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Wang F, Zhao D, Lu P, Zhang D, Guo Z, Rose NL, Zhang G. Air-plant interaction and air-soil exchange of polycyclic aromatic hydrocarbons in a large human-influenced reservoir in southwest China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 355:124216. [PMID: 38797350 DOI: 10.1016/j.envpol.2024.124216] [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: 02/05/2024] [Revised: 05/17/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
The Three Gorges Reservoir (TGR) is totally manmade, strongly influenced by anthropogenic activity, and lies on the upper reaches of Yangtze River. The periodic storage and discharge of water from the Three Gorges Dam could have altered the original air-plant/soil interactions of contaminants in TGR. Herein, paired atmospheric gas-particle, air-plant, and air-soil samples were collected to investigate the air-plant interaction and air-soil exchange of 16 USEPA priority polycyclic aromatic hydrocarbons (PAHs). The air-plant interaction based on McLachlan's framework to our datasets suggests that PAHs were absorbed via gaseous deposition that was restricted by the plant-gas dynamic equilibrium. The equilibrium indicates a dynamic balance between the gaseous phase and plant surface in PAH absorption. The main limiting factor influencing the PAH uptake was the plant species rather than the atmospheric PAH concentration. The air-soil exchange of PAHs exhibited a net volatilization flux of 16.71 ng/m2/d from the soil to the air based on annual average. There was more volatilization and less deposition in summer and more deposition and less volatilization in autumn and winter. The soil serves as a secondary source of atmospheric PAHs. As the first attempt on probing the multi-interface geochemical process of PAHs, this study highlights the influence of manual water level manipulation from the TGD and environmental factors (such as temperature, humidity, and soil properties) on the regional fate of PAHs in the TGR.
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Affiliation(s)
- Fengwen Wang
- Key Laboratory of the Three Gorges Reservoir Region' s Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, China; Observation and Research Station of Ecological Restoration for Chongqing Typical Mining Areas, Ministry of Natural Resources, Chongqing Institute of Geology and Mineral Resources, 401120, China.
| | - Daiyin Zhao
- Key Laboratory of the Three Gorges Reservoir Region' s Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Peili Lu
- Key Laboratory of the Three Gorges Reservoir Region' s Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Daijun Zhang
- Key Laboratory of the Three Gorges Reservoir Region' s Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Zhigang Guo
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Institute of Atmospheric Sciences, Department of Environmental Science and Engineering, Fudan University, Shanghai, China
| | - Neil L Rose
- Environmental Change Research Centre, University College London, Gower Street, London, WC1E 6BT, United Kingdom
| | - Gan Zhang
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
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Xie D, Tang L, Huang Y, Lu P, Wang F, Guo H, Rose NL. Understanding the role of atmospheric deposition on the environmental load of per- and polyfluoroalkyl substances: A case study in Three Gorges Reservoir, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174605. [PMID: 38997030 DOI: 10.1016/j.scitotenv.2024.174605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 07/05/2024] [Accepted: 07/06/2024] [Indexed: 07/14/2024]
Abstract
Sixty-nine total suspended particle (TSP) samples, paired with forty-eight surface soil samples, covering four seasons from January 2021 to November 2021, were collected from the Three Gorges Reservoir Region (TGRR). Twenty per- and poly-fluoroalkyl substances (PFASs) were analyzed to evaluate their contamination characteristics and understand the role of atmospheric deposition on the environmental loads in TGRR. The annual average concentrations of PFASs in TSP and soil were 37.2 ± 1.22 pg·m-3 and 0.798 ± 0.134 ng·g-1, respectively. For TSP, concentrations were highest in spring and lowest in summer. For soil, it was in autumn and winter, respectively. The seasonality was more influenced by anthropogenic activities than by meteorological conditions or physicochemical parameters of the soil. Positive matrix fractionation (PMF) indicated that, based on annual averages, PFOA-based products (40.2 %) were the major sources of PFASs in TSP, followed by PFOS-based products (25.2 %) and precursor degradation (34.6 %). The highest source contributor for PFASs in spring was precursor degradation (40.9 %), while in other three seasons, it was PFOA-based products (39.9 %, 40.9 % and 52.0 %, respectively). The mean atmospheric dry and wet deposition fluxes of PFASs were estimated at 4.38 ng·m-2·day-1 and 23.5 ng·m-2·day-1, respectively. The contribution of atmospheric deposition to the inventory mass of PFASs in the surface soil was 22.3 %. These findings fill a gap in knowledge regarding the processes and mechanisms of the occurrence, sources and atmospheric deposition of PFASs in the TGRR.
