1
|
Zhu S, Zhang Z, Wen C, Zhu S, Li C, Xu H, Luo X. Transport and transformations of cadmium in water-biofilm-sediment phases as affected by hydrodynamic conditions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 354:120368. [PMID: 38394874 DOI: 10.1016/j.jenvman.2024.120368] [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: 08/12/2023] [Revised: 01/08/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024]
Abstract
Hydrodynamic conditions play a crucial role in governing the fate, transport, and risks of metal elements. However, the contribution of hydrodynamic conditions to the fate and transport of heavy metals among water, sediment, and biofilm phases is poorly understood. In our study, we conducted experiments in controlled hydrodynamic conditions using a total of 6 two-phase and 9 three-phase mesocosms consisting of water, biofilm, and sediment. We also measured Cd (cadmium) specification in different phases to assess how hydrodynamic forces control Cd bioavailability. We found that turbulent flow destroyed the surface morphology of the biofilm and significantly decreased the content of extracellular polymeric substances (p < 0.05). This led to a decrease in the biofilm's adsorption capacity for Cd, with the maximum adsorption capacity (0.124 mg/g) being one-tenth of that under static conditions (1.256 mg/g). The Cd chemical forms in the biofilm and sediment were significantly different, with the highest amount of Cd in the biofilm being acid-exchangeable, accounting for up to 95.1% of the total Cd content. Cd was more easily released in the biofilm due to its weak binding state, while Cd in the sediment existed in more stable chemical forms. Hydrodynamic conditions altered the migration behavior and distribution characteristics of Cd in the system by changing the adsorption capacity of the biofilm and sediment for Cd. Cd mobility increased in laminar flow but decreased in turbulent flow. These results enhance our understanding of the underlying mechanisms that control the mobility and bioavailability of metals in aquatic environments with varying hydrodynamic conditions.
Collapse
Affiliation(s)
- Shijun Zhu
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Zixiang Zhang
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China
| | - Chen Wen
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Shiqi Zhu
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Chunyan Li
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Hansen Xu
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Xia Luo
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China.
| |
Collapse
|
2
|
Han Y, Wang H, Wu J, Hu Y, Wen H, Yang Z, Wu H. Hydrogen peroxide treatment mitigates antibiotic resistance gene and mobile genetic element propagation in mariculture sediment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 328:121652. [PMID: 37080523 DOI: 10.1016/j.envpol.2023.121652] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
Mariculture sediments have been exchange and propagation sources of antibiotic resistance genes (ARGs). However, no efficient methods have been generated to remove ARGs from sediments. Here, we explored the impact of hydrogen peroxide (H2O2) and aeration on the efficient removal of ARGs and mobile genetic elements (MGEs) in mariculture sediments. When compared with the aeration group, the ARG abundance was 3.8-32.3% lower in the H2O2 group during the first 14 days. ARG and MGE abundances were also significantly associated with reduced total bacterial population and diversity (P < 0.05). Based on partial squares path modeling, reduction of MGEs had important roles in ARG removal from H2O2 treatments, while in the aeration group, ARG reductions were mainly determined by changes in bacterial community composition. These results suggested that H2O2 treatment represent a promising method for controlling ARG abundance after dosing feed stuff and limit the spread of ARGs in aquaculture environments.
Collapse
Affiliation(s)
- Ying Han
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China; Hebei Province Key Laboratory of Deep Remediation of Heavy Metals in Water and Resource Utilization, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Haodong Wang
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Jiayue Wu
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Yikai Hu
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Hexin Wen
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Zijian Yang
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Hao Wu
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China; Hebei Province Key Laboratory of Deep Remediation of Heavy Metals in Water and Resource Utilization, Yanshan University, Qinhuangdao, 066004, PR China
| |
Collapse
|
3
|
Wu HY, Fu SF, Hu WJ, Chen FG, Cai XQ, Chen QH, Wu YB. Response of different benthic biotic indices to eutrophication and sediment heavy metal pollution, in fujian coastal water, East China sea. CHEMOSPHERE 2022; 307:135653. [PMID: 35835246 DOI: 10.1016/j.chemosphere.2022.135653] [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: 04/25/2022] [Revised: 06/16/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
The types and intensity of anthropogenic pressure in the same sea area may differ spatially and may change as time passes, but response of benthic biotic indices to different pressure is different, which makes it unreasonable to use the same benthic biotic indices in a large sea area. We provided a new way of thinking as to selecting benthic biotic indices according to pressure type. The study took six bays under eutrophication and sediment heavy metal pollution to different levels in Fujian coastal water, East China sea, as examples, analysed the response of five benthic biotic indices, namely AZTI marine biotic index (AMBI), multivariate AMBI (M-AMBI), Shannon-Wiener diversity index (H'), benthic opportunistic polychaetes amphipods (BOPA) and benthic polychaetes amphipods (BPA), to eutrophication factors and sediment heavy metal pollution factors firstly. The result indicated that AMBI well responded to dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP); M-AMBI responded soundly in the range of DIN >0.131 mg L-1 and DIP >0.022 mg L-1 and responded universally to heavy metals; H' responded to only Hg and Cd; BOPA has response to eutrophication condition of DIN >0.242 mg L-1; BPA had response to DIN, Cu and As. Then, suitable indices were selected based on the four pressure scenarios in the study area. AMBI was selected in no pressure scenario; M-AMBI was chosen under only eutrophication pressure and under dual pressure; H' was preferred in only heavy metal pressure scenario (mainly Hg pollution). At last, the density plot of the distribution of the selected indices in the evaluation grades under different pressure scenarios proved the proposal of selecting benthic biotic indices according to pressure types feasible. This study can offer some new insights into rapidly choosing indices to evaluate the coastal benthic ecological quality status.
