Affiliation(s)
- Junyi Yao
- The Department of Environmental Design, School of Architecture and Art, Central South University, Changsha, China
| | - Jiang Li
- The Department of Environmental Design, School of Architecture and Art, Central South University, Changsha, China
| | - Jialing Qi
- The Department of Environmental Design, School of Architecture and Art, Central South University, Changsha, China
| | - Mengrui Wan
- The Department of Environmental Design, School of Architecture and Art, Central South University, Changsha, China
| | - Liling Tang
- The Department of Environmental Design, School of Architecture and Art, Central South University, Changsha, China
| | - Hui Han
- Henan Field Observation and Research Station of Headwork Wetland Ecosystem of the Central Route of South-to-North Water Diversion Project, School of Life Sciences and Agricultural Engineering, Nanyang Normal University, Nanyang, Henan, China
| | - Kai Tian
- Henan Field Observation and Research Station of Headwork Wetland Ecosystem of the Central Route of South-to-North Water Diversion Project, School of Life Sciences and Agricultural Engineering, Nanyang Normal University, Nanyang, Henan, China
| | - Shaobo Liu
- The Department of Environmental Design, School of Architecture and Art, Central South University, Changsha, China
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11
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Parolini M, Perin E, De Felice B, Gazzotti S, Palazzi A, Conti L, Conterosito E, Rosio E, Bruno F, Gianotti V, Cavallo R. Altitudinal variation of microplastic abundance in lakeshore sediments from Italian lakes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:35864-35877. [PMID: 38743335 PMCID: PMC11136813 DOI: 10.1007/s11356-024-33648-5] [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: 02/23/2024] [Accepted: 05/07/2024] [Indexed: 05/16/2024]
Abstract
Microplastic (MP) contamination represents an issue of global concern for both aquatic and terrestrial ecosystems, but only in recent years, the study of MPs has been focused on freshwaters. Several monitoring surveys have detected the presence of a wide array of MPs differing in size, shape, and polymer composition in rivers and lakes worldwide. Because of their role of sink for plastic particles, the abundance of MPs was investigated in waters, and deep and shoreline sediments from diverse lakes, confirming the ubiquity of this contamination. Although diverse factors, including those concerning anthropogenic activities and physical characteristics of lakes, have been supposed to affect MP abundances, very few studies have directly addressed these links. Thus, the aim of the present study was to explore the levels of MP contamination in mountain and subalpine lakes from Northern Italy. Fourteen lakes dislocated at different altitudes and characterized by dissimilar anthropic pressures were visited. Lakeshore sediments were collected close to the drift line to assess MPs contamination. Our results showed the presence of MPs in lakeshore sediments from all the lakes, with a mean (± standard deviation) expressed as MPs/Kg dry sediment accounting to 14.42 ± 13.31 (range 1.57-61.53), while expressed as MPs/m2, it was 176.07 ± 172.83 (range 25.00-666.67). The MP abundance measured for Garda Lake was significantly higher compared to all the other ones (F1,13 = 7.344; P < 0.001). The pattern of contamination was dominated by fibers in all the lakes, but they were the main contributors in mountain lakes. These findings showed that the MP abundance varied according to the altitude of the lakes, with higher levels measured in subalpine lakes located at low altitudes and surrounded by populated areas.
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Affiliation(s)
- Marco Parolini
- Department of Environmental Science and Policy, University of Milan, Via Celoria 26, 20133, Milan, Italy.
| | - Elena Perin
- Department of Sustainable Development and Ecological Transition, University of Piemonte Orientale, Via T. Michel 11, 13100, Vercelli, Italy
| | - Beatrice De Felice
- Department of Environmental Science and Policy, University of Milan, Via Celoria 26, 20133, Milan, Italy
| | - Stefano Gazzotti
- Department of Chemistry, University of Milan, Via Golgi 19, 20133, Milan, Italy
| | - Adriano Palazzi
- Department of Environmental Science and Policy, University of Milan, Via Celoria 26, 20133, Milan, Italy
| | - Luca Conti
- ERICA Soc. Coop, Via Santa Margherita, 26, 12051, Cuneo, Italy
| | - Eleonora Conterosito
- Department of Sustainable Development and Ecological Transition, University of Piemonte Orientale, Via T. Michel 11, 13100, Vercelli, Italy
| | - Emanuela Rosio
- ERICA Soc. Coop, Via Santa Margherita, 26, 12051, Cuneo, Italy
| | - Francesco Bruno
- ERICA Soc. Coop, Via Santa Margherita, 26, 12051, Cuneo, Italy
| | - Valentina Gianotti
- Department of Sustainable Development and Ecological Transition, University of Piemonte Orientale, Via T. Michel 11, 13100, Vercelli, Italy
| | - Roberto Cavallo
- ERICA Soc. Coop, Via Santa Margherita, 26, 12051, Cuneo, Italy
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12
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Maurya AC, Bhattacharya A, Vij V, Khare SK. Deciphering the seasonal dynamics of microplastic morphotypes and associated co-contaminants along the northwest coast of India. CHEMOSPHERE 2024; 354:141690. [PMID: 38484988 DOI: 10.1016/j.chemosphere.2024.141690] [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: 01/15/2024] [Revised: 02/23/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024]
Abstract
In the present study, the northwest coast of India, bordering the Arabian Sea, was selected to evaluate the microplastic (MP) abundance. This is the first study to emphasize the effects of different seasons on MP distribution. The collected MPs were dried, segregated, and evaluated based on their morphotype, size, color, and polymer type. A total of 1756.6, 7326.6, and 202 particles/kg of sand were estimated in the pre-monsoon, monsoon and post-monsoon seasons, respectively, with a dominance of polypropylene (PP) type of plastic in the pre-monsoon and high-density polyethylene (HDPE) in monsoon and post-monsoon seasons. HDPE and PP collected MPs during the monsoon season were further characterized for associated contaminants. Metal absorbance was detected using SEM-EDX mapping and ICP-MS. The presence of organic compounds (OCs) was analyzed using GC-MS. MPs exhibit distinct associations with metals, among which the HDPE pellet morphotype exhibits a higher range of metal adsorption. Total 61 different OCs were associated with MPs. The HDPE pellets contained the highest amounts of hydrophobic organic compounds. PP pellets were found to contain triglycerides, fatty aldehydes, and alkaloids, along with HOCs. Among morphotypes, pellet forms of MPs were found to adsorb more contaminants. These co-contaminants infiltrate the study area through sewage runoff and shoreline debris deposition, subsequently interacting with MPs. Furthermore, the MP diversity was studied by employing the MP diversity integrated index, which suggests that most of the MP diversity was observed in the pre-monsoon period. The pollution load index employed an MP risk assessment, which presented a low degree of MP contamination. In contrast, the polymer hazard index was calculated as 21650.3 in post-monsoon, placing the area under the extreme danger category. It is evident from the data that the types of MP is more important than their number. Thus, MP morphotypes have importance in the adsorption of co-contaminants.
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Affiliation(s)
- Ankita C Maurya
- Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi-11016, India
| | - Amrik Bhattacharya
- Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi-11016, India
| | - Varun Vij
- Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi-11016, India
| | - Sunil K Khare
- Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi-11016, India.
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13
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Jain Y, Govindasamy H, Kaur G, Ajith N, Ramasamy K, R S R, Ramachandran P. Microplastic pollution in high-altitude Nainital lake, Uttarakhand, India. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 346:123598. [PMID: 38369088 DOI: 10.1016/j.envpol.2024.123598] [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: 11/15/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
Microplastics (MPs) contamination has been reported in all environmental compartments, but very limited information is available at higher-altitude lakes. Nainital Lake, located at a high altitude in the Indian Himalayas, has various ecosystem services and is the major source of water for Nainital town, but the MP abundance is still unknown. This study presents the first evidence of the abundance and distribution of MP in Nainital Lake. Surface water and sediment samples were analysed from 16 different sites in and around the catchment area of Nainital Lake. The MP were observed in all the samples, and their abundance in surface water was 8.6-56.0 particles L-1 in the lake and 2.4-88.0 particles L-1 in hotspot sites. In the surface sediment, MP abundance ranged from 0.4-10.6 particles g-1, while in the hotspot sediment, the mean abundance was 0.6 ± 0.5 particles g-1. Fibers were the dominant MP, while 0.02-1 mm were the predominant size of MP particles. The results of chemical characterization showed the presence of six polymers, among which high-density polyethylene was the most abundant. The Polymer Hazard Index assessment classified the identified polymers as low-to high-risk categories, with a higher abundance of low- (polypropylene) and medium- (polyethylene)-risk polymers. Tourist activities and run-off catchments can be considered the major sources of MP, which can affect the ecosystem. Minimal concentrations of MP were observed in the tube well and drinking water, which depicts the direct risks to humans and, thus, the need for remedial measures to prevent MP contamination in drinking water. This study improves the knowledge of MP contamination in the higher-altitude freshwater lake, which can be the major pathway for the transport of MP to the rivers, and also emphasizes the need for waste management in Nainital town.
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Affiliation(s)
- Yashi Jain
- School of Life Sciences, Department of Ecology and Environmental Science, Pondicherry University. India.
| | - Hariharan Govindasamy
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Chennai. India
| | - Gurjeet Kaur
- School of Life Sciences, Department of Ecology and Environmental Science, Pondicherry University. India
| | - Nithin Ajith
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Chennai. India
| | - Karthik Ramasamy
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Chennai. India
| | - Robin R S
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Chennai. India
| | - Purvaja Ramachandran
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Chennai. India
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14
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Ahmadi P, Dichgans F, Jagau L, Schmidt C, Aizinger V, Gilfedder BS, Fleckenstein JH. Systematic CFD-based evaluation of physical factors influencing the spatiotemporal distribution patterns of microplastic particles in lakes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170218. [PMID: 38280578 DOI: 10.1016/j.scitotenv.2024.170218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/24/2023] [Accepted: 01/14/2024] [Indexed: 01/29/2024]
Abstract
Spatiotemporal distribution patterns of microplastic (MP) particles in lakes hinge on both the physical conditions in the lake and particle properties. Using numerical simulations, we systematically investigated the influence of lake depth and bathymetry, wind and temperature conditions, MP particle release location and timing, as well as particle diameter (10, 20, and 50 μm). Our results indicate that maximum lake depth had the greatest effect on the residence time in the water column, as it determines the settling timescale and occurrence of hydrodynamic complexity such as density-driven flows in the lake. Increasing particle size from 10 to 20 and 50 μm also significantly reduced the residence time making particle size the factor with the second strongest effect on the residence time and, in turn, on the availability of MP particles for uptake by organisms. Changing bathymetry from a uniform to a non-uniform had a less pronounced effect on particle residence time compared to maximum depth and particle size. Release location, wind conditions, and release time had comparably little effect on particle behavior but became more important as MP particle size decreased. The release of the 10 μm MP particles in the deeper lakes with uniform bathymetry during summer with stable thermal stratification, resulted in a nearly month-long turnover phase in the fall in which both settling and rising of particles occurred simultaneously. This was caused by convective heat and water transport during this period. In these scenarios about 2.6 to 5.4 % of the released MP particles were held in or returned to the water layers near the lake surface. While acknowledging the dominant role of lake depth and MP particle size on the particle residence time, this study further emphasizes that it is ultimately a particular combination of different factors and their interactions that shape MP distribution patterns in lakes.