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Affiliation(s)
- Donghang Xie
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Liang Tang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Yazhou Huang
- Kaizhou District Nature Reserve Management Center, Kaizhou, Chongqing, China
| | - Peili Lu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Fengwen Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, China.
| | - Hai Guo
- Department of Civil and Environmental Engineering, Hong Kong Polytechnic University, Hong Kong, China
| | - Neil L Rose
- Environmental Change Research Centre, University College London, Gower Street, London WC1E 6BT, United Kingdom
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Dong L, Cao Y, Pan X, Lin L, Luo X, Dunzhu N, Hu J. Historical sedimentary and evolutionary characteristics of POPs and EDCs in typical regions of the three Gorges reservoir, China. Heliyon 2024; 10:e32920. [PMID: 38948041 PMCID: PMC11211899 DOI: 10.1016/j.heliyon.2024.e32920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/02/2024] [Accepted: 06/12/2024] [Indexed: 07/02/2024] Open
Abstract
The historical sedimentary and evolutionary characteristics of persistent organic pollutants and endocrine disruptors in typical regions of the Three Gorges Reservoir are scarcely studied. Herein, the 96-year data on contaminated sediment history were reconstructed using Caesium 137 isotope dating. Polychlorinated biphenyl concentrations in the involved sediment cores ranged from non-detected (ND) to 11.39 ng/g. The concentrations of polycyclic aromatic hydrocarbons ranged from ND to 2075.20 ng/g and peaked in the 1970s owing to natural, agricultural and human activities. Further, phthalate esters (PAEs) and heavy metals (HMs) were detected at concentrations ranging from ND to 589.2 ng/g and 12.10-93.67 μg/g, respectively, with highest values recorded in the 1980s owing to rapid industrialisation and insufficient management during China's early reform and development stages. PAE and HM concentrations have increased in recent years, suggesting the need to focus on industrial and agricultural activities that have caused this impact. Although current pollutant concentrations in sediments do not pose a risk to the aquatic ecosystem, they should be continuously monitored.
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Affiliation(s)
- Lei Dong
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan, 430010, PR China
- Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan, 430010, PR China
- Innovation Team for Basin Water Environmental Protection and Governance of Changjiang Water Resources Commission, Wuhan, 430010, PR China
| | - Yueqi Cao
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan, 430010, PR China
- Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan, 430010, PR China
| | - Xiong Pan
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan, 430010, PR China
- Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan, 430010, PR China
- Innovation Team for Basin Water Environmental Protection and Governance of Changjiang Water Resources Commission, Wuhan, 430010, PR China
| | - Li Lin
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan, 430010, PR China
- Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan, 430010, PR China
- Innovation Team for Basin Water Environmental Protection and Governance of Changjiang Water Resources Commission, Wuhan, 430010, PR China
| | - Xiaohe Luo
- The Resettlement Affairs Center for Large and Medium-Sized Water Conservancy and Hydropower Projects in Xizang Autonomous Region, Lhasa 850000, P.R. China
| | - Nima Dunzhu
- The Resettlement Affairs Center for Large and Medium-Sized Water Conservancy and Hydropower Projects in Xizang Autonomous Region, Lhasa 850000, P.R. China
| | - Jiancheng Hu
- School of Environmental Studies, Hubei Polytechnic University, Huangshi 435003, P.R. China
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Zhang X, Yao Z, Yang W, Zhang W, Liu Y, Wang Z, Li W. Distribution, sources, partition behavior and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in the waters and sediments of Lake Ulansuhai, China. MARINE POLLUTION BULLETIN 2024; 200:116072. [PMID: 38290363 DOI: 10.1016/j.marpolbul.2024.116072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/10/2024] [Accepted: 01/21/2024] [Indexed: 02/01/2024]
Abstract