Collapse
Affiliation(s)
- Hai-Yan Wu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, 361005, China; Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen, 361005, China
| | - Shi-Feng Fu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China.
| | - Wen-Jia Hu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, 361005, China; Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen, 361005, China
| | - Feng-Gui Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, 361005, China; Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Xiamen, 361005, China
| | - Xiao-Qiong Cai
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Qing-Hui Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Yi-Biao Wu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| |
Collapse
|
4
|
Pech D, Arcega-Cabrera F, Hernández-Avila I, Paz-Ríos CE. Spatial Trends of the Potential Association Between Benthic Macrofauna and non-Source Point Sediment Pollutants in the Yucatán Continental Shelf. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 108:9-14. [PMID: 33765167 DOI: 10.1007/s00128-021-03182-y] [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: 07/24/2020] [Accepted: 03/08/2021] [Indexed: 06/12/2023]
Abstract
Here we explored the potential association of the benthic macrofauna species composition with aliphatic hydrocarbons, polycyclic aromatic hydrocarbons and metals concentration detected in the sediments of the Yucatan continental Shelf (YCS), Mexico. The main objective was to provide insights on the temporal and spatial changes of such association in the function of the longitudinal and depth gradient. Benthic species composition, Al, Ni and Pb showed significant differences among YCS sub-regions (Western Caribbean, Mid-Yucatan and West Yucatan), and depth. Aliphatic and aromatic hydrocarbons had similar concentration in all sub-regions. The species composition was significantly associated with the levels of aliphatic hydrocarbons in the shallow sites (15-50 m) of the YCS sub-regions. Our results provide the first insights into the presence and spatial trends of different concentration of non-point source hydrocarbons and metals along the YCS, essential to establish the current ecological condition and to set a reference condition to identify further changes.
Collapse
Affiliation(s)
- Daniel Pech
- Laboratorio de Biodiversidad Marina y Cambio Climático (BIOMARCCA), El Colegio de la Frontera Sur, Campeche, Mexico.
| | - Flor Arcega-Cabrera
- Facultad de Química, Unidad de Química Sisal, Universidad Nacional Autónoma de México, Puerto de Abrigo Sisal, 97355, Yucatán, Mexico
| | - Ivan Hernández-Avila
- Facultad de Ciencias Naturales, Universidad Autónoma del Carmen, Ciudad del Carmen, Campeche, Mexico
| | - Carlos E Paz-Ríos
- Laboratorio de Biodiversidad Marina y Cambio Climático (BIOMARCCA), El Colegio de la Frontera Sur, Campeche, Mexico
| |
Collapse
|
5
|
Han X, Wang J, Cai W, Xu X, Sun M. The Pollution Status of Heavy Metals in the Surface Seawater and Sediments of the Tianjin Coastal Area, North China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:11243. [PMID: 34769760 PMCID: PMC8582827 DOI: 10.3390/ijerph182111243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/13/2021] [Accepted: 10/22/2021] [Indexed: 11/16/2022]
Abstract
Heavy metal pollution has become a great concern due to its adverse effects on the ecological system and human health. The present study investigated the concentrations of six common heavy metals (Cr, Cu, Zn, As, Cd, and Pb) in the Tianjin coastal area to understand their distribution, enrichment, sources, and potential ecological risk levels, focusing on the main contributors. The results showed that the concentration of Cu was high in the surface seawater (6.89 µg/L for the average), while Cd was the main contaminating metal in the sediments, with an average concentration of 0.77 mg/kg. The potential ecological risk index (RI) implied that the heavy metals in the sediments could cause considerable ecological risk, and Cd was the major contributor to ecological risk in this area. In particular, the field investigation showed that Cd contamination occurred as a result of anthropogenic activities, including port transportation, mariculture, and metal fabrication along the coastal area. Therefore, it is necessary to control Cd contamination in the future to improve the quality of the marine environment in Bohai Bay.
Collapse
Affiliation(s)
- Xuemeng Han
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China;
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
| | - Junqiang Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Wenqian Cai
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Xiangqin Xu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
| | - Mingdong Sun
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
| |
Collapse
|
6
|
Zhao Z, Li H, Sun Y, Yang Q, Fan J. Contrasting the assembly of phytoplankton and zooplankton communities in a polluted semi-closed sea: Effects of marine compartments and environmental selection. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 285:117256. [PMID: 33957514 DOI: 10.1016/j.envpol.2021.117256] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 04/15/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
Understanding the underlying mechanisms of community assembly is a major challenge in microbial ecology, particularly in communities composed of diverse organisms with different ecological characteristics. However, very little is known about the effects of marine compartments in shaping marine planktonic communities; primarily, how they are related to organism types and environmental variables. In this study, we used multiple statistical methods to explore the mechanisms driving phytoplankton and zooplankton metacommunity dynamics at the regional scale in the Bohai Sea, China. Clear geographic patterns were observed in both phytoplankton and zooplankton communities. Zooplankton showed a stronger distance-decay of similarity than phytoplankton, which had greater community differences between locations with further distances. Our analyses indicated that the zooplankton communities were primarily governed by species sorting versus dispersal limitation than the phytoplankton communities. Furthermore, we detected that zooplankton exhibited wider habitat niche breadths and dispersal abilities than phytoplankton. Our findings also showed that environmental pollution affected high trophic organisms via food webs; the presence of heavy metals in the Bohai Sea altered the abundance of some phytoplankton, and thus modified the zooplankton that feed on them.