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Affiliation(s)
- Pouyan Ahmadi
- Department of Hydrogeology, Helmholtz-Centre for Environmental Research, UFZ, 04318 Leipzig, Germany.
| | - Franz Dichgans
- Department of Hydrogeology, Helmholtz-Centre for Environmental Research, UFZ, 04318 Leipzig, Germany
| | - Lisa Jagau
- Chair of Scientific Computing, University of Bayreuth, 95440 Bayreuth, Germany
| | - Christian Schmidt
- Department of Hydrogeology, Helmholtz-Centre for Environmental Research, UFZ, 04318 Leipzig, Germany
| | - Vadym Aizinger
- Chair of Scientific Computing, University of Bayreuth, 95440 Bayreuth, Germany
| | - Benjamin S Gilfedder
- Limnological Research Station, Bayreuth Center of Ecology and Environmental Research, University of Bayreuth, 95440 Bayreuth, Germany; Department of Hydrology, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440 Bayreuth, Germany
| | - Jan H Fleckenstein
- Department of Hydrogeology, Helmholtz-Centre for Environmental Research, UFZ, 04318 Leipzig, Germany; Hydrologic Modelling Unit, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440 Bayreuth, Germany
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15
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Luo S, Wu H, Xu J, Wang X, He X, Li T. Effects of lakeshore landcover types and environmental factors on microplastic distribution in lakes on the Inner Mongolia Plateau, China. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133115. [PMID: 38096614 DOI: 10.1016/j.jhazmat.2023.133115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/08/2023] [Accepted: 11/27/2023] [Indexed: 02/08/2024]
Abstract
Microplastic pollution in freshwater environments has received increasing attention. However, limited research on the occurrence and distribution of microplastics in plateau lakes. This study investigated the microplastic characteristics and influencing factors in lakes with different land cover types on the Inner Mongolia Plateau. Results showed that microplastic abundance ranged from 0.5 to 12.6 items/L in water and 50-325 items/kg in sediments. Microplastics in water were predominantly polypropylene (50.5%), fragments (40.5%), and 50-200 µm (66.7%). High-density (27.9%), fibrous (69.3%), and large-sized microplastics (47.7%) were retained primarily in lake sediments. The highest microplastic abundance in water was found in cropland lakes and grassland lakes, while that in sediments was in descending order of desert lakes > cropland lakes > grassland lakes > forest-grassland lakes. Differences among lake types suggest that agriculture, tourism, and atmospheric transport may be critical microplastic sources. Microplastic distribution was positively correlated with farmland and artificial surface coverage, showing that land cover types related to human activities could exacerbate microplastic pollution in lakes. Redundancy analysis showed that ammonia nitrogen and pH were the key physicochemical factors affecting microplastic distribution in lakes, indicating the potential sources of microplastics in lakes and the uniqueness of microplastic occurrence characteristics in desert saline-alkaline lakes, respectively.
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Affiliation(s)
- Shuai Luo
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Haonan Wu
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Jifei Xu
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China.
| | - Xiujun Wang
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Xude He
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Tong Li
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
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16
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Hasager F, Björgvinsdóttir ÞN, Vinther SF, Christofili A, Kjærgaard ER, Petters SS, Bilde M, Glasius M. Development and validation of an analytical pyrolysis method for detection of airborne polystyrene nanoparticles. J Chromatogr A 2024; 1717:464622. [PMID: 38309189 DOI: 10.1016/j.chroma.2023.464622] [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: 09/11/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 02/05/2024]
Abstract
Microplastic is ubiquitous in the environment. Recently it was discovered that microplastic (MP, 1 μm-5 mm) contamination is present in the atmosphere where it can be transported over long distances and introduced to remote pristine environments. Sources, concentration levels, and transportation pathways of MP are still associated with large uncertainties. The abundance of atmospheric MP increases with decreasing particle size, suggesting that nanoplastics (NP, <1μm) could be of considerable atmospheric relevance. Only few analytical methods are available for detection of nanosized plastic particles. Thermoanalytical techniques are independent of particle size and are thus a powerful tool for MP and NP analysis. Here we develop a method for analysis of polystyrene on the nanogram scale using pyrolysis gas chromatography coupled to mass spectrometry. Pyrolysis was performed using a slow temperature ramp, and analytes were cryofocused prior to injection. The mass spectrometer was operated in selected ion monitoring (SIM) mode. A lower limit of detection of 1±1 ng and a lower limit of quantification of 2±2 ng were obtained (for the trimer peak). The method was validated with urban matrices of low (7 μg per sample) and high (53 μg per sample) aerosol mass loadings. The method performs well for low loadings, whereas high loadings seem to cause a matrix effect reducing the signal of polystyrene. This effect can be minimized by introducing a thermal desorption step prior to pyrolysis. The study provides a novel analysis method for qualitative and semi-quantitative analysis of PS on the nanogram scale in an aerosol matrix. Application of the method can be used to obtain concentration levels of polystyrene in atmospheric MP and NP. This is important in order to improve the understanding of the sources and sinks of MP and NP in the environment and thereby identify routes of exposure and uptake of this emerging contaminant.
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Affiliation(s)
- Freja Hasager
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus, Denmark
| | | | - Sofie F Vinther
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus, Denmark
| | - Antigoni Christofili
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus, Denmark
| | - Eva R Kjærgaard
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus, Denmark
| | - Sarah S Petters
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus, Denmark
| | - Merete Bilde
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus, Denmark
| | - Marianne Glasius
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000, Aarhus, Denmark.
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17
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Ding S, Gu X, Sun S, He S. Optimization of microplastic removal based on the complementarity of constructed wetland and microalgal-based system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169081. [PMID: 38104829 DOI: 10.1016/j.scitotenv.2023.169081] [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: 08/29/2023] [Revised: 11/06/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
As one of the emblematic emerging contaminants, microplastics (MPs) have aroused great public concern. Nevertheless, the global community still insufficiently acknowledges the ecological health risks and resolution strategies of MP pollution. As the nature-based biotechnologies, the constructed wetland (CW) and microalgal-based system (MBS) have been applied in exploring the removal of MPs recently. This review separately presents the removal research (mechanism, interactions, implications, and technical defects) of MPs by a single method of CWs or MBS. But one thing with certitude is that the exclusive usage of these techniques to combat MPs has non-negligible and formidable challenges. The negative impacts of MP accumulation on CWs involve toxicity to macrophytes, substrates blocking, and nitrogen-removing performance inhibition. While MPs restrict MBS practical application by making troubles for separation difficulties of microalgal-based aggregations from effluent. Hence the combined strategy of microalgal-assisted CWs is proposed based on the complementarity of biotechnologies, in an attempt to expand the removing size range of MPs, create more biodegradable conditions and improve the effluent quality. Our work evaluates and forecasts the potential of integrating combination for strengthening micro-polluted wastewater treatment, completing the synergistic removal of MP-based co-pollutants and achieving long-term stability and sustainability, which is expected to provide new insights into MP pollution regulation and control.
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Affiliation(s)
- Shaoxuan Ding
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Xushun Gu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shanshan Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shengbing He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China; Shanghai Engineering Research Center of Landscape Water Environment, Shanghai 200031, PR China.
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18
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Zhu Z, Xiao X, Wu R, Jin C, Li T, Liu W. Fifty-year pollution history of microplastics and influencing factors in offshore sediments: A case study of Ningbo, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123137. [PMID: 38097157 DOI: 10.1016/j.envpol.2023.123137] [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: 09/09/2023] [Revised: 12/08/2023] [Accepted: 12/09/2023] [Indexed: 12/18/2023]
Abstract
Sediment cores are optimal mediums for investigating the historical presence of offshore microplastics (MPs). In this study, two sediment cores were collected at varying water depths, i.e., XS2 (10 m) and XS3 (20 m), from the Xiangshan offshore (XSO) in Ningbo. We focused on the spatiotemporal distribution characteristics of MPs within two sediment cores and explored the response differences of MPs abundance to natural factors and human activities. The results showed that the MPs abundance in sediments has gradually increased since the late 1960s, but with interannual fluctuations. MPs abundance in XS2 and XS3 were 1133-8700 and 633-11433 items/kg dry weight, respectively. The predominant polymers were PA, PU, PET and ACR, with fragmented particles being the most prevalent shape of MPs. The MPs abundance in XS2 and XS3 had a similar response to natural factors, mainly including (i) MPs abundance significantly correlated with the sediment load of the Qiantang River (p < 0.01), indicating that sediment load might be an important factor affecting the MPs abundance and that MPs transported by rivers had characteristics of near-source sedimentation; (ii) typhoons had the effect of weakening the MPs abundance; and (iii) geological activities might be potential contributing factors to variations in MPs' abundance in deep sediments. Correlation analyses demonstrated that MPs in XSO was the result of multiple sources, stemming from plastic production, sewage discharge, marine fisheries and shipping activities. Notably, XS3 exhibited higher sensitivity to human activities compared to XS2, owing to differences in sampling locations. This study underscores the significance of employing two sediment cores, rather than a single core, as it provides a more comprehensive insight into the overarching trends and disparities in the historical pollution of MPs. Our findings contribute to a deeper understanding of the history of offshore MPs pollution, shedding new light on this critical environmental issue.
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Affiliation(s)
- Zhenhong Zhu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Zhongyi Testing Research Institute Co., Ltd, Ningbo, 315040, China.
| | - Xuexi Xiao
- Zhejiang Zhongyi Testing Research Institute Co., Ltd, Ningbo, 315040, China
| | - Rong Wu
- Zhejiang Zhongyi Testing Research Institute Co., Ltd, Ningbo, 315040, China
| | - Chong Jin
- Zhejiang Institute of Geology and Mineral Resource, Hangzhou, 310007, China
| | - Tong Li
- Zhejiang Zhongyi Testing Research Institute Co., Ltd, Ningbo, 315040, China
| | - Weiping Liu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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19
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Sly P, Nabhani KA, Sripada K, Kayama F. Microplastics in the Asia-Pacific Region in the Plasticene Era: Exposures and Health Risks. Ann Glob Health 2024; 90:8. [PMID: 38312716 PMCID: PMC10836168 DOI: 10.5334/aogh.4326] [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: 09/21/2023] [Accepted: 12/21/2023] [Indexed: 02/06/2024] Open
Abstract
Within the broader Anthropocene Epoch resides the Plasticene Era, where humans are subjected pervasively to nano- and microplastics (NMPs). Human's widespread exposure with NMPs occurs through the air we breathe, water we drink, and food we eat. NMP sources are wide and varied; atmospheric NMPs are largely attributed to fibres from car tyres and synthetic clothing, while particles from food packaging, personal care products, and plastic manufacturing contribute significantly to food and water contamination. NMPs have become inherent within the human body and have been found in every organ. As such, the evidence base around adverse health effects is fragmented but growing. This article presents a mini-review and report of sessions presented about NMPs at the 19th International Conference of the Pacific Basin Consortium for Environment and Health, held on Jeju Island, in 2022. Abundant evidence of substantial exposure to NMPs in the Asia-Pacific region has been exhibited. Addressing this issue necessitates the collaboration of policymakers, manufacturers, and researchers to develop safer alternatives and implement mitigation and remediation strategies. The ongoing development of a new United Nations-led global plastic treaty presents a crucial opportunity that must be acted on and not be compromised.