This study represents the first comprehensive investigation of 16 polycyclic aromatic hydrocarbons (PAHs) in the waters and sediments of Lake Ulansuhai. It explores their occurrence, sources, transport behavior, and associated risks to human health and ecosystems. The results revealed that concentrations of ∑PAHs in dissolved phase and sediment with no significant seasonal differences. In contrast, ∑PAHs concentrations in suspended particulate matter were significantly higher during the ice-free period compared to the ice period. Spatially, the northern part of Lake Ulansuhai displayed higher PAHs content. Diagnostic isomeric ratios and PMF models indicated that the PAHs were primarily derived from combustion sources. The distribution of PAHs within water-sediment demonstrated that non-equilibrium status. Fugacity calculations indicated that 2-4 rings PAHs acted as secondary sources of sediment emissions. Toxicity assessment, indicated that PAHs posed no significant carcinogenic risk to humans. Risk quotient values showed that PAHs as low to high ecological risk.
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Affiliation(s)
- Xiaoxue Zhang
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014000, China; Autonomous Region Level Ecological Protection and Comprehensive Utilization Cooperative Innovation Center for the Inner Mongolia Section of the Yellow River Basin, Baotou, 014000, China
| | - Zhi Yao
- Autonomous Region Level Ecological Protection and Comprehensive Utilization Cooperative Innovation Center for the Inner Mongolia Section of the Yellow River Basin, Baotou, 014000, China; School of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou, 014000, China
| | - Wenhuan Yang
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014000, China; Autonomous Region Level Ecological Protection and Comprehensive Utilization Cooperative Innovation Center for the Inner Mongolia Section of the Yellow River Basin, Baotou, 014000, China.
| | - Wenxing Zhang
- Inner Mongolia Ecological Environment Research Institute Co., Ltd, Hohhot, 010000, China
| | - Yizhe Liu
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014000, China; Autonomous Region Level Ecological Protection and Comprehensive Utilization Cooperative Innovation Center for the Inner Mongolia Section of the Yellow River Basin, Baotou, 014000, China
| | - Zhichao Wang
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014000, China; Autonomous Region Level Ecological Protection and Comprehensive Utilization Cooperative Innovation Center for the Inner Mongolia Section of the Yellow River Basin, Baotou, 014000, China
| | - Weiping Li
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014000, China; Autonomous Region Level Ecological Protection and Comprehensive Utilization Cooperative Innovation Center for the Inner Mongolia Section of the Yellow River Basin, Baotou, 014000, China.
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Wang Y, Zhang S, Jin H, Chen J, Zhou K, Chen J, Chen J, Zhu G. Effects of dam building on the occurrence and activity of comammox bacteria in river sediments and their contribution to nitrification. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 864:161167. [PMID: 36572300 DOI: 10.1016/j.scitotenv.2022.161167] [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: 09/26/2022] [Revised: 11/26/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
The recent discovery of complete ammonia oxidizers (comammox) has fundamentally changed our understanding of nitrification. However, studies on the occurrence and activity of comammox bacteria and their contribution to nitrification remain unclear. Here, we investigated the abundance, activity, and diversity of comammox bacteria and their contribution to nitrification in sediments from dammed rivers in winter and summer. Our results indicated that comammox clade A was ubiquitous in all sediment samples and the community structure in comammox varied between the upper and lower reaches, but not on the time scale (winter and summer). Comammox activity in the dammed river sediments in summer was prominently higher than in winter (summer: 1.08 ± 0.52; winter: 0.197 ± 0.148 mg N kg-1 day-1). Furthermore, the activity of comammox bacteria in summer appeared higher in the vicinity of the dammed river and in the Sanjiang estuary, which is located downstream of the dammed river. The activity of ammonia-oxidizing bacteria (AOB) (0.77 ± 0.478 mg N kg-1 day-1) was higher compared to comammox (0.639 ± 0.588 mg N kg-1 day-1) and ammonia-oxidizing archaea (AOA) (0.026 ± 0.022 mg N kg-1 day-1) in both winter and summer. In terms of contribution to the nitrification process, AOB (winter: 67.13 ± 12.21 %; summer: 50.57 ± 16.14 %) outperformed comammox (winter: 28.59 ± 12.51 %; summer: 48.38 ± 16.62 %) and AOA (winter: <7.39 %; summer: <2.09 %). These findings indicated that the nitrification process in dammed river sediments was mainly dominated by AOB. Additionally, comammox activity was significantly affected by temperature and NH4+, suggesting that these variables were key determinants of the niche partitioning of comammox. Collectively, our findings provide novel perspectives into the widespread distribution and contribution of comammox to nitrification in dammed river ecosystems, thus broadening our understanding of the nitrification processes.