Collapse
Affiliation(s)
- Zelong Zhao
- State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Hongjun Li
- State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian, 116023, China.
| | - Yi Sun
- State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Qing Yang
- State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Jinfeng Fan
- State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian, 116023, China
| |
Collapse
|
7
|
Liu S, Wu B, Seddique AA, Zhang H, Zhu A, Liu J, Shi X. Distribution, sources and chemical screening-level assessment of toxic metals in the northern Bay of Bengal, Bangladesh. MARINE POLLUTION BULLETIN 2020; 150:110676. [PMID: 31744605 DOI: 10.1016/j.marpolbul.2019.110676] [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: 08/22/2019] [Revised: 10/11/2019] [Accepted: 10/17/2019] [Indexed: 06/10/2023]
Abstract
The present study aims to examine the distribution, sources and potential risks of toxic metals in the northern Bay of Bengal, Bangladesh. We found Cu, Pb, Zn and Hg exhibited similar spatial distribution pattern. Influenced by the Ganges-Brahmaputra River and the Karnafuli River, there were higher concentrations of these metals associated with the finer sediment and higher TOC in the northeastern portion of the study area. Moreover, coal transportation was assumed to account for the distinctive spatial distribution of As with higher concentration down the Port of Chittagong in the eastern boundary. Chemical-screening level assessment demonstrated the majority of the metals exceeded the threshold effect values, indicating certain possibility of adverse effect. The concentrations of Ni were higher than the possible hazardous values, suggesting high possibility of harmful consequences. The uncontaminated sediments mainly distributed in northwestern and the central portions affected by the delta erosion and marine transported sediments.
Collapse
Affiliation(s)
- Shengfa Liu
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Geology, Qingdao National Oceanography Laboratory for Marine Science and Technology, Qingdao, 266061, China.
| | - Bin Wu
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Geology, Qingdao National Oceanography Laboratory for Marine Science and Technology, Qingdao, 266061, China
| | - Ashraf Ali Seddique
- Department of Environmental Science and Engineering, Jatiya Kabi Kazi Nazrul Islam University, Mymensingh, 2220, Bangladesh
| | - Hui Zhang
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Geology, Qingdao National Oceanography Laboratory for Marine Science and Technology, Qingdao, 266061, China
| | - Aimei Zhu
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Geology, Qingdao National Oceanography Laboratory for Marine Science and Technology, Qingdao, 266061, China
| | - Jianguo Liu
- Laboratory for Marine Geology, Qingdao National Oceanography Laboratory for Marine Science and Technology, Qingdao, 266061, China; Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Xuefa Shi
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China; Laboratory for Marine Geology, Qingdao National Oceanography Laboratory for Marine Science and Technology, Qingdao, 266061, China
| |
Collapse
|
8
|
Hu C, Dong J, Gao L, Yang X, Wang Z, Zhang X. Macrobenthos functional trait responses to heavy metal pollution gradients in a temperate lagoon. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:1107-1116. [PMID: 31434188 DOI: 10.1016/j.envpol.2019.06.117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/14/2019] [Accepted: 06/28/2019] [Indexed: 06/10/2023]
Abstract
Biological traits analysis (BTA) can help identify the effect of various contaminants on functional trait composition of macrobenthos. However, the effects of bioavailable heavy metals on functional traits of macrobenthos communities remain to be examined. We sampled macrobenthos communities and assessed environmental variables over gradients of heavy metal pollution in Swan Lagoon, China. The RLQ and fourth-corner approaches were used to investigate the response of functional traits to heavy metal pollution. Our findings suggested that macrobenthic functional traits can be used to distinguish the effects of heavy metals and other environmental variables and isolate the corresponding species associated with heavy metal contamination. The macrobenthos at highly contaminated sites comprised taxa of sub-surface deposit-feeders, second-order opportunistic species, and tube-builders, mainly represented by the polychaeta Cirriformia tentaculata and Cirratulus chrysoderma. At less contaminated sites, indifferent species, species attached to seagrass, and crawlers were observed. The results confirm that BTA can provide new insights into the response of macrobenthic functional traits to heavy metal pollution in coastal lagoons.
Collapse
Affiliation(s)
- Chengye Hu
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China
| | - Jianyu Dong
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Lijia Gao
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11790, USA
| | - Xiaolong Yang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Zhan Wang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Xiumei Zhang
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266072, China.
| |
Collapse
|
9
|
Probabilistic ecological risk assessment of heavy metals in western Laizhou Bay, Shandong Province, China. PLoS One 2019; 14:e0213011. [PMID: 30870455 PMCID: PMC6417698 DOI: 10.1371/journal.pone.0213011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 02/13/2019] [Indexed: 11/19/2022] Open
Abstract
Considering the serious land-based pollution and the weak water exchange ability of western Laizhou Bay, it is essential to conduct an ecological risk assessment of the pollutants in this area. In this study, the ecological risk caused by heavy metals deposited in the surface sediments and those resuspended in the seawater of western Laizhou Bay was evaluated using probabilistic approaches. First, the concentrations of seven heavy metals, namely As, Cd, Cr, Cu, Hg, Pb, and Zn, in the surface sediments and seawater of western Laizhou Bay were detected during the spring and autumn of 2016. The concentrations of As, Cd, Cr, Cu, and Pb were found to be at levels comparable to those in the other global coastal systems, while those of Hg and Zn were lower than those in other coastal areas. Next, an ecological risk assessment of heavy metals in the surface sediments was performed using a typical potential ecological risk index and refined by using a Monte Carlo simulation. The results suggested low risk for the heavy metals detected in the sediments of western Laizhou Bay, with the exception of Hg in September 2016, which showed a probability (0.03%) of moderate risk. Meanwhile, the aquatic ecological risk assessment of the heavy metals was performed by applying a combination of hazard quotient (HQ) and joint probability curve. While the ecological risk of Cd, Hg, and Pb was found to be acceptable, the HQs for Cr, Cu, and Zn were greater than 1, and the overall risk probability of their adverse effects was higher than 0.05, suggesting certain ecological risk. Specifically, in the case of As, the overall risk probability was lower than 0.05, suggesting that its ecological risk was acceptable, although its HQ was greater than 1. Thus, by applying the probabilistic approaches, the ecological risk of the heavy metals in western Laizhou Bay was better characterized in this study, avoiding both overestimation and underestimation of ecological risk.