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Affiliation(s)
- Peter Sly
- Children’s Health and Environment Program, Child Health Research Centre, The University of Queensland, AU
| | | | - Kam Sripada
- Centre for Digital Life Norway, Institute of Biotechnology & Food Science, Norwegian University of Science & Technology, NO
| | - Fujio Kayama
- Division of Environmental Medicine, Center for Community Medicine, Jichi Medical University, JP
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20
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Xu C, Hu C, Lu J, Yang T, Shen C, Li F, Wang J. Lake plastisphere as a new biotope in the Anthropocene: Potential pathogen colonization and distinct microbial functionality. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132693. [PMID: 37804763 DOI: 10.1016/j.jhazmat.2023.132693] [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: 08/03/2023] [Revised: 09/29/2023] [Accepted: 09/30/2023] [Indexed: 10/09/2023]
Abstract
The not-homogenous microplastics (MPs) distribution in freshwaters results in distinct microbial communities. Yet knowledge regarding plastisphere in metabolic pathways and element cycling behaviors remains limited. In this study, we collected MPs from 15 sampling sites in the Taihu Lake in China, and found that MPs were widely distributed in this freshwater lake, and dominantly composed of fibrous polyethylene terephthalate. Based on the metagenomic analysis, we found that MPs were colonized by Bacteroidia, Alpha-Proteobacteria, and Bacilli as a filter, but depleted in Verrucomicrobiae. Potential pathogens of plant eudicots and monocots were significantly enriched in plastisphere. Predicted functional profiles involved in the metabolism of other amino acids, biosynthesis of other secondary metabolites, and glycan biosynthesis and metabolism were overrepresented in plastisphere. Regarding elemental cycling, functional genes related to nitrogen fixation and nitrification showed 39.6% and 67.5% decline in plastisphere, whereas the genes involved in denitrification and nitrate reduction were significantly enriched. For sulfur cycles, the plastisphere exhibited higher sulfate reduction and sulfur oxidation system activities. Additionally, the taxonomic compositions and predicted functions in the plastispheres were mainly driven by the stochastic processes, while the deterministic processes were more important for the planktonic communities. The distinctions in the microbial composition, the predicted functionality, and the underly mechanisms between plastisphere and planktonic communities illustrated the unique ecology of the new anthropogenic-related plastisphere ecosystems.
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Affiliation(s)
- Chenye Xu
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Chun Hu
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Jiawei Lu
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Tong Yang
- Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Chensi Shen
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Fang Li
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Jie Wang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
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21
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Sadia MR, Hasan M, Islam ARMT, Jion MMMF, Masud MAA, Rahman MN, Peu SD, Das A, Bari ABMM, Islam MS, Pal SC, Rakib MRJ, Senapathi V, Idris AM, Malafaia G. A review of microplastic threat mitigation in Asian lentic environments. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 260:104284. [PMID: 38101231 DOI: 10.1016/j.jconhyd.2023.104284] [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: 08/31/2023] [Revised: 11/14/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
Microplastic (MP) pollution has evolved into a significant worldwide environmental concern due to its widespread sources, enduring presence, and adverse effects on lentic ecosystems and human well-being. The growing awareness of the hidden threat posed by MPs in lentic ecosystems has emphasized the need for more in-depth research. Unlike marine environments, there remain unanswered questions about MP hotspots, ecotoxic effects, transport mechanisms, and fragmentation in lentic ecosystems. The introduction of MPs represents a novel threat to long-term environmental health, posing unresolved challenges for sustainable management. While MP pollution in lentic ecosystems has garnered global attention due to its ecotoxicity, our understanding of MP hotspots in lakes from an Asian perspective remains limited. Hence, the aim of this review is to provide a comprehensive analysis of MP hotspots, morphological attributes, ecotoxic impacts, sustainable solutions, and future challenges across Asia. The review summarizes the methods employed in previous studies and the techniques for sampling and analyzing microplastics in lake water and sediment. Notably, most studies concerning lake microplastics tend to follow the order of China > India > Pakistan > Nepal > Turkey > Bangladesh. Additionally, this review critically addresses the analysis of microplastics in lake water and sediment, shedding light on the prevalent net-based sampling methods. Ultimately, this study emphasizes the existing research gaps and suggests new research directions, taking into account recent advancements in the study of microplastics in lentic environments. In conclusion, the review advocates for sustainable interventions to mitigate MP pollution in the future, highlighting the presence of MPs in Asian lakes, water, and sediment, and their potential ecotoxicological repercussions on both the environment and human health.
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Affiliation(s)
- Moriom Rahman Sadia
- Department of Disaster Management, Begum Rokeya University, Rangpur 5400, Bangladesh
| | - Mehedi Hasan
- Department of Disaster Management, Begum Rokeya University, Rangpur 5400, Bangladesh
| | - Abu Reza Md Towfiqul Islam
- Department of Disaster Management, Begum Rokeya University, Rangpur 5400, Bangladesh; Department of Development Studies, Daffodil International University, Dhaka 1216, Bangladesh.
| | | | - Md Abdullah Al Masud
- School of Architecture, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Md Naimur Rahman
- Center for Archaeological Studies, University of Liberal Arts, Bangladesh
| | - Susmita Datta Peu
- Department of Agriculture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh
| | - Arnob Das
- Department of Mechanical Engineering, Rajshahi University of Engineering & Technology, 6 Rajshahi, 6204, Bangladesh
| | - A B M Mainul Bari
- Department of Industrial and Production Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
| | - Md Saiful Islam
- Department of Soil Science, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh
| | - Subodh Chandra Pal
- Department of Geography, The University of Burdwan, Bardhaman 713104, West Bengal, India
| | - Md Refat Jahan Rakib
- Department of Fisheries and Marine Science, Faculty of Science, Noakhali Science and Technology University, Noakhali, Bangladesh
| | | | - Abubakr M Idris
- Department of Chemistry, College of Science, King Khalid University, Abha 62529, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil.
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22
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Iwalaye OA, Maldonado MT. Microcosm study of the effects of polyester microfibers on the indigenous marine amphipod (Cyphocaris challengeri) in the Strait of Georgia (BC, Canada). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167301. [PMID: 37758137 DOI: 10.1016/j.scitotenv.2023.167301] [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: 06/05/2023] [Revised: 08/21/2023] [Accepted: 09/21/2023] [Indexed: 10/03/2023]
Abstract
Microplastics (MP) remain contaminants of great concern in the ocean because of their abundance, prevalence, and threat to marine organisms. Still, there is a great need for studies on the impact of MP on marine zooplankton. Here, we investigated the effects of polyethylene terephthalate (PET) microfibers (Mf) on the survival, Mf ingestion and retention, predation, and fecal pellets (FP) of the marine amphipod (Cyphocaris challengeri) at environmentally relevant concentrations (0, 10, 100, 1000, 10,000 and 50,000 Mf·L-1) and varied exposure time (24, 48 and 72 h). Our study demonstrated that exposure of C. challengeri to PET Mf did not affect their survival. The average number of ingested Mf and the Mf ingestion rate increased significantly with Mf concentrations. Nonetheless, the Mf ingestion rates by C. challengeri decreased significantly between 24 and 72 h in the two highest Mf treatments (10,000 and 50,000 Mf·L-1), suggesting careful rejection of the Mf or reduced feeding activity. Indeed, PET Mf significantly reduced the copepod feeding rate of the amphipods at Mf concentrations ≥1000 Mf·L-1 after 24 and 48 h of exposure duration. Over time, prey intake reduction in amphipods due to Mf ingestion could affect their reproductive outcome, growth, development, and cellular and ecosystem function. The encapsulation of PET Mf into the FP of C. challengeri significantly increased the FP density and sinking velocities, ultimately doubling the transfer rate of the FP from the surface waters to the sediments in SoG. Conversely, ingesting PET microfibers and their incorporation in FP will potentially enhance the role of C. challengeri in the biological C pump and sequestration in SoG. Our study showed that changes in Mf concentration had a more significant effect on C. challengeri Mf ingestion and ingestion rate, prey consumption, FP density and sinking velocity than the exposure time.
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Affiliation(s)
- Oladimeji Ayo Iwalaye
- Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada; Ocean Wise Conservation Association, Vancouver, British Columbia V6B 2N5, Canada.
| | - Maria T Maldonado
- Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
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23
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Upadhyay K, Bajpai S. Urban tropical freshwater ponds as microplastics hotspots-insight on abundance and characteristics using an improved sampling technique. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 196:73. [PMID: 38129741 DOI: 10.1007/s10661-023-12188-4] [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: 03/11/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
This study elucidates the distribution and characteristics of microplastics (MPs) in 20 tropical freshwater ponds, located in the urban settlement of Raipur city in state of Chhattisgarh, India. The ponds were divided into 4 groups based on the habitat types to understand the influence of land use patterns and human activity on the distribution of MPs. Here, we provide an improved sampling technique that is economical, traditional, indigenous, independent of vessels or structures, and replicable for smaller waterbodies. The efficiency of the proposed method is closer to the traditional boat-based net sampling technique. MPs are ubiquitous in surface water samples of all 20 ponds. The average abundance of MPs was 2.52 ± 1.28 particles/L for bucket samples and 2.93 ± 1.34 particles/L for net samples. Among extracted MPs, fragments, films, and foams were dominant. MPs within size class 1 mm to 500 μm were prevailing for both bucket samples and tube-net samples. Color-wise, white/transparent and black MPs were abundant in both types of samples while the majority of MPs were polyethylene and polystyrene. The tube-net sampling method is economical and replicable and provides comparable results. This can help study MPs distribution in smaller inland waterbodies where boats and structures are not readily available to conduct net sampling. We provide the first insight into the distribution of MPs in urban ponds, and the results can be used to determine the ubiquity of MPs in urban ponds located in different regions of the subcontinent.