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Affiliation(s)
- Yuantao Wang
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Science, Beijing 100049, China; CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315100, China
| | - Shenghua Zhang
- College of Harbour and Coastal Engineering, Jimei University, Xiamen 361021, China.
| | - Huixia Jin
- NingboTech University, Ningbo 315100, China
| | - Jiwei Chen
- Ningbo River Management Center, Ningbo 315100, China
| | - Ketao Zhou
- Ningbo River Management Center, Ningbo 315100, China
| | - Jinxi Chen
- NingboTech University, Ningbo 315100, China
| | - Jinfang Chen
- College of Harbour and Coastal Engineering, Jimei University, Xiamen 361021, China
| | - Guibing Zhu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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Development of interval transient pollution distribution model and its application in the Fenghuangshan drinking water source. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.110037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Shuliakevich A, Muz M, Oehlmann J, Nagengast L, Schröder K, Wolf Y, Brückner I, Massei R, Brack W, Hollert H, Schiwy S. Assessing the genotoxic potential of freshwater sediments after extensive rain events - Lessons learned from a case study in an effluent-dominated river in Germany. WATER RESEARCH 2022; 209:117921. [PMID: 34923444 DOI: 10.1016/j.watres.2021.117921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 11/17/2021] [Accepted: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Wastewater treatment plant effluents and releases from rainwater overflow basins can contribute to the input of genotoxic micropollutants in aquatic ecosystems. Predominantly lipophilic genotoxic compounds tend to sorb to particulate matter, making sediment a source and a sink of pollution. Therefore, the present study aims to investigate the genotoxic potential of freshwater sediments (i) during the dry period and (ii) after extensive rain events by collecting sediment samples in one small anthropogenically impacted river in Germany up- and downstream of the local wastewater treatment plant. The Micronucleus and Ames fluctuation assays with Salmonella typhimurium strains TA98, TA100, YG1041, and YG1042 were used to assess the genotoxic potential of organic sediment extracts. For evaluation of possible genotoxicity drivers, target analysis for 168 chemical compounds was performed. No clastogenic effects were observed, while the genotoxic potential was observed at all sampling sites primarily driven by polycyclic aromatic hydrocarbons, nitroarenes, aromatic amines, and polycyclic heteroarenes. Freshwater sediments' genotoxic potential increased after extensive rain events due to sediment perturbation and the rainwater overflow basin release. In the present study, the rainwater overflow basin was a significant source for particle-bound pollutants from untreated wastewater, suggesting its role as a possible source of genotoxic potential. The present study showed high sensitivity and applicability of the bacterial Salmonella typhimurium strains YG1041 and YG1042 to organic sediment extracts to assess the different classes of genotoxic compounds. A combination of effect-based methods and a chemical analysis was shown as a suitable tool for a genotoxic assessment of freshwater sediments.