Collapse
|
10
|
Liu H, Liu G, Yuan Z, Ge M, Wang S, Liu Y, Da C. Occurrence, potential health risk of heavy metals in aquatic organisms from Laizhou Bay, China. MARINE POLLUTION BULLETIN 2019; 140:388-394. [PMID: 30803658 DOI: 10.1016/j.marpolbul.2019.01.067] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 01/30/2019] [Accepted: 01/30/2019] [Indexed: 05/27/2023]
Abstract
Heavy metal pollution is a serious environmental problem. Up to date, research regarding distribution, accumulation and potential risk assessment of metals in aquatic organisms in Laizhou Bay, China is scarce. This study aims to investigate metals in aquatic organisms in this region. The results demonstrated that great variability of metals content occurred among species and sampling locations. Fe was the most abundant metal, followed by Zn, Mn, Cu, Ni, Cr, Cd and Pb. Overall, shellfish and crab displayed high enrichment ability compared with fish and shrimp. There was no significant correlation between metals and samples weight, δ13C and δ15N values. Principal component analysis (PCA) indicated that metals in samples were mainly derived from anthropogenic activities. Health risk of metals was evaluated on the basis of estimated daily intake (EDI) and target hazard quotient (THQ) values. The results indicated that metals in studied seafood had no significant risks for ordinary consumers.
Collapse
Affiliation(s)
- Houqi Liu
- Suzhou Institute for Advanced Study, USTC, Suzhou, Jiangsu 215123, PR China; CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China; Advanced Laboratory for Environmental Research and Technology, Joint Advanced Research Center, USTC-City U, Suzhou, Jiangsu 215123, China
| | - Guijian Liu
- Suzhou Institute for Advanced Study, USTC, Suzhou, Jiangsu 215123, PR China; CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China; Advanced Laboratory for Environmental Research and Technology, Joint Advanced Research Center, USTC-City U, Suzhou, Jiangsu 215123, China.
| | - Zijiao Yuan
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Meng Ge
- Suzhou Institute for Advanced Study, USTC, Suzhou, Jiangsu 215123, PR China; CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China; Advanced Laboratory for Environmental Research and Technology, Joint Advanced Research Center, USTC-City U, Suzhou, Jiangsu 215123, China
| | - Shanshan Wang
- Suzhou Institute for Advanced Study, USTC, Suzhou, Jiangsu 215123, PR China; CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China; Advanced Laboratory for Environmental Research and Technology, Joint Advanced Research Center, USTC-City U, Suzhou, Jiangsu 215123, China
| | - Yuan Liu
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Chunnian Da
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| |
Collapse
|
11
|
Han Y, Wang J, Zhao Z, Chen J, Lu H, Liu G. Detecting antibiotic resistance genes and human potential pathogenic Bacteria in fishmeal by culture-independent method. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:8665-8674. [PMID: 30707381 DOI: 10.1007/s11356-019-04303-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
Fishmeal is a fundamental ingredient of feedstuffs and is used globally in aquaculture. However, there are few data on the antibiotic resistance genes (ARGs) and human pathogenic bacteria in fishmeal and little understanding of the potential risks of fishmeal application in mariculture systems. Here, we investigated the high-throughput profiles of ARGs and human potential pathogenic bacteria (HPPB) in representative fishmeals (n = 5) and the potential impact of fishmeal on mariculture sediments. ARGs were quantified with microbial DNA quantitative PCR arrays and HPPB were analyzed with Illumina sequencing of 16S rRNA genes. The impact of the fishmeal on the aquaculture sediments was assessed in a microcosm study. Twenty-four unique ARGs (3-14 per sample) and 25 HPPB species were detected in the fishmeal samples. The most prevalent ARGs were fluoroquinolone resistance genes. The overall abundance of HPPB was 5.0-25.5%, and the HPPB species were dominated by Vibrio parahaemolyticus, Clostridium novyi, and Escherichia coli. In the mariculture microcosm sediment, fishmeal significantly increased the normalized abundance of the class I integrase gene (25.4-fold), which plays an important role in the dissemination of ARGs. Dosing with fishmeal also contributed to increases in a resident sulfanilamide resistance gene (sulI gene) and the emergence of a macrolide resistance gene (ermB gene) in the sediment. These findings demonstrated that fishmeal itself is an underestimated reservoir and source of ARGs and HPPBs, and that the application of fishmeal facilitates the dissemination of ARGs in aquaculture sediments. Our results extend our knowledge of the ARGs and HPPB within fishmeal and may provide a feasible and effective approach to the detection of ARGs and HPPB in fishmeal during food safety inspection. Graphical abstract ᅟ.