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Affiliation(s)
- Kshitij Upadhyay
- Department of Civil Engineering, National Institute of Technology, Raipur, Raipur, Chhattisgarh, 492010, India.
| | - Samir Bajpai
- Department of Civil Engineering, National Institute of Technology, Raipur, Raipur, Chhattisgarh, 492010, India
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24
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Peng M, Wu Q, Gao S, Liu Y, Zeng J, Ruan Y. Distribution and characteristics of microplastics in an urban river: The response to urban waste management. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:166638. [PMID: 37657545 DOI: 10.1016/j.scitotenv.2023.166638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 08/25/2023] [Accepted: 08/26/2023] [Indexed: 09/03/2023]
Abstract
The rivers have been proven to be potential sources and the major transport pathways of microplastic (MP) in natural aquatic eco-systems, yet there is an absence of understanding the provenances and distribution dynamics of MP in fluvial water body of urban regions. The present investigation aimed to characterize the distribution and accumulation of MPs in both surface water and riverine bed sediments in a typical urban river (Nanming River, southwest China), during the dry and wet seasons of 2021. MP were detected throughout the entire sample set, with average surface water abundances of 750 ± 53 n/m3 and 693.3 ± 40 n/m3 in dry and wet seasons, respectively, and 2250 ± 496.7 n/kg (dw) in surface sediments. Furthermore, the composition of 25 polymer types MPs were analyzed. The sediment of the Nanming River is a sink for MPs, recording their long-term accumulation. Multivariate statistical analysis-based results indicated that urban littering and agricultural input were the major contributors of non-point MP in the Nanming River, while the discharged effluent was another factor influencing the distribution of MPs in urban fluvial system. The average abundance of MPs was negatively correlated with purchase power parity (PPP), demonstrating that the poorly waste management results in a higher abundance of MPs in municipal river systems. The present study systematically characterized the distribution of MPs in medium-sized urban rivers systems in Southwest China. These findings can inform policy and management decisions to reduce MPs pollution in urban rivers and protect aquatic ecosystems.
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Affiliation(s)
- Meixue Peng
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Qixin Wu
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China; College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550000, China.
| | - Shilin Gao
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550000, China
| | - Yongxue Liu
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550000, China
| | - Jie Zeng
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China; College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550000, China
| | - Yunjun Ruan
- Institute of Advanced Optoelectronic Materials and Technology, College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China
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25
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Molazadeh MS, Liu F, Lykkemark J, Lordachescu L, Nielsen AH, Vollertsen J. What is hiding below the surface - MPs including TWP in an urban lake. ENVIRONMENT INTERNATIONAL 2023; 182:108282. [PMID: 37952413 DOI: 10.1016/j.envint.2023.108282] [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: 07/26/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 11/14/2023]
Abstract
Inland lakes play an important role as habitats for local species and are often essential drinking water reservoirs. However, there is limited information about the presence of microplastics (MPs) in these water bodies. Thirteen sediment samples were collected across a Danish urban lake to map MPs, including tyre wear particles (TWP). The lower size detection limit was 10 µm. MPs were quantified as counts, size, and polymer type by Fourier-transform infrared microspectroscopy (µFTIR) and mass estimated from the 2D projections of the MPs. As TWP cannot be determined by µFTIR, counts and sizes could not be quantified by this technique. Instead, TWP mass was determined by pyrolysis gas chromatography mass spectrometry (Py-GC/MS). The average MP abundance was 279 mg kg-1 (µFTIR), of which 19 mg kg-1 (Py-GC/MS) were TWP. For MPs other than tyre wear, the average MP count concentration was 11,312 counts kg-1. Urban runoff from combined sewer overflows and separate stormwater outlets combined with outflow from a wastewater treatment plant were potential point sources. The spatial variation was substantial, with concentrations varying several orders of magnitude. There was no pattern in concentration across the lake, and the distribution of high and low values seemed random. This indicates that large sampling campaigns encompassing the entire lake are key to an accurate quantification. No preferential spatial trend in polymer characteristics was identified. For MPs other than TWP, the size of buoyant and non-buoyant polymers showed no significant difference across the lake, suggesting that the same processes brought them to the sediment, regardless of their density. Moreover, MP abundance was not correlated to sediment properties, further indicating a random occurrence of MPs in the lake sediments. These findings shed light on the occurrence and distribution of MPs, including TWP, in an inland lake, improving the basis for making mitigation decisions.
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Affiliation(s)
- Marziye Shabnam Molazadeh
- Aalborg University, Section of Civil and Environmental Engineering, Department of the Built Environment, Thomas Manns Vej 23, 9220 Aalborg Øst, Denmark.
| | - Fan Liu
- Aalborg University, Section of Civil and Environmental Engineering, Department of the Built Environment, Thomas Manns Vej 23, 9220 Aalborg Øst, Denmark
| | - Jeanette Lykkemark
- Aalborg University, Section of Civil and Environmental Engineering, Department of the Built Environment, Thomas Manns Vej 23, 9220 Aalborg Øst, Denmark
| | - Lucian Lordachescu
- Aalborg University, Section of Civil and Environmental Engineering, Department of the Built Environment, Thomas Manns Vej 23, 9220 Aalborg Øst, Denmark
| | - Asbjørn Haaning Nielsen
- Aalborg University, Section of Civil and Environmental Engineering, Department of the Built Environment, Thomas Manns Vej 23, 9220 Aalborg Øst, Denmark
| | - Jes Vollertsen
- Aalborg University, Section of Civil and Environmental Engineering, Department of the Built Environment, Thomas Manns Vej 23, 9220 Aalborg Øst, Denmark
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Silva MG, Oliveira MM, Peixoto F. Assessing micro and nanoplastics toxicity using rodent models: Investigating potential mitochondrial implications. Toxicology 2023; 499:153656. [PMID: 37879514 DOI: 10.1016/j.tox.2023.153656] [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: 07/22/2023] [Revised: 10/05/2023] [Accepted: 10/20/2023] [Indexed: 10/27/2023]
Abstract
Mitochondria's role as a central hub in cellular metabolism and signaling cascades is well established in the scientific community, being a classic marker of organisms' response to toxicant exposure. Nonetheless, little is known concerning the effects of emerging contaminants, such as microplastics, on mitochondrial metabolism. Micro- and nanoplastics present one of the major problems faced by modern societies. What was once an environmental problem is now recognized as an one-health issue, but little is known concerning microplastic impact on human health. Indeed, only recently, human exposure to microplastics was acknowledged by the World Health Organization, resulting in a growing interest in this research topic. Nonetheless, the mechanisms behind micro- and nanoplastics toxicity are yet to be understood. Animal models, nowadays, are the most appropriate approach to uncovering this knowledge gap. In the present review article, we explore investigations from the last two years using rodent models and reach to find the molecular mechanism behind micro- and nanoplastics toxicity and if mitochondria can act as a target. Although no research article has addressed the effects of mitochondria yet, reports have highlighted molecular and biochemical alterations that could be linked to mitochondrial function. Furthermore, certain studies described the effects of disruptions in mitochondrial metabolism, such as oxidative stress. Micro- and nanoplastics may, directly and indirectly, affect this vital organelle. Investigations concerning this topic should be encouraged once they can bring us closer to understanding the mechanisms underlying these particles' harmful effects on human health.
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Affiliation(s)
- Mónica G Silva
- Chemistry Research Centre (CQ-VR), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal.
| | - Maria Manuel Oliveira
- Chemistry Research Centre (CQ-VR), Chemistry Department, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| | - Francisco Peixoto
- Chemistry Research Centre (CQ-VR), Biology and Environment Department University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
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27
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Sau D, Hazra T, Shiuly A. Microplastics in lentic environments: implications for Indian ecosystems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:114756-114778. [PMID: 37910348 DOI: 10.1007/s11356-023-30604-7] [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: 03/03/2023] [Accepted: 10/18/2023] [Indexed: 11/03/2023]
Abstract
The paper focused on occurrence, characterization, and analytical methods of microplastic (MP) pollution in the lentic environment mainly for the Indian scenario. To understand the flow of MP from plastic waste, a material flow diagram was developed using STAN, assigning the transfer coefficients based on existing scientific literature and primary survey from local recycling facilities and industries. The quantity, morphology, and polymers of MP in the water and sediments of the lentic environment were compared for various states from 2011 to 2022. The reasons for the geographical heterogeneity in microplastics may be the migratory routes of MPs in the ecosystems like commercial uses and wastewater characteristics which possibly discharged in lentic system. Factors like particle density, water surface area, water surface depth, wind speed and direction, and water flow size mainly affect MP concentrations in the lentic water body, and mainly PHI and PLI are keys to MP risk analysis. The surface characteristics of MPs reveal that it absorbs many toxic contaminants including heavy metals. The impacts of MP on ecosystem and human health were also discussed. The impacts of socioeconomic conditions on MP concentrations for different states in India were also added. Proposed methods for plastic waste generation control also included which will help for developing policy in future to prevent MP pollution in lentic environments and also motivate future researchers to establish new standardized methods of MP analysis.
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Affiliation(s)
- Debasis Sau
- Department of Civil Engineering, Jadavpur University, 188, Raja S C Mullick Street, Kolkata, 700032, India
| | - Tumpa Hazra
- Department of Civil Engineering, Jadavpur University, 188, Raja S C Mullick Street, Kolkata, 700032, India.
| | - Amit Shiuly
- Department of Civil Engineering, Jadavpur University, 188, Raja S C Mullick Street, Kolkata, 700032, India
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Thandavamoorthy Rajeswari I, Iyyanar A, Govindarajulu B. Microplastic pollution in Kolavai Lake, Tamil Nadu, India: quantification of plankton-sized microplastics in the surface water of lake. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:94033-94048. [PMID: 37526833 DOI: 10.1007/s11356-023-29078-4] [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: 05/11/2023] [Accepted: 07/27/2023] [Indexed: 08/02/2023]
Abstract
The prevalence of microplastics (MP) (< 5 mm) in aquatic habitats has recently raised concerns owing to their influence on humans and aquatic organisms, as they absorb organic pollutants and pathogens from the surrounding media because of their higher surface-to-volume ratio. Freshwater systems are severely affected by the increased intake of discarded waste from diverse sources. This study focused on the microplastic-to-zooplankton ratio and its potential impact on the environment's food chain. The sampling sites of Kolavai Lake were divided into three zones (18 stations) to investigate the spatial distribution of microplastics and zooplankton biota. The average microplastic abundance was 6.1 ± 2.5 particles/L. Fourier transform infrared spectroscopy (FTIR) and SEM analysis were performed to understand the chemical composition and surface morphology of microplastics. Water samples collected along the Central and Southern Zones revealed a high abundance of microplastics, which might be due to anthropogenic activities. A negative correlation was observed between the abundance of microplastics and zooplankton. The microplastic-to-zooplankton ratio was found to range from 0.05 to 0.74. Furthermore, the impact of microplastics in the lake ecosystem was analysed using the size and shape descriptors for both zooplankton and microplastics. These findings suggest that microplastics built up in aquatic environments, particularly those with rich biota, could be a severe concern because of their capacity to infiltrate the food web.