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Affiliation(s)
- Aliaksandra Shuliakevich
- Department Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt/Main, Max-von-Laue-Strasse 13, 60438 Frankfurt/Main, Germany
| | - Melis Muz
- Department of Effect-Directed Analysis, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Jörg Oehlmann
- Department Aquatic Ecotoxicology, Goethe University Frankfurt/Main, Max-von-Laue-Strasse 13, 60438 Frankfurt/Main, Germany
| | - Laura Nagengast
- RWTH Aachen University, Institute of Biology V, Worringerweg 1, 52074 Aachen, Germany
| | - Katja Schröder
- RWTH Aachen University, Institute of Biology V, Worringerweg 1, 52074 Aachen, Germany
| | - Yvonne Wolf
- RWTH Aachen University, Institute of Biology V, Worringerweg 1, 52074 Aachen, Germany
| | - Ira Brückner
- Eifel-Rur Waterboard (WVER), Eisenbahnstr. 5, 52354 Düren, Germany
| | - Riccardo Massei
- Department of Bioanalytical Ecotoxicology, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Werner Brack
- Department Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt/Main, Max-von-Laue-Strasse 13, 60438 Frankfurt/Main, Germany; Department of Effect-Directed Analysis, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Henner Hollert
- Department Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt/Main, Max-von-Laue-Strasse 13, 60438 Frankfurt/Main, Germany.
| | - Sabrina Schiwy
- Department Evolutionary Ecology and Environmental Toxicology, Goethe University Frankfurt/Main, Max-von-Laue-Strasse 13, 60438 Frankfurt/Main, Germany
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Chen Z, Fang F, Shao Y, Jiang Y, Huang J, Guo J. The biotransformation of soil phosphorus in the water level fluctuation zone could increase eutrophication in reservoirs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 763:142976. [PMID: 33139007 DOI: 10.1016/j.scitotenv.2020.142976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/27/2020] [Accepted: 10/05/2020] [Indexed: 06/11/2023]
Abstract
The massive amounts of phosphorus (P) entering into rivers and reservoirs may induce eutrophication. However, the link between the transport and transformation of soil P and the dynamics of P availability in reservoir regions are not well demonstrated. The present study selected the Pengxi River suffering the anti-seasonal water level fluctuation of the Three Gorgers Reservoir as the study area. Soil nutrients along the longitudinal and lateral gradients of the Pengxi River were investigated to illustrate the spatial distribution patterns, analyzed by the Hedley extraction schemes. The effects of biotic and abiotic factors on soil P transformation and the dynamics of bioavailable P were evaluated via determinations of enzymatic hydrolysis phosphorus (EHP) with and without ultraviolet (UV) irradiation. The results indicated that soil nutrients varied significantly between the water level fluctuation zone (WLFZ) and upland along the river longitudinal gradients, where the trends of the extracted OP were the same in H2O, NaHCO3 and NaOH extractions. The EHP accounted for 33.67 ± 15.87% of the total extracted OP, of which Monoester P, Phytate-like P and NHOP were determined at all extracts but Diester P was mainly found at H2O and NaOH extracts. UV irradiation significantly increased P bioavailability up to 24.44%. These results could demonstrate the mechanism of soil P transformation via UV irradiation and enzymatic hydrolysis. Therefore, the bioavailable P enters the water body during the submergence period may lead to eutrophication in the Pengxi River, which could pose a risk to the reservoir ecosystem.