Collapse
Affiliation(s)
- Ying Han
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, 2#Linggong Road, Ganjingzi District, Dalian, Liaoning, 116024, People's Republic of China
| | - Jing Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, 2#Linggong Road, Ganjingzi District, Dalian, Liaoning, 116024, People's Republic of China.
| | - Zelong Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, 2#Linggong Road, Ganjingzi District, Dalian, Liaoning, 116024, People's Republic of China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, 2#Linggong Road, Ganjingzi District, Dalian, Liaoning, 116024, People's Republic of China
| | - Hong Lu
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, 2#Linggong Road, Ganjingzi District, Dalian, Liaoning, 116024, People's Republic of China
| | - Guangfei Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, 2#Linggong Road, Ganjingzi District, Dalian, Liaoning, 116024, People's Republic of China
| |
Collapse
|
12
|
Zhao Y, Xu M, Liu Q, Wang Z, Zhao L, Chen Y. Study of heavy metal pollution, ecological risk and source apportionment in the surface water and sediments of the Jiangsu coastal region, China: A case study of the Sheyang Estuary. MARINE POLLUTION BULLETIN 2018; 137:601-609. [PMID: 30503473 DOI: 10.1016/j.marpolbul.2018.10.044] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 10/07/2018] [Accepted: 10/17/2018] [Indexed: 06/09/2023]
Abstract
The concentrations of seven heavy metals in the surface water and sediments from the Sheyang Estuary were investigated to determine their spatial distribution, source apportionment and the potential ecological risks. The relative concentrations of heavy metals in the sediments were ranked as follows: Zn > Cr > Cu > Pb > As > Cd > Hg. The majority of the average concentrations of heavy metals in the sediment were higher than their background values, except for Cr and Hg, whereas the surface water heavy metals concentrations were lower. All of the elements apart from Cd indicated that there was no contamination and a low degree of pollution overall. Moreover, the heavy metal levels generally indicated low ecological risks, except for Cd. The results showed that Cu, Pb, Cr and Cd are influenced significantly by anthropogenic activities. Therefore, it is necessary to control heavy metal contamination caused by anthropogenic activities in the study area.
Collapse
Affiliation(s)
- Yifei Zhao
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Min Xu
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China.
| | - Qing Liu
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Zaifeng Wang
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Lin Zhao
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Ye Chen
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China.
| |
Collapse
|
13
|
Han Y, Wang J, Zhao Z, Chen J, Lu H, Liu G. Combined impact of fishmeal and tetracycline on resistomes in mariculture sediment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 242:1711-1719. [PMID: 30077403 DOI: 10.1016/j.envpol.2018.07.101] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/27/2018] [Accepted: 07/22/2018] [Indexed: 06/08/2023]
Abstract
Mariculture sediment has been recognized as a major contributor of environmental antibiotic resistance genes (ARGs), which are challenging the treatment of infections worldwide. Both antibiotics and fishmeal are used in aquaculture, and each has the potential to facilitate ARG dissemination, however their combined impact on the sediment resistome and their relative contribution remain unclear. In this study, microcosms were exposed to varying concentrations of tetracycline with or without fishmeal (0.1% wt/wt) for 14 days. Sediment genomic DNA was analyzed using high throughput quantitative PCR and 16S rRNA gene amplicon sequencing to compare the contribution of fishmeal and tetracycline to antibiotic resistomes and bacterial communities in mariculture sediment. Sixty-seven ARGs were detected potentially correlating to resistance for several major antibiotics. Fishmeal, but not the dose of tetracycline, contributed to the significant increase of both ARG abundance and diversity in the sediment. Based on principle coordinate analysis and hierarchical clustering, ARGs were clustered into two groups depending on whether fishmeal was added. Aminoglycoside, macrolide-lincosamide-streptogramin b (MLSb) and tetracycline resistance genes were the most abundant when fishmeal was used, while a significant increase in mobile genetic element (MGE) abundance was also detected (P < 0.05). Meanwhile, bacterial community structures were detected with distinct patterns between the two groups (Adonis, P < 0.05). Using the Mantel test and partial least squares path modeling, we identified that sediment resistomes were significantly correlated with microbial community structures (P < 0.05) which were mainly driven by nutrients in fishmeal. Together our findings suggested that fishmeal plays a more important role than tetracycline in proliferation of ARGs in mariculture sediment. This study may provide new insights into the mitigation of ARG propagation in mariculture operations.
Collapse
Affiliation(s)
- Ying Han
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Jing Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China.
| | - Zelong Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Hong Lu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Guangfei Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| |
Collapse
|
14
|
Liu Y, Liu G, Yuan Z, Liu H, Lam PKS. Presence of arsenic, mercury and vanadium in aquatic organisms of Laizhou Bay and their potential health risk. MARINE POLLUTION BULLETIN 2017; 125:334-340. [PMID: 28967412 DOI: 10.1016/j.marpolbul.2017.09.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 09/14/2017] [Accepted: 09/21/2017] [Indexed: 06/07/2023]
Abstract
This study aims at describing and interpreting concentrations of arsenic (As), mercury (Hg) and vanadium (V) in seven species of fish, three species of shellfish, one species of crab and two species of shrimp from the typical estuary-bay ecosystem. Arsenic, Hg and V differed among species, and the highest As, Hg and V were observed in shellfish. The stable nitrogen (δ15N) and carbon (δ13C) isotopes were determined to investigate the trophic interactions between fluctuating environment and aquatic species. Arsenic concentrations in samples were found negatively correlated with δ15N, implying biodilution effect of As through the food web, while Hg concentrations in samples were positively correlated with δ15N, indicating their biomagnification effect. The estimated daily intake values of Hg and V in this study were all below the oral reference dose. However, elevated As intakes of some aquatic organisms suggested a potential risk for frequent consumers.