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Affiliation(s)
| | - Anandavelu Iyyanar
- National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate Change, Chennai, 600 025, India
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29
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Gao S, Wu Q, Peng M, Zeng J, Jiang T, Ruan Y, Xu L, Guo K. Rapid urbanization affects microplastic communities in lake sediments: A case study of Lake Aha in southwest China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 338:117824. [PMID: 37004481 DOI: 10.1016/j.jenvman.2023.117824] [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: 01/07/2023] [Revised: 03/06/2023] [Accepted: 03/26/2023] [Indexed: 06/19/2023]
Abstract
Effective management of pollutants in urban environments is crucial for achieving sustainable cities. Microplastics, as an emerging pollutant widely present in contemporary environments, have received widespread attention in recent years. However, limited studies have reported the impact of rapid urbanization on regional microplastics. In this study, the abundance and composition of microplastic communities in the sediments of Lake Aha were analyzed using a "microplastic community" and slicing the sediments at 5 cm intervals. Results showed that microplastic abundance of sediments in Lake Aha was relatively high (up to 1700 items/kg) and decreased with increasing depth, with the highest abundance found in the surface layer (0-5 cm, 1090 ± 474 items/kg). Hierarchical cluster analysis (HCA), principal component analysis (PCA), and analysis of similarities (ANOSIM) revealed that the different sediment layers could be classified into high and low urbanization level groups based on the composition of microplastic communities. Linear discriminant analysis effect size (LEfSe) indicated that agricultural input was the main source of microplastic pollution during low urbanization levels, characterized by low abundance, large particle size, and high fiber proportion, while urban activities dominated during high urbanization levels, with high abundance, small particle size, high proportion of Polyethylene terephthalate (PET), fragments, and granules, and colorful microplastics. This study clarifies the impact of urbanization on the abundance and composition of microplastics in lake sediments, which has implications for more effective management and control of microplastic pollution in regions undergoing rapid urbanization.
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Affiliation(s)
- Shilin Gao
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China
| | - Qixin Wu
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China.
| | - Meixue Peng
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China
| | - Jie Zeng
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China
| | - Tingting Jiang
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, 550025, China; Key Laboratory of Karst Geological Resources and Environment, Guizhou University, Ministry of Education, Guiyang, Guizhou, 550025, China
| | - Yunjun Ruan
- College of Bigdata and Information Engineering, Guizhou University, Guiyang, Guizhou, 550025, China
| | - Li Xu
- Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ke Guo
- Guiyang Research Academy of Eco-Environmental Science, Guiyang, Guizhou, 550025, China
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Mohamed IA, Soliman HAM, Hana M, Lee JS, Sayed AEDH. Toxicity of mixture of polyethylene microplastics and Up Grade® pesticide on Oreochromis niloticus juvenile: I. Hemato-biochemical and histopathological alterations. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023:104213. [PMID: 37422028 DOI: 10.1016/j.etap.2023.104213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 06/28/2023] [Accepted: 07/05/2023] [Indexed: 07/10/2023]
Abstract
Acute toxicity experiments were conducted to determine the lethal concentration 50 (LC50) of the Up Grade®46% SL for Oreochromis niloticus. Our results showed that the 96-h LC50 value of UPGR for O. niloticus was 29.16 mg L-1. To study hemato-biochemical effects, fish were exposed for 15 days to individual UPGR at 2.916 mg L-1, individual polyethylene microplastics (PE-MPs) at 10 mg L-1, and to their combinations UPGR+PE-MPs. UPGR exposure induced significant decrease in account of red blood cells (RBCs) and white blood cells (WBCs), platelets, monocytes, neutrophils, eosinophils, and the concentrations of hemoglobin (Hb), hematocrit (Hct), and mean corpuscular hemoglobin concentration (MCHC) than other treatments, compared to the control group. Sub-acute UPGR exposure significantly increase lymphocytes, mean corpuscular volume (MCV), and mean corpuscular hemoglobin (MCH), compared to the control group. In conclusion, UPGR and PE-MPs displayed antagonistic toxic effects due to maybe the sorption of UPGR onto PE-MPs.
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Affiliation(s)
- Ibrahim A Mohamed
- Department of Plant protection, Faculty of Agriculture, Assiut University, 71526, Assiut, Egypt
| | - Hamdy A M Soliman
- Department of Zoology, Faculty of Science, Sohag University, 8562, Sohag, Egypt
| | - Mervat Hana
- Department of Zoology, Faculty of Science, Assiut University, 71516, Assiut, Egypt
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Alaa El-Din H Sayed
- Department of Zoology, Faculty of Science, Assiut University, 71516, Assiut, Egypt.
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31
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Hu Y, Mo CR, Wang ZW, Yu WW, Hu CY. Sugarcane Pulp Take-Out Containers Produce More Microparticles in Acidic Foods. Foods 2023; 12:2496. [PMID: 37444234 DOI: 10.3390/foods12132496] [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: 05/09/2023] [Revised: 06/19/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
In the current study, the production of microparticles released from fifteen commercial sugarcane pulp (SCP) take-out containers into different food simulants under different conditions was investigated, where deionized water (DI water), 4% acetic acid (4% HAc), and 95% ethanol (95% EtOH) were used to simulate aqueous, acidic, and fatty foods, respectively. Results showed that compared with DI water and 95% EtOH, 4% HAc caused the degradation of sugarcane fibers, thereby releasing the highest number of microparticles. The overall migration values of the sugarcane pulp take-out containers in 4% HAc were above the prescribed limit of 10 mg/dm2. Furthermore, it was estimated that consumers may intake 36,400-231,700 microparticles in a take-out container at one time, of which the proportion of particles with a particle size between 10 and 500 μm was the highest, ranging from 26,470 to 216,060 items. Moreover, the Al and Fe are the main metals in these take-out containers, ranging between 35.16 and 1244.04 and 44.71 and 398.52 mg/kg, respectively, followed by Pb, Ti, and Sr. This study provides important information that the safety of both the production of microparticles and the metallic elements should be considered for SCP take-out containers when in contact with food.
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Affiliation(s)
- Yi Hu
- Institute of Packaging Engineering, Jinan University, Zhuhai 519070, China
| | - Chun-Ru Mo
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou 510632, China
| | - Zhi-Wei Wang
- Institute of Packaging Engineering, Jinan University, Zhuhai 519070, China
| | - Wen-Wen Yu
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou 510632, China
| | - Chang-Ying Hu
- Institute of Packaging Engineering, Jinan University, Zhuhai 519070, China
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou 510632, China
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32
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Qiu Y, Zhou S, Zhang C, Qin W, Lv C. A framework for systematic microplastic ecological risk assessment at a national scale. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121631. [PMID: 37058862 DOI: 10.1016/j.envpol.2023.121631] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/25/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
Microplastic pollution is widespread in terrestrial and aquatic environments; however, a systematic assessment of the ecological risks of microplastics is lacking. This study collected research studies on microplastics in soil, aquatic and sediment environments, and screened 128 articles including 3459 sites to assess the ecological risks posed by microplastics in China following a literature quality assessment. We developed a systematic ecological risk assessment framework for microplastics in terms of spatial characterization, biotoxicity and anthropogenic impacts. The results of the pollution load index indicated that 74% and 47% of the soil and aquatic environments studied, respectively, faced a medium or higher level of pollution. Comparing predicted no effect concentrations (PNEC) and measured environmental concentrations (MECs), revealed that soil (97.70%) and aquatic (50.77%) environmental studies were at serious ecological risk from microplastics. The results of the pressure-state-response model showed that the microplastic pollution in Pearl River Delta was in a high-risk state. In addition, we found that ultraviolet radiation and rainfall exacerbate soil microplastic pollution, and higher river runoff may carry large amounts of microplastic from the source. The framework developed in this study will help assess the ecological risks of microplastics in the region to promote the mitigation of plastic pollution.
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Affiliation(s)
- Yifei Qiu
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing, 210024, China
| | - Shenglu Zhou
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing, 210024, China.
| | - Chuchu Zhang
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing, 210093, China
| | - Wendong Qin
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing, 210024, China
| | - Chengxiang Lv
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing, 210024, China
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33
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Bulbul M, Kumar S, Ajay K, Anoop A. Spatial distribution and characteristics of microplastics and associated contaminants from mid-altitude lake in NW Himalaya. CHEMOSPHERE 2023; 326:138415. [PMID: 36925020 DOI: 10.1016/j.chemosphere.2023.138415] [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: 11/16/2022] [Revised: 02/23/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
Despite the worldwide concern over the impact of microplastics (MPs) and associated organic contaminants, the information regarding the occurrence and characteristics of these emerging class of pollutants is limited in freshwater environment. We present data on the distribution and concentration levels of MPs and phthalate esters (PAEs) from Rewalsar Lake, a shallow eutrophic lake in Northwest Himalaya. The MPs were identified in all samples, with concentration of 13-238 particles L-1 and 750 to 3020 particles kg-1 dry weight (dw) in surface water and sediments respectively. Majority of MPs were dominated by polystyrene, polyethylene, polypropylene polymers that principally occurred in the form of pellets and fragments. The MPs distribution was different among sampling sites, being more abundant to sites in the proximity of domestic sewage effluents and high level of religious and tourist activities. The di-isobutyl phthalate, dibutyl phthalate (DBP) and its branched isomer, di(2-ethylhexyl) phthalate (DEHP) are the identified PAE congeners in sediments, and the measured total concentrations of Σ3PAE ranged from 1.69 μg/g to 4.03 μg/g dw. Notably, concentration values of DEHP were higher as compared to other detected phthalates, and exceeded recommended environmental risk limit. The findings of this study emphasize the requirement for proper waste management measures in the region to reduce entry of these pollutants into the ecosystem. Further, this work contributes to the understanding of MPs and PAEs potential contamination profiles and sources in freshwater environments, and provides valuable information for future management decisions.
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Affiliation(s)
- Mehta Bulbul
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, 140306, India
| | - Sunil Kumar
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, 140306, India
| | - Kumar Ajay
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, 140306, India
| | - Ambili Anoop
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, 140306, India.
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Malla-Pradhan R, Phoungthong K, Suwunwong T, Joshi TP, Pradhan BL. Microplastic pollution in lakeshore sediments: the first report on abundance and composition of Phewa Lake, Nepal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27315-4. [PMID: 37145358 DOI: 10.1007/s11356-023-27315-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 04/25/2023] [Indexed: 05/06/2023]
Abstract
Microplastic pollution in a freshwater environment has captured the attention of the scientific world in recent years. Microplastic is a new area of research in the freshwater of Nepal. Hence, the present study aims to examine the concentration, distribution, and characteristics of microplastic pollution in the sediments of Phewa Lake. Twenty sediment samples were collected from 10 sites to cover the vast area (5.762 km2) of the lake. The mean abundance of microplastic was 100.5 ± 58.6 items/kg dry weight. The average abundance of microplastics in five sections of the lake showed a significant difference (test statistics = 10.379, p < 0.05). Fibers (78.11%) dominated the sediments of Phewa Lake in all sampling sites. Transparent was the prominent color observed followed by red and altogether 70.65% of the microplastics detected were found at 0.2-1 mm size class. Fourier transform infrared spectroscopy (FTIR) analysis of visible microplastic particles (1-5 mm) confirmed polypropylene (PP) (42.86%) as the dominant polymer type followed by polyethylene (PE). This study can help to bridge the knowledge gap regarding the microplastic pollution in freshwater shoreline sediments of Nepal. Furthermore, these findings would create a new research area to explore the impact of plastic pollution which has been ignored in Phewa Lake.