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Affiliation(s)
- Zhongli Chen
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Fang Fang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Ying Shao
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Yanxue Jiang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Junjie Huang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Jinsong Guo
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
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Gao Y, Zhang W, Li Y, Wu H, Yang N, Hui C. Dams shift microbial community assembly and imprint nitrogen transformation along the Yangtze River. WATER RESEARCH 2021; 189:116579. [PMID: 33160238 DOI: 10.1016/j.watres.2020.116579] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/24/2020] [Accepted: 10/28/2020] [Indexed: 06/11/2023]
Abstract
Dams are important for flood control, water storage, irrigation, electric generation, navigation, and have been regarded as the largest anthropogenic disturbance in aquatic ecosystems. However, how dams impact nitrogen transformation on a large watershed scale remained less studied. To explicitly address the impact of dams on nitrogen transformation, we used 16S rRNA gene sequencing to investigate the microbial dynamics and ecological processes under different dam conditions along the Yangtze River, as microbial communities are playing a key role in aquatic nitrogen transformation. Compared with landforms, dams exerted a more significant impact on the distribution patterns of microbial communities along the Yangtze River. The results showed that, by controlling suspended sand concentration, dams filtered keystone species, reshaped distribution of metacommunities, and mediated ecological assembly processes of microbial communities. Moreover, direct causal relationships between dams and nitrogen transformation were chained via microbial communities. To summarize, by combining knowledge in hydrology, microbial ecology, and biogeochemistry, this research exhibited the impact of different dams on the nitrogen transformation along a large river, and the key roles of suspended sand and microbial communities were emphasized. We anticipate a more precise modelling and prediction of nitrogen transformation in large watersheds, which may provide new perspectives for controlling the nitrogen in aquatic environments.
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Affiliation(s)
- Yu Gao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Wenlong Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Hainan Wu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Nan Yang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Cizhang Hui
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
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D'Agostini F, La Maestra S. Micronuclei in Fish Erythrocytes as Genotoxic Biomarkers of Water Pollution: An Overview. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 258:195-240. [PMID: 34611757 DOI: 10.1007/398_2021_76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Freshwater and marine water bodies receive chemical contaminants from industrial, agricultural, urban, and domestic wastes. Eco-genotoxicity assays are useful tools to assess the cumulative genotoxicity of these pollutants. Fish are suitable indicators for biomonitoring of mutagenic and carcinogenic pollution.In this review, we present a complete overview of the studies performed so far using the micronucleus test in peripheral erythrocytes of fish exposed to polluted water. We have listed all the species of fish used and the geographical distribution of the investigations. We have analyzed and discussed all technical aspects of using this test in fish, as well as the advantages and disadvantages of the different experimental protocols. We have reported the results of all studies. This assay has become, for years, one of the simplest, fastest, and most cost-effective for assessing genotoxic risk in aquatic environments. However, there are still several factors influencing the variability of the results. Therefore, we have given indications and suggestions to achieve a standardization of experimental procedures and ensure uniformity of future investigations.
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Han X, Wang F, Zhang D, Feng T, Zhang L. Nitrate-assisted biodegradation of polycyclic aromatic hydrocarbons (PAHs) in the water-level-fluctuation zone of the three Gorges Reservoir, China: Insights from in situ microbial interaction analyses and a microcosmic experiment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115693. [PMID: 33002789 DOI: 10.1016/j.envpol.2020.115693] [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: 05/02/2020] [Revised: 09/13/2020] [Accepted: 09/16/2020] [Indexed: 06/11/2023]
Abstract
An increase in polycyclic aromatic hydrocarbon (PAH) pollution poses significant challenges to human and ecosystem health in the Three Gorges Reservoir (TGR) of the Yangtze River. Based on the combination of PAH analysis with qPCR and high-throughput sequencing of bacteria, 32 topsoil samples collected from 16 sites along the TGR were used to investigate the distribution and biodegradation pathways of PAHs in the water-level-fluctuation zone (WLFZ). The results indicated that the concentrations of PAHs were 43.8-228.2 and 30.8-206.3 ng/g soil (dry weight) under the high- and low-water-level (HWL and LWL) conditions, respectively. The PAH concentration in urban areas was higher than that in rural areas. Under both the HWL and LWL conditions, the abundance of the bamA gene, a biomarker of anaerobic PAH biodegradation, was significantly higher than that of the ring-hydroxylating-dioxygenase (RHD) gene, a biomarker of aerobic PAH biodegradation. The abundance of the bamA gene was significantly positively correlated with PAHs (R2 = 0.8), and the biodegradation percentage of PAHs incubated anaerobically was greater than that in the aerobically incubated microcosm experiments. These data implicated a key role of the anaerobic pathway in PAH biodegradation. Co-occurrence network analysis suggested that anaerobic Anaerolineaceae, Dechloromonas, Bacteroidetes_vadin HA17 and Geobacter were key participants in the biodegradation of PAHs. The diversity analysis of functional bacteria based on the bamA gene and microcosm experiments further demonstrated that nitrate was the primary electron acceptor for PAH biodegradation. These findings provide a new perspective on the mechanism of PAH biodegradation in the TGR and knowledge that can be used to develop strategies for environmental management.