Collapse
Affiliation(s)
- Yuan Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an 710075, China; State Key Laboratory in Marine Pollution, Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Guijian Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an 710075, China.
| | - Zijiao Yuan
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Houqi Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou 215123, China
| | - Paul K S Lam
- State Key Laboratory in Marine Pollution, Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
15
|
Yang W, Li X, Pei J, Sun T, Shao D, Bai J, Li Y. Bioavailability of trace metals in sediments of a recovering freshwater coastal wetland in China's Yellow River Delta, and risk assessment for the macrobenthic community. CHEMOSPHERE 2017; 189:661-671. [PMID: 28965061 DOI: 10.1016/j.chemosphere.2017.09.103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/13/2017] [Accepted: 09/21/2017] [Indexed: 06/07/2023]
Abstract
We investigated the speciation of trace metals and their ecological risks to macrobenthic communities in a recovering coastal wetland of China's Yellow River Delta during the freshwater release project. We established 16 sampling sites in three restoration areas and one intertidal reference area, and collected sediments and macrobenthos four times from 2014 to 2015. The instability index for the trace metals showed a moderate risk for Mn and a high risk for Cd. For both Mn and Cd, the carbonate and FeMn-bound fractions appear to contribute mostly to the instability and bioavailability indexes, but for Cd, the exchangeable fraction also have a much higher contribution. The bioavailability index indicated higher bioavailability of trace metals in freshwater restoration areas than that in the intertidal area. The single-factor contamination index indicated that most trace metal concentrations in the macrobenthos were in excess of the national standard. The biota-sediment accumulation factor suggested that the macrobenthos accumulated most As, Cd, and Cu. Redundancy analysis showed clear relationships between the macrobenthos and sediment metal concentrations. Our results will help wetland managers to assess the bioaccumulation risks based on metal speciation, and to improve management of these recovering freshwater wetland ecosystems.
Collapse
Affiliation(s)
- Wei Yang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Xiaoxiao Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Jun Pei
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Tao Sun
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Dongdong Shao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Junhong Bai
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yanxia Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| |
Collapse
|
16
|
Han Y, Wang J, Zhao Z, Chen J, Lu H, Liu G. Fishmeal Application Induces Antibiotic Resistance Gene Propagation in Mariculture Sediment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:10850-10860. [PMID: 28853291 DOI: 10.1021/acs.est.7b02875] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Antibiotic resistance genes (ARGs) are globally prevalent in mariculture sediment, and their presence is an issue of concern in the context of antibiotic use. Although large amounts of fishmeal have been released into the sediment, the role of fishmeal in ARG dissemination remains unclear. In this study, high-throughput ARG profiles in representative fishmeal products and the impact of fishmeal on the sediment resistome were investigated. A total of 132 unique ARGs and 4 mobile genetic elements (MGEs) were detected in five fishmeal products. ARG abundance and diversity in the mariculture microcosm sediment were significantly increased by the addition of fishmeal, and trends in ARG patterns correlated with the resident bacterial community in sediment (P < 0.05). After DNase treatment of fishmeal removed 84.3% of total ARGs, the remaining nutrients in fishmeal increased the relative abundance but not the diversity of ARGs in microcosm sediment. Our study has revealed for the first time that fishmeal itself is a major reservoir for ARGs, and the shift in the bacterial community induced by the nutrients in fishmeal is the main driver shaping the resistome in mariculture microcosm sediment. Our findings caution against the previously unperceived risk of ARG propagation in fishmeal-receiving ecosystems.
Collapse
Affiliation(s)
- Ying Han
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology , Dalian 116024, Liaoning, P.R. China
| | - Jing Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology , Dalian 116024, Liaoning, P.R. China
| | - Zelong Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology , Dalian 116024, Liaoning, P.R. China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology , Dalian 116024, Liaoning, P.R. China
| | - Hong Lu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology , Dalian 116024, Liaoning, P.R. China
| | - Guangfei Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology , Dalian 116024, Liaoning, P.R. China
| |
Collapse
|
17
|
Zhang P, Hu R, Zhu L, Wang P, Yin D, Zhang L. Distributions and contamination assessment of heavy metals in the surface sediments of western Laizhou Bay: Implications for the sources and influencing factors. MARINE POLLUTION BULLETIN 2017; 119:429-438. [PMID: 28365020 DOI: 10.1016/j.marpolbul.2017.03.046] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 03/19/2017] [Accepted: 03/22/2017] [Indexed: 06/07/2023]
Abstract
Heavy metals (Cu, Pb, Cr, Cd and As) contents in surface sediments from western Laizhou Bay were analysed to evaluate the spatial distribution pattern and their contamination level. As was mainly concentrated in the coastal area near the estuaries and the other metals were mainly concentrated in the central part of the study area. The heavy metals were present at unpolluted levels overall evaluated by the sediment quality guidelines and geoaccumulation index. Principal component analysis suggest that Cu, Pb and Cd were mainly sourced from natural processes and As was mainly derived from anthropogenic inputs. Meanwhile, Cr originated from both natural processes and anthropogenic contributions. Tidal currents, sediments and human activities were important factors affecting the distribution of heavy metals. The heavy metal environment was divided into four subareas to provide a reference for understanding the distribution and pollution of heavy metals in the estuary-bay system.
Collapse
Affiliation(s)
- Pan Zhang
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China
| | - Rijun Hu
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China.
| | - Longhai Zhu
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China
| | - Peng Wang
- National Marine Environmental Monitoring Center, PR China
| | - Dongxiao Yin
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China
| | - Lianjie Zhang
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China
| |
Collapse
|
18
|
Cabrini TMB, Barboza CAM, Skinner VB, Hauser-Davis RA, Rocha RC, Saint'Pierre TD, Valentin JL, Cardoso RS. Heavy metal contamination in sandy beach macrofauna communities from the Rio de Janeiro coast, Southeastern Brazil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 221:116-129. [PMID: 27914858 DOI: 10.1016/j.envpol.2016.11.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 11/18/2016] [Accepted: 11/19/2016] [Indexed: 05/08/2023]
Abstract
We evaluated concentrations of eight heavy metals Cr, Zn, Pb, Ni, Cu, Cd, Co and V, in tissues of representative macrofauna species from 68 sandy beaches from the coast of Rio de Janeiro state. The links between contamination levels and community descriptors such as diversity, evenness, density and biomass, were also investigated. Metal concentrations from macrofaunal tissues were compared to maximum permissible limits for human ingestion stipulated by the Brazilian regulatory agency (ANVISA). Generalized linear models (GLM's) were used to investigate the variability in macrofauna density, richness, eveness and biomass in the seven different regions. A non-metric multidimensional scaling analysis (n-MDS) was used to investigate the spatial pattern of heavy metal concentrations along the seven regions of Rio de Janeiro coast. Variation partitioning was applied to evaluate the variance in the community assemblage explained by the environmental variables and the heavy metal concentrations. Our data suggested high spatial variation in the concentration of heavy metals in macrofauna species from the beaches of Rio de Janeiro. This result highlighted a diffuse source of contamination along the coast. Most of the metals concentrations were under the limits established by ANVISA. The variability in community descriptors was related to morphodynamic variables, but not with metal contamination values, indicating the lack of direct relationships at the community level. Concentration levels of eight heavy metals in macrofauna species from 68 sandy beaches on Rio de Janeiro coast (Brazil) were spatially correlated with anthropogenic activities such as industrialization and urbanization.