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Affiliation(s)
- Rajeshwori Malla-Pradhan
- Environmental Assessment and Technology for Hazardous Waste Management Research Center, Faculty of Environmental Management, Prince of Songkla University, Songkhla, 90112, Thailand
- Environment and Climate Study Laboratory, Faculty of Science, Nepal Academy of Science and Technology, Lalitpur, Nepal
- Department of Environmental Science, Tri-Chandra Multiple Campus, Tribhuvan University, Ghantaghar, Kathmandu, Nepal
| | - Khamphe Phoungthong
- Environmental Assessment and Technology for Hazardous Waste Management Research Center, Faculty of Environmental Management, Prince of Songkla University, Songkhla, 90112, Thailand.
| | - Thitipone Suwunwong
- Center of Chemical Innovation for Sustainability (CIS), School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - Tista Prasai Joshi
- Environment and Climate Study Laboratory, Faculty of Science, Nepal Academy of Science and Technology, Lalitpur, Nepal
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Zhang M, Xu D, Liu L, Wei Y, Gao B. Vertical Differentiation of Microplastics Influenced by Thermal Stratification in a Deep Reservoir. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:6999-7008. [PMID: 37083351 DOI: 10.1021/acs.est.2c09448] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Microplastics (MPs) are an emerging environmental concern. However, vertical transport of MPs remains unclear, particularly in deep reservoirs with thermal stratification (TS). In this study, the vertical variation in MP organization, stability, migration, and the driving factors of the profile in a deep reservoir were comprehensively explored. This is the first observation that TS interfaces in a deep reservoir act as a buffer area to retard MP subsidence, especially at the interface between the epilimnion and the metalimnion. Interestingly, there was a size-selection phenomenon for MP sinking. In particular, the high accumulation of large-sized MPs (LMPs; >300 μm) indicated that LMPs were more susceptible to dramatic changes in water density at the TS interfaces. Furthermore, simultaneous analysis of water parameters and MP surface characteristics showed that the drivers of MP deposition were biological to abiotic transitions during different layers, which were influenced by algae and metals. Specifically, scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy and microscopic Fourier transform infrared analyses implied that the occurrence of metals on the MP surface can promote MP deposition in the hypolimnion. Our findings demonstrated that TS significantly influenced the MP fate in deep reservoirs, and the hotspot of MP exposure risk for vulnerable benthic organisms on the reservoir floor deserves more attention.
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Affiliation(s)
- Mengyu Zhang
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
- Department of Water Ecology and Environment, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
| | - Dongyu Xu
- Department of Water Ecology and Environment, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
| | - Linghua Liu
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
- Department of Water Ecology and Environment, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
| | - Yiting Wei
- Department of Water Ecology and Environment, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
| | - Bo Gao
- State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
- Department of Water Ecology and Environment, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
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36
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Ji J, Wu X, Li X, Zhu Y. Effects of microplastics in aquatic environments on inflammatory bowel disease. ENVIRONMENTAL RESEARCH 2023; 229:115974. [PMID: 37088319 DOI: 10.1016/j.envres.2023.115974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/03/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023]
Abstract
The incidence of inflammatory bowel disease (IBD) has been increasing in recent years, particularly in newly industrialized nations. Environmental factors have been identified as playing a crucial role in IBD pathogenesis. Microplastics (MPs), a novel class of environmental pollutants, are a significant global pollution concern. MPs are found in almost all aquatic environments. MPs in the environment may pose health risks, specifically concerning the intestinal system, due to prolonged exposure through the consumption of aquatic foods and drinking water. In this review, we aimed to provide a comprehensive overview of the current knowledge on the impact of MPs in water resources on the occurrence and progression of IBD. Our systematic analysis of in vitro and in vivo studies found that MPs induce intestinal barrier dysfunction, imbalance in the intestinal microbiome, and metabolic abnormalities, ultimately leading to IBD. In addition, MP exposure causes greater harm to individuals with preexisting gastrointestinal disorders than those without them. Our analysis of this literature review highlights the need for further research to improve the understanding of the complex relationship between MP exposure and IBD.
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Affiliation(s)
- Jiali Ji
- The Affiliated Kangning Hospital, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xinyue Wu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou, 310058, China
| | - Xi Li
- The Affiliated Kangning Hospital, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, China
| | - Ya Zhu
- The Affiliated Kangning Hospital, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325035, China.
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37
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Gosavi SM, Phuge SK. First report on microplastics contamination in a meteorite impact Crater Lake from India. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:64755-64770. [PMID: 37079229 DOI: 10.1007/s11356-023-27074-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/13/2023] [Indexed: 05/03/2023]
Abstract
Microplastic pollution is a worldwide concern affecting all environmental matrices, including pristine lakes. Lentic lakes operate as a sink for microplastics (MPs), which interfere with a biogeochemical cycle and, therefore, deserve immediate attention. We present a comprehensive assessment of MPs contamination in the sediment and surface water of a geo-heritage site, Lonar lake (India). It is the third largest natural saltwater lake and only basaltic crater in the world formed by meteoric impact around 52,000 years ago. Mean MPs abundance in lakeshore sediment and surface water was 14.44 particles/kg and 2.66 particles/L, respectively. Small-sized MPs dominate the hypersaline region of the lake. Transparent and green fragments and filaments morphotypes were abundant. Most of the MPs in Lonar lake were secondary in origin. FTIR-ATR analysis revealed 16 types of polymers in the lake, of which polypropylene, polyvinyl chloride, polyethylene, high-density polyethylene, low-density polyethylene, polystyrene, and polyester were the most common. The overall pollution load index (PLI) for Lonar lake sediment and water was 1.39 and 2.58, respectively. Although all sampling stations had significant MPs pollution (PLI > 1), there was noticeable station-specific variability, which could be linked to anthropogenic activities. Irresponsible tourist behavior and religious activities, coupled with poor waste management are the leading causes of MPs contamination in the lake. The current work fills a gap in the investigation of MP pollution in a crater lake formed by a meteorite impact by being the first to provide a precise estimate of the MPs contamination in the Lonar lake.
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Affiliation(s)
- Sachin M Gosavi
- Department of Zoology, Maharashtra College of Arts, Science and Commerce, Mumbai, Maharashtra, India.
| | - Samadhan K Phuge
- Department of Zoology, Savitribai Phule Pune University, Ganeshkhind, Pune, Maharashtra, India
- Department of Education and Extension, Savitribai Phule Pune University, Ganeshkhind, Pune, Maharashtra, India
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Liu Y, Shi X, Zhang S, Lu J, Li W, Sun B, Zhao S, Yao D, Huotari J. The spatial distribution and abundance of microplastics in lake waters and ice during ice-free and ice-covered periods. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 323:121268. [PMID: 36780975 DOI: 10.1016/j.envpol.2023.121268] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 02/07/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Understanding the spatial distribution and characteristics of microplastics (MPs) in lake waters is essential to assessing and addressing lacustrine MP pollution. This study investigated how lake ice affects the abundance, spatial distribution, and characteristics (size, shape) of MPs in Lake Ulansuhai by analyzing samples collected at ten sites uniformly distributed throughout the lake during ice-free and ice-covered periods. The abundance of MPs ranged between 204 ± 28 and 1224 ± 185 n·L-1 in lake waters during the ice-free period, and from 34 ± 8 to 216 ± 21 n·L-1 and 269 ± 84 to 915 ± 117 n·L-1 in water and ice during the ice-covered period, respectively. During the ice-covered period, MPs were 2.74-8.14 times higher in the ice than in water beneath the ice. Ice formation decreased MP abundance in lake waters, in part, by incorporating a relatively high percentage of MPs into the ice mass during freezing and by inhibiting atmospheric MPs from reaching the lake waters. The abundance of MPs in the water during the ice-free period was 4.50-11.30 times greater than during the ice-covered period. Seasonal variations in MP shape also occurred; the proportion of fibrous MPs in water decreased during the ice-covered period. Variations in MP abundance were partly due to differences in sedimentation rates; the settling of fibrous MPs is slower, making it easier for them to be captured during the formation of surface ice. Spatially, MPs were uniformly distributed during the ice-free period, but exhibited a spatially distinct pattern during ice-covered periods, when MPs in lake waters were higher in the northeast and lower in the southwest portions of the lake. During the ice-free period, small MPs (0.05-0.5 mm) were more likely to move with currents in the lake, whereas water velocities were reduced by ice formation, allowing small MPs to accumulate near the lake inlet.
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Affiliation(s)
- Yu Liu
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China
| | - Xiaohong Shi
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China.
| | - Sheng Zhang
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China
| | - Junping Lu
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China
| | - Wenbao Li
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China
| | - Biao Sun
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China
| | - Shengnan Zhao
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot, 010018, China; Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot, 010018, China
| | - Dingwen Yao
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Jussi Huotari
- Lammi Biological Station, Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, Helsinki University, Lammi, FI-16900, Finland
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Li T, Zhang W, Yu H, Hai C, Wang Y, Yu S, Tsedevdorj SO. Research status and prospects of microplastic pollution in lakes. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:485. [PMID: 36933078 DOI: 10.1007/s10661-023-11043-w] [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: 09/19/2022] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
As an emerging pollutant, microplastics have attracted widespread concern around the world. Research on microplastics was first conducted in oceans, and in recent years, inland water, especially lakes, has gradually become a hot spot. This paper systematically reviews the sampling, separation, purification, and identification technologies used to assess microplastics in lakes and summarizes the occurrence of lake microplastics worldwide. The results show that microplastics are widespread in lake water and sediment. There are obvious geographical differences in the occurrence of microplastics. The abundance of microplastics in different lakes varies greatly. The forms are mostly fibrous and fragments, and the main polymers are polypropylene (PP) and polyethylene (PE). Previous papers have failed to comment in as much detail on the microplastic sampling techniques employed within lake systems. The sampling and analysis methods are critical to accurately evaluating contamination results. Due to the widespread presence of microplastics and the lack of uniform standards, there are various sampling methods. Trawls and grabs are most widely used in the sampling of lake water bodies and sediment, and sodium chloride and hydrogen peroxide are the most widely used media for flotation and digestion, respectively. In the future, it will be critical to establish unified standards for lake microplastic sampling and analysis technology, further explore the migration mechanism of microplastics in lake systems, and pay attention to the impact of microplastics on lake ecosystems.
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Affiliation(s)
- Tong Li
- School of Geography, Inner Mongolia Normal University, Hohhot, 010022, China
| | - Weiqing Zhang
- School of Geography, Inner Mongolia Normal University, Hohhot, 010022, China.
| | - Hui Yu
- School of Geography, Inner Mongolia Normal University, Hohhot, 010022, China
| | - Chunxing Hai
- School of Geography, Inner Mongolia Normal University, Hohhot, 010022, China
| | - Yong Wang
- School of Geography, Inner Mongolia Normal University, Hohhot, 010022, China
| | - Shan Yu
- School of Geography, Inner Mongolia Normal University, Hohhot, 010022, China
| | - Ser-Od Tsedevdorj
- Department of Geography, School of Mathematics and Natural Sciences, Mongolian National University of Education, Ulaanbaatar, 14191, Mongolia
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40
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Antohi VM, Ionescu RV, Zlati ML, Iticescu C, Georgescu PL, Calmuc M. Regional Regression Correlation Model of Microplastic Water Pollution Control Using Circular Economy Tools. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20054014. [PMID: 36901030 PMCID: PMC10002311 DOI: 10.3390/ijerph20054014] [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: 01/13/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 06/12/2023]
Abstract
Water pollution caused by microplastics represents an important challenge for the environment and people's health. The weak international regulations and standards in this domain support increased water pollution with microplastics. The literature is unsuccessful in establishing a common approach regarding this subject. The main objective of this research is to develop a new approach to necessary policies and ways of action to decrease water pollution caused by microplastics. In this context, we quantified the impact of European water pollution caused by microplastics in the circular economy. The main research methods used in the paper are meta-analysis, statistical analysis and an econometric approach. A new econometric model is developed in order to assist the decision makers in increasing efficiency of public policies regarding water pollution elimination. The main result of this study relies on combining, in an integrated way, the Organisation for Economic Co-operation and Development's (OECD) data on microplastic water pollution and identifying relevant policies to combat this type of pollution.