Collapse
Affiliation(s)
- Tatiana M B Cabrini
- Programa de Pós-graduação em Ecologia, Universidade Federal do Rio de Janeiro, Brazil; Departamento de Ecologia e Recursos Marinhos, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, sala 407, Urca, 22240-290, Brazil.
| | - Carlos A M Barboza
- Departamento de Ecologia e Recursos Marinhos, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, sala 407, Urca, 22240-290, Brazil; Núcleo em Ecologia e Desenvolvimento Sócio Ambiental NUPEM, Universidade Federal do Rio de Janeiro, Brazil
| | - Viviane B Skinner
- Departamento de Ecologia e Recursos Marinhos, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, sala 407, Urca, 22240-290, Brazil
| | - Rachel A Hauser-Davis
- Universidade Federal do Estado do Rio de Janeiro, Centro de Ciências Biológicas e da Saúde, Instituto de Biociências, Brazil
| | - Rafael C Rocha
- Departamento de Química, PUC - Rio, Rio de Janeiro, RJ, Brazil
| | | | - Jean L Valentin
- Departamento de Biologia Marinha, Universidade Federal do Rio de Janeiro, Brazil
| | - Ricardo S Cardoso
- Departamento de Ecologia e Recursos Marinhos, Universidade Federal do Estado do Rio de Janeiro, Avenida Pasteur, 458, sala 407, Urca, 22240-290, Brazil
| |
Collapse
|
19
|
Zhao Z, Wang J, Han Y, Chen J, Liu G, Lu H, Yan B, Chen S. Nutrients, heavy metals and microbial communities co-driven distribution of antibiotic resistance genes in adjacent environment of mariculture. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:909-918. [PMID: 27814984 DOI: 10.1016/j.envpol.2016.10.075] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 10/25/2016] [Accepted: 10/26/2016] [Indexed: 06/06/2023]
Abstract
With the rapid development of aquaculture, the large amounts of pollutants were discharged into the aquatic environment, where the detected antibiotic resistance genes (ARGs) have drawn increasing attention due to their potential threats to ecological environment and human health. Thus, the impact of mariculture on ARGs was assessed and the underlying mechanism of their propagation was explained. Sediments from eight sampling sites were collected along a mariculture drainage ditch, and the sediment in Yellow River Delta National Park was used as a non-mariculture control. Microbial ARGs qPCR array and illumina sequencing of 16S rRNA gene were applied to examine the changing patterns of ARGs and bacterial communities. Results showed that 18 ARGs (3 fluoroquinolone, 1 aminoglycoside, 3 macrolide-lincosamide-streptogramin B, 2 tetracycline, and 9 beta-lactam resistance genes) were influenced by mariculture, and ARGs abundance and diversity were significantly increased in mariculture sediments (p < 0.05). A remarkable shift in bacterial community structure and composition was also observed. The abundance of most of ARGs were significantly decreased in the estuary samples, implying that seawater had a significant dilution effect on the ARGs emission from the mariculture sites. Partial redundancy analysis showed that nutrients, heavy metals, and bacteria communities might directly and indirectly contribute to ARGs propagation, suggesting that the profile and dissemination of ARGs were driven by the combined effects of multiple factors in mariculture-impacted sites.
Collapse
Affiliation(s)
- Zelong Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Jing Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
| | - Ying Han
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Guangfei Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Hong Lu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Bin Yan
- School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361024, China
| | - Shiaoshing Chen
- Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 106, Taiwan, ROC
| |
Collapse
|
20
|
Zhao G, Lu Q, Ye S, Yuan H, Ding X, Wang J. Assessment of heavy metal contamination in surface sediments of the west Guangdong coastal region, China. MARINE POLLUTION BULLETIN 2016; 108:268-274. [PMID: 27197765 DOI: 10.1016/j.marpolbul.2016.04.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 04/26/2016] [Accepted: 04/28/2016] [Indexed: 06/05/2023]
Abstract
Heavy metals (As, Cd, Cr, Cu, Hg, Pb, Zn), organic carbon and grain size of 237 surface sediment samples and one sediment core, taken from the west Guangdong coastal region in January 2008, were analyzed to evaluate the spatial distribution and pollution status. Results show that the ranges of the measured heavy metal concentrations in sediments are as follows: 8.33-39.49mg/kg for As, 0.1-1.49mg/kg for Cd, 33-108mg/kg for Cr, 11.5-78.8mg/kg for Cu, 0.04-0.26mg/kg for Hg, 21-73mg/kg for Pb, 56-248mg/kg for Zn. The heavy metal enrichment is closely associated with Corg and grain size. Both the metal enrichment factor and geoaccumulation index indicate that there was no detected pollution on metals As, Cr, Cu, Pb in our study area and a slight to moderate contamination of Cd, Hg and Zn. However, As, Cr and Cu have showed a certain risk.