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Affiliation(s)
- Valentin Marian Antohi
- Department of Business Administration, Dunarea de Jos University of Galati, 800001 Galati, Romania
- Department of Finance, Accounting and Economic Theory, Transylvania University of Brasov, 500036 Brasov, Romania
| | - Romeo Victor Ionescu
- Department of Administrative Sciences and Regional Studies, Dunarea de Jos University of Galati, 800201 Galati, Romania
| | - Monica Laura Zlati
- Department of Business Administration, Dunarea de Jos University of Galati, 800001 Galati, Romania
| | - Catalina Iticescu
- Department of Chemistry, Physics and Environment, REXDAN Research Infrastructure, Dunarea de Jos University of Galati, 800008 Galati, Romania
| | - Puiu Lucian Georgescu
- Department of Chemistry, Physics and Environment, REXDAN Research Infrastructure, Dunarea de Jos University of Galati, 800008 Galati, Romania
| | - Madalina Calmuc
- REXDAN Research Infrastructure, Dunarea de Jos University of Galati, 800008 Galati, Romania
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41
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Kieu-Le TC, Thuong QT, Truong TNS, Le TMT, Tran QV, Strady E. Baseline concentration of microplastics in surface water and sediment of the northern branches of the Mekong River Delta, Vietnam. MARINE POLLUTION BULLETIN 2023; 187:114605. [PMID: 36652860 DOI: 10.1016/j.marpolbul.2023.114605] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
The Mekong River Delta in Vietnam, is concerned by numerous microplastic-related issues such as a lack of wastewater treatment facilities and mismanagement of plastic waste released from agriculture, aquaculture and related activities. This study aimed to examine the presence of microplastics in surface water and sediment by collecting samples from six sites along the Tien River and its distributaries in February 2019. The results showed that the average concentration of microplastics over the entire area was 53.8 ± 140.7 items m-3 in surface water and 6.0 ± 2.0 items g-1 dried weight in sediment, with a predominance of microplastic fibres rather than fragments, respectively 85 % and 98 % in surface water and sediment. In the main flow of surface water, the concentration of microplastics was stable; however, in the sediment, microplastic concentration was affected by the high dynamic flow regime rather than the sources where microplastics are released.
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Affiliation(s)
- Thuy-Chung Kieu-Le
- Faculty of Geology and Petroleum Engineering, Ho Chi Minh City of Technology (HCMUT), Viet Nam; Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam
| | - Quoc-Thinh Thuong
- Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam; Faculty of Environment and Natural Resources, Ho Chi Minh City of Technology (HCMUT), Viet Nam
| | - Tran-Nguyen-Sang Truong
- Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam
| | - Thi-Minh-Tam Le
- Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam
| | - Quoc-Viet Tran
- Vietnam National University Ho Chi Minh City (VNU-HCM), Viet Nam; Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam
| | - Emilie Strady
- Asian Center for Water Research (CARE), Ho Chi Minh City of Technology (HCMUT), Viet Nam; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France.
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42
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Do T, Park Y, Lim B, Kim S, Chae MY, Chun CH. Effect of the first-flush phenomenon on the quantification of microplastics in rainwater. MARINE POLLUTION BULLETIN 2023; 187:114559. [PMID: 36603237 DOI: 10.1016/j.marpolbul.2022.114559] [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: 07/24/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Precipitation of airborne microplastics (MPs) by rainfall is one of the major transport pathways of MPs from land-to-marine. While most studies examining wet precipitation of MPs collect surface runoffs, direct investigations of MPs in rainwater are hardly reported. In this study, high-frequency and direct rainwater sampling methodology considering the first-flush effect was demonstrated. The variations in MP abundance were evaluated by the inlet size of rainwater collector, time, and duration of sampling. As a result, a stable abundance of MPs was obtained when samplings were conducted at the same time and duration even with different collectors. On the other hand, the abundance increased as much as 4.5 times in samples collected at different times due to the first-flush effect of rainfall. Thus, our methodology that presents MPs concentration versus time curves based on high-frequency sampling would be helpful for easy comparison between similar rainfall studies.
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Affiliation(s)
- Taegu Do
- Chemical Business R&D Department, Institute of Science, CESCO Co., 46 Sangil-ro 10-gil, Gangdong-gu, Seoul 05288, Republic of Korea; Construction Materials Center, Korea Testing and Research Institute (KTR), 98 Guoyukwon-ro, Gwacheon-si, Gyeonggi-do 13810, Republic of Korea.
| | - Yujeong Park
- Chemical Business R&D Department, Institute of Science, CESCO Co., 46 Sangil-ro 10-gil, Gangdong-gu, Seoul 05288, Republic of Korea
| | - Byungchul Lim
- Chemical Business R&D Department, Institute of Science, CESCO Co., 46 Sangil-ro 10-gil, Gangdong-gu, Seoul 05288, Republic of Korea
| | - Soyoun Kim
- Chemical Business R&D Department, Institute of Science, CESCO Co., 46 Sangil-ro 10-gil, Gangdong-gu, Seoul 05288, Republic of Korea; Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Min-Young Chae
- Chemical Business R&D Department, Institute of Science, CESCO Co., 46 Sangil-ro 10-gil, Gangdong-gu, Seoul 05288, Republic of Korea
| | - Chi-Hwan Chun
- Chemical Business R&D Department, Institute of Science, CESCO Co., 46 Sangil-ro 10-gil, Gangdong-gu, Seoul 05288, Republic of Korea.
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Zhang P, Lu G, Sun Y, Zhang J, Liu J, Yan Z. Aged microplastics change the toxicological mechanism of roxithromycin on Carassius auratus: Size-dependent interaction and potential long-term effects. ENVIRONMENT INTERNATIONAL 2022; 169:107540. [PMID: 36166955 DOI: 10.1016/j.envint.2022.107540] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/30/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Size effects of microplastics have received extensive attention for their influence on other pollutants and harm to organisms. In this study, we investigated the uptake, elimination, tissue distribution and potential toxicity mechanism of roxithromycin (ROX) in the presence of 0.5, 5 and 50 μm of aged microplastics (AMPs) in Carassius auratus. The results showed that AMPs promoted the ROX bioaccumulation of various tissues in a size-dependent manner. AMPs and ROX significantly induced superoxide dismutase and catalase activities of liver and gut, and inhibited acetylcholinesterase activities of brain. The coexistence of smaller AMPs exacerbated pathological abnormalities in liver, gill and brain induced by ROX, while larger AMPs caused more intestinal damage. Moreover, high-throughput 16S rRNA gene sequencing indicated that the abundance of Proteobacteria in 0.5 μm AMPs and ROX joint treatments and Firmicutes and Bacteroidota in 50 μm AMPs and ROX joint treatments were significantly raised (p < 0.05). Metabolomics revealed that AMPs and ROX had a size-dependent long-term effect on gut microbial metabolites, which was mainly related to galactose metabolism, amino acid metabolism and primary bile acid biosynthesis pathways after a 7-day elimination, respectively. These results provide important insights into the relationship between the size effect of AMPs and interaction mechanism of AMPs and coexisting pollutants on aquatic organisms.
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Affiliation(s)
- Peng Zhang
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Guanghua Lu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Yu Sun
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Jiaqi Zhang
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Jianchao Liu
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Zhenhua Yan
- Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
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Jasińska A, Różalska S, Rusetskaya V, Słaba M, Bernat P. Microplastic-Induced Oxidative Stress in Metolachlor-Degrading Filamentous Fungus Trichoderma harzianum. Int J Mol Sci 2022; 23:12978. [PMID: 36361770 PMCID: PMC9658726 DOI: 10.3390/ijms232112978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/18/2022] [Accepted: 10/23/2022] [Indexed: 09/07/2023] Open
Abstract
While there has been intensive research on the influence of microplastics (MPs) on aquatic organisms and humans, their effect on microorganisms is relatively little-known. The present study describes the response of the Trichoderma harzianum strain to low-density polyethylene (LDPE) microparticles. MPs, either separately or with metolachlor (MET), were added to the cultures. Initially, MP was not found to have a negative effect on fungal growth and MET degradation. After 72 h of cultivation, the content of fungal biomass in samples with MPs was almost three times higher than that in the cultures without MPs. Additionally, a 75% degradation of the initial MET was observed. However, due to the qualitative and quantitative changes in individual classes of phospholipids, cell membrane permeability was increased. Additionally, MPs induced the overproduction of reactive oxygen species. The activity of superoxide dismutase and catalase was also increased in response to MPs. Despite these defense mechanisms, there was enhanced lipid peroxidation in the cultures containing the LDPE microparticles. The results of the study may fill the knowledge gap on the influence of MPs on filamentous fungi. The findings will be helpful in future research on the biodegradation of contaminants coexisting with MPs in soil.
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Affiliation(s)
| | | | | | | | - Przemysław Bernat
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha Street 12/16, 90-237 Lodz, Poland
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Liu Y, Hao R, Shi X, Zhang S, Sun B, Zhao S, Huotari J. Application of a microplastic trap to the determination of the factors controlling the lakebed deposition of microplastics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 843:156883. [PMID: 35752243 DOI: 10.1016/j.scitotenv.2022.156883] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/17/2022] [Accepted: 06/18/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) in aquatic environments are hard to degrade, easy to transport, and potentially hazardous to biota. Previous studies of MPs in lakes have shown that their deposition is a significant process controlling both their lateral dispersal from a source, and their concentration within the water column. However, the lakebed depositional rates of MPs have predominantly been determined using laboratory experiments and/or through model simulations that may not fully reflect field conditions. In this paper, lacustrine depositional rates in Lake Ulansuhai were documented using an MP trap that allowed for the assessment and quantification of the depositional rates of MPs of differing size, density, and shape at three sampling sites over five different time periods. The results showed that the downward flux for all types of MPs near the lakebed was correlated with wind speed. Higher wind speeds led to the resuspension of greater amounts of MPs in the lakebed sediments and the transport of greater amounts of MPs from the lake inlet to the lake interior and outlet along the hydrologic flow directions. Consequently, higher wind speeds increased the abundance of MPs at the sediment-water interface and intensified the vertical mixing of MPs in the lake water, resulting in a higher depositional flux of MPs. Particles of differing size, shape, and density exhibited different depositional rates. In general, fragmentary, larger size, and higher density MPs were more likely to be deposited. Thus, size and shape have a strong effect on the migration and deposition of HDMPs in Lake Ulansuhai.
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Affiliation(s)
- Yu Liu
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Ruonan Hao
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Xiaohong Shi
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Sheng Zhang
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Biao Sun
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Shengnan Zhao
- Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Jussi Huotari
- Lammi Biological Station, Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, Helsinki University, Lammi FI-16900, Finland
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46
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Hu Y, Zhou X, Hu C, Yu W. HS-GC-IMS identification of volatile aromatic compounds of freshly-cooked rice packaged with different disposable lunchboxes. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129516. [PMID: 35816796 DOI: 10.1016/j.jhazmat.2022.129516] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/28/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
The rapid development of online-to-offline food delivery service has necessitated the replacement of plastic lunchbox using biodegradable ones. In current study, a total number of fourteen panelists were firstly recruited and trained to investigate how different commercial disposable lunchboxes affect the freshly cooked rice sensory properties during heat preservation (60 °C, 60 min). The lunchboxes were made of pure polypropylene (PP), polypropylene-starch (PP-S), pure wheat-straw and sugarcane-straw (WS & SS) and Paper. The discrepancy of volatile aromatic substances was then analyzed using headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) to study the possible mechanism beneath the variations of the influences of different lunchboxes on the aromatic properties of rice. Results showed that, compared with the textural attributes, the aroma was significantly and positively correlated with panelist's acceptability, among which, the aroma of starchy, sulfur and smoky are the most important ones. The moisture absorption plays an important role in affecting the aromatic characteristics of the packaged rice. While all lunchboxes have inhibitory effects on the production of volatile flavor substances including 2,6-Dimethylpyrazine, 2-Acetylpyrazine and γ-Octalactone, pure PP and PP-S lunchboxes generated undesirable flavor substances including 2-Ethyl-1-hexanl and Camphene, and thus reduced panelist's preferences. It was also found that the panelist liked the rice packaged by Paper lunchbox the best because of its better performance in maintaining the aroma of starchy and sulfur, the two substances that are associated with the higher concentration of ethereal and fruity volatile flavor substances. This study provides important information for manufacturers to understand how different disposable lunchboxes may impact the textural and aromatic properties of packaged foods.
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Affiliation(s)
- Yi Hu
- Department of Food Packaging Engineering, Jinan University, Qianshan Road 206, Zhuhai City 519070, China
| | - Xianglong Zhou
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzou City 510632, Guangdong, China; State Key Labotraty of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Changying Hu
- Department of Food Packaging Engineering, Jinan University, Qianshan Road 206, Zhuhai City 519070, China; Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzou City 510632, Guangdong, China.
| | - Wenwen Yu
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzou City 510632, Guangdong, China.
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47
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Cera A, Sighicelli M, Sodo A, Lecce F, Menegoni P, Scalici M. Microplastics distribution and possible ingestion by fish in lacustrine waters (Lake Bracciano, Italy). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:68179-68190. [PMID: 35538341 DOI: 10.1007/s11356-022-20403-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
Understanding the spatial distribution patterns of microplastics (plastics < 5 mm) contributes to the assessment of sources and sinks of pollution thus providing information for the management of biota safety and overall ecosystem functionality. We chose a semi-closed study area, Lake Bracciano (Italy), to assess the environmental variability of contamination, focusing on the water compartment and the exposure of biota, specifically fish, by analysing the ingestion of microplastics. The focus of this study is to evaluate the concentration of microplastics in water (surface and column) across the lake and the ingestion of microplastics by two fish species of economic interest: Atherina boyeri and Coregonus lavaretus, inhabiting demersal and pelagic habitats respectively. Results show a surface contamination of 392,000 ± 417,000 items km-2 and a column one of 0.76 ± 1.00 items m-3. Fragments were the most abundant in surface while fibres in the column. Microplastics were found in C. lavaretus specimens, corresponding to contamination frequency of 5% and concentration of 0.15 items/fish. The main polymer found in water was polyethylene (81%); of minor percentages, there were various other polymers, including polystyrene and acrylic, which were also found in fish. As scientific literature provides few research where water and fish are simultaneously sampled, this investigation wants to contribute filling this knowledge gap by investigating for the first time a volcanic lake.
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Affiliation(s)
- Alessandra Cera
- Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146, Rome, Italy.
| | - Maria Sighicelli
- Department for Sustainability (SSPT), ENEA, C.R, Casaccia-Via Anguillarese 301, 00123, Rome, Italy
| | - Armida Sodo
- Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146, Rome, Italy
| | - Francesca Lecce
- Department for Sustainability (SSPT), ENEA, C.R, Casaccia-Via Anguillarese 301, 00123, Rome, Italy
| | - Patrizia Menegoni
- Department for Sustainability (SSPT), ENEA, C.R, Casaccia-Via Anguillarese 301, 00123, Rome, Italy
| | - Massimiliano Scalici
- Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146, Rome, Italy
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Oveisy N, Rafiee M, Rahmatpour A, Nejad AS, Hashemi M, Eslami A. Occurrence, identification, and discharge of microplastics from effluent and sludge of the largest WWTP in Iran-South of Tehran. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2022; 94:e10765. [PMID: 35971304 DOI: 10.1002/wer.10765] [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: 01/15/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Microplastic pollution is a serious threat to the biota and humans, and wastewater treatment plants act as a pathway for entering microplastics into the environment. This study discusses the identification and quantification of microplastics in the south of Tehran municipal WWTP. The sampling was repeated three times in a month, overall, nine times for water samples and once a month in total, three times for digested sludge samples by steel bucket with the WPO method. The microplastics from water and digested sludge samples were identified using the micro-Raman microscope. According to this study, 98.9% of microplastic particles in effluent and 99.2% of microplastics particles in the sludge were fibers. The influent contained an average of 180 ± 4.3 MP/L and was reduced to 5.3 ± 0.31 MP/L in the final effluent. Despite this significant reduction, we calculate that this WWTP releases 2.3 × 109 microplastics per day through final effluent and 1.61 × 1010 particles per day through dried sludge into the environment. We performed micro-Raman analyses and ICP mass to measure the amount of heavy metal absorption of MPs. In addition, SEM analyses were used to study the surface morphology of microplastic particles. PRACTITIONER POINTS: Fourteen different polymers were identified in the influent, effluent, and digested sludge. The main collected shapes obtained were fiber, film, and fragment, which fiber was the predominant polymer in this WWTP. The plant releases 2.3 * 109 MPs per day to its downstream environment. This WWTP has average removal with an efficiency of 99.06%.
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Affiliation(s)
- Niousha Oveisy
- Department of Environmental Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Rafiee
- Department of Environmental Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Rahmatpour
- Polymer Research Laboratory, Faculty of Chemistry and Petroleum Science, Shahid Beheshti University, Tehran, Iran
| | - Ali Shahidi Nejad
- Department of Environmental Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marjan Hashemi
- Environmental and Occupational Hazards Control Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Akbar Eslami
- Department of Environmental Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Environmental and Occupational Hazards Control Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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49
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Li Y, Huang R, Hu L, Zhang C, Xu X, Song L, Wang Z, Pan X, Christakos G, Wu J. Microplastics distribution in different habitats of Ximen Island and the trapping effect of blue carbon habitats on microplastics. MARINE POLLUTION BULLETIN 2022; 181:113912. [PMID: 35870383 DOI: 10.1016/j.marpolbul.2022.113912] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 06/25/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Sediments are considered to be important sinks of microplastics, but the enrichment process of microplastics by blue carbon ecosystems is poorly studied. This study analyzed the spatial distribution and temporal changes, assessed the polymer types and morphological characteristics of microplastics in sediments of five ecosystems, i.e. forests, paddy fields, mangroves, saltmarshes and bare beaches on Ximen Island, Yueqing Bay, China. The trapping effect of blue carbon (mangrove and saltmarsh) sediments on microplastic was further explored. Temporal trends in microplastic abundance showed a significant increase over the last 20 years, with the enrichment of microplastics in mangrove and saltmarsh sediments being 1.7 times as high as that in bare beach, exhibiting blue carbon vegetations have strong enrichment effect on microplastics. The dominant color, shape, size, and polymer type of microplastics in sediments were transparent, fibers and fragments, <1 mm, and polyethylene, respectively. Significant differences in the abundance and characteristics of microplastics between intertidal sediments and terrestrial soils reveal that runoff input is the main source of microplastics. This study provided the evidence of blue carbon habitats as traps of microplastics.
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Affiliation(s)
- Yaxin Li
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Runqiu Huang
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Lingling Hu
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chunfang Zhang
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Xiangrong Xu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Li Song
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Zhiyin Wang
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Xiangliang Pan
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
| | | | - Jiaping Wu
- Ocean College, Zhejiang University, Zhoushan 316021, China.
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50
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Warrier AK, Kulkarni B, Amrutha K, Jayaram D, Valsan G, Agarwal P. Seasonal variations in the abundance and distribution of microplastic particles in the surface waters of a Southern Indian Lake. CHEMOSPHERE 2022; 300:134556. [PMID: 35429497 DOI: 10.1016/j.chemosphere.2022.134556] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 03/08/2022] [Accepted: 04/05/2022] [Indexed: 05/06/2023]
Abstract
Hazardous anthropogenic particles, such as microplastics (MPs) in the lake ecosystems, are a serious concern. In this work, we have investigated the seasonal occurrence and distribution of microplastics in the surface water samples of Lake Manipal in southwest India. The concentration of MPs was found to be higher during the monsoon season (0.423 particles/L) in comparison with the post-monsoon (0.117 particles/L) period. The higher abundance is attributed to the input of storm-water sewers connected to the lake as well as surface runoff during periods of high rainfall. The concentrations of small-sized (0.3-1 mm) microplastics were greater in both seasons. Approximately 96% of the microplastics were fibres, followed by smaller amounts of fragments, pellets, films, and foams. Polyethylene terephthalate (PET) was the principal polymer composition of the microplastics, followed by cellulose. The PET and cellulose fibres were mainly derived from the laundering of clothes in the residential colonies and hostels situated close to the lake. The storm-water sewers were the likely conduit for these PET fibres into the lake. The Pollution Load Index (PLI) data reveals that pollution due to microplastics in Lake Manipal falls within the Level I risk category. The PLI was higher during the monsoon season due to an increased flux of these particles from the nearby region. During the post-monsoon period, the PLI values decreased, suggesting that MPs in the water column may have settled and mixed with the sediments. The baseline data generated in this study is important as different types of birds, amphibians, and other microorganisms are present in the environment of Lake Manipal. We also propose certain policy measures that can be adopted by the regional population to mitigate microplastic pollution in the lake and its vicinity.
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Affiliation(s)
- Anish Kumar Warrier
- Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India; Centre for Climate Studies, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
| | - Bhavani Kulkarni
- Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - K Amrutha
- Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Dhanasree Jayaram
- Department of Geopolitics and International Relations, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India; Centre for Climate Studies, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Gokul Valsan
- Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Prashansa Agarwal
- Department of Civil Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
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