Collapse
Affiliation(s)
- Guangming Zhao
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China; College of Marine Geo-science, Ocean University of China, Qingdao 266100, PR China
| | - Qingyuan Lu
- School of Water Resources and Environmental Sciences, China University of Geosciences,100083, Beijing,China
| | - Siyuan Ye
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China.
| | - Hongming Yuan
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
| | - Xigui Ding
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
| | - Jin Wang
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
| |
Collapse
|
21
|
Wu B, Li X, Song J, Hu L, Shi X. Impact of extreme metal contamination at the supra-individual level in a contaminated bay ecosystem. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 557-558:102-109. [PMID: 26994798 DOI: 10.1016/j.scitotenv.2016.03.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 03/07/2016] [Accepted: 03/08/2016] [Indexed: 06/05/2023]
Abstract
Anthropogenic stressors impact the global environment and adversely affect the health of organisms and humans. This study was designed as an attempt to evaluate the ecological consequences of severe metal contamination at the supra-individual level based on a field investigation in Jinzhou Bay (JZB), North China in 2010. The chemical results showed high concentrations of metals in the sediment of JZB that were ~129 times greater than the local geochemical background. Furthermore, the measured metals exhibited considerably high toxicity potential indicated by sediment quality guidelines (SQGs). The mean SQGs quotients suggested the overall toxicity incidence was >70% in locations neighboring the Wulihe River mouth. Biomonitoring revealed 116 individuals distributed among a mere 6 species, 4 of which were polychaetes, at 33% of the sampling sites. Thus, few benthic organisms were present in the damaged community structures across the region, which was consistent with the extreme metal contamination. Moreover, the sediment quality assessment, in a weight of evidence framework, demonstrated that the sediment throughout the entire JZB was moderately to severely impaired, especially in the vicinity of the Wulihe River mouth. By synthesizing the present and previous chemical-biological monitoring campaigns, a possible cause-effect relationship between chemical stressors and benthic receptors was established. We also found that the hydrodynamics, sediment sources, and geochemical characteristics of the metals (in addition to the sources of the metals) were responsible for the geochemical distribution of metals in JZB. The significance of the overall finding is that the deleterious responses observed at the community level may possibly be linked to the extreme chemical stress in the sediment of JZB.
Collapse
Affiliation(s)
- Bin Wu
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, PR China; Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China.
| | - Xuegang Li
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Jinming Song
- Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Limin Hu
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, PR China
| | - Xuefa Shi
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, PR China
| |
Collapse
|
22
|
Wang Z, Lu X, Zhang K. Distribution and contamination of metals and biogenic elements in sediments from Zhifu Bay of the Yellow Sea, China. J Environ Sci (China) 2016; 41:6-15. [PMID: 26969045 DOI: 10.1016/j.jes.2015.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 06/25/2015] [Accepted: 06/26/2015] [Indexed: 06/05/2023]
Abstract
Metals and biogenic elements were analyzed from surface sediments of sixteen stations and a 32cm core collected from Zhifu Bay in July 2009. High concentrations of biogenic silica (BSi) reflected the high diatom productivity in the Bay. Meanwhile, total organic carbon (TOC) in Zhifu Bay was mainly from terrestrial sources. All metals were lower than the marine sediment quality guidelines. Based on the vertical profiles of biogenic elements, there was a clear increase of TOC, total nitrogen (TN), and total phosphate (TP) between 1985 and 2000. TN concentrations decreased after the start of the operation of the sewage treatment plant in 1998; however TOC and BSi remained at high levels. Metal concentrations showed a general increase from the bottom to the top of the core. Most anthropogenic metals reached a maximum during 1996 and 2000, and decreased after the startup of the sewage plant; however, they have increased again recently. The results from correlation analysis and principal component analysis show that industrial pollution is the main source of Cd, Cr, Cu, Ni, Pb and Zn contamination in Zhifu Bay, and Yantai Port and ship transportation also contribute a lot to Cd, Cu, Hg, and Pb pollution.
Collapse
Affiliation(s)
- Zhaohui Wang
- College of Life Science and Technology, Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China.
| | - Xinxin Lu
- College of Life Science and Technology, Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
| | - Ke Zhang
- College of Life Science and Technology, Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
| |
Collapse
|
23
|
Zhang J, Gao X. Heavy metals in surface sediments of the intertidal Laizhou Bay, Bohai Sea, China: Distributions, sources and contamination assessment. MARINE POLLUTION BULLETIN 2015; 98:320-327. [PMID: 26111655 DOI: 10.1016/j.marpolbul.2015.06.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/09/2015] [Accepted: 06/16/2015] [Indexed: 06/04/2023]
Abstract
Surface sediments from the intertidal zone of the southwestern Laizhou Bay were analyzed for heavy metals to seek their concentrations, distributions, pollution status, potential ecological risks and possible sources. The concentrations of As, Cd, Cr, Cu, Hg, Ni, Pb and Zn were in the ranges of 4.65-9.65, 0.11-0.28, 25.85-42.75, 7.57-21.29, 0.022-0.054, 12.85-25.35, 9.65-17.65 and 38.22-73.81μgg(-1) dry sediment weight, respectively. Cd and Hg presented a status of no pollution to moderate pollution and moderate to considerable potential ecological risks; they were enriched to some extent at some sampling stations, while the other studied metals were not. The combined effects of the studied metals in the sediments made them have a 21% probability of being toxic to biota. The results indicated that As, Cr, Cu, Zn, Ni and Pb were mainly from natural contribution, while a significant portion of Cd and Hg was likely from anthropogenic discharges in addition to natural inputs.
Collapse
Affiliation(s)
- Jinfeng Zhang
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; College of Chemistry and Materials Science, Ludong University, Yantai, Shandong 264001, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuelu Gao
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China.
| |
Collapse
|