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Affiliation(s)
- Xinkuan Han
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China; Department of Environmental Science, Chongqing University, Chongqing, 400044, China
| | - Fengwen Wang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China; Department of Environmental Science, Chongqing University, Chongqing, 400044, China
| | - Daijun Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China; Department of Environmental Science, Chongqing University, Chongqing, 400044, China.
| | - Ting Feng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China; Department of Environmental Science, Chongqing University, Chongqing, 400044, China
| | - Lilan Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China; Department of Environmental Science, Chongqing University, Chongqing, 400044, China
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Jin Q, Liu H, Wei X, Li W, Chen J, Yang W, Qian S, Yao J, Wang X. Dam operation altered profiles of per- and polyfluoroalkyl substances in reservoir. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122523. [PMID: 32197204 DOI: 10.1016/j.jhazmat.2020.122523] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 03/07/2020] [Accepted: 03/11/2020] [Indexed: 06/10/2023]
Abstract
Information on the impact of dam operation on per- and polyfluoroalkyl substances (PFASs) distribution in reservoirs is very limited. In the present study, water, riparian soils and floating wastes samples were collected from the Three Gorges Reservoir, China during the storage and the discharge periods to characterize the PFASs distribution. The total PFASs concentrations of water samples in the storage period (50.4-146 ng/L) were 4.7 times higher than those in the discharge period (1.40-38.6 ng/L). The main types of PFASs in water samples changed from PFOA in the discharge period to short-chain species in the storage period. The main analogues in riparian soils and floating wastes were PFOA and PFOS. Wastes contributed little to PFASs mass in the reservoir, while PFASs accumulated in soils accounted for 49.7 % of the total mass when the riparian zone was submerged during the storage period. Changes in profiles of PFASs caused by dam operation suggested that the potential water safety and the shift of riparian soils between source and sink of PFASs may vary with the annual operation cycle of dam. The water resources protection in reservoirs needs strategies that consider the variation of dam operation cycle.
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Affiliation(s)
- Qiu Jin
- College of Agricultural Science and Engineering, Hohai University, Nanjing 210098, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Huazu Liu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Ecological Sciences and Engineering, Chongqing University, Chongqing 400045, China
| | - Xiaoxiao Wei
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Environmental Engineering, Chongqing University, Chongqing 400045, China
| | - Wei Li
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Ecological Sciences and Engineering, Chongqing University, Chongqing 400045, China.
| | - Jing Chen
- College of Agricultural Science and Engineering, Hohai University, Nanjing 210098, China
| | - Wei Yang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Ecological Sciences and Engineering, Chongqing University, Chongqing 400045, China
| | - Shenhua Qian
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Ecological Sciences and Engineering, Chongqing University, Chongqing 400045, China
| | - Jingmei Yao
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Ecological Sciences and Engineering, Chongqing University, Chongqing 400045, China
| | - Xiaoming Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Environmental Engineering, Chongqing University, Chongqing 400045, China.
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Risjani Y, Loppion G, Couteau J, Yunianta Y, Widowati I, Hermawati A, Minier C. Genotoxicity in the rivers from the Brantas catchment (East Java, Indonesia): occurrence in sediments and effects in Oreochromis niloticus (Linnæus 1758). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:21905-21913. [PMID: 32285390 DOI: 10.1007/s11356-020-08575-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
This paper reports the first data from an integrated study investigating genotoxicity in the Brantas River, Java, Indonesia. Results showed that organic sediment extracts from the sites in the Brantas Delta retained genotoxic compounds identified using the SOS Chromotest and that the Aloo River and, to a lesser extent, the Surabaya River were the most contaminated studied sites. This genotoxicity was attributable to compounds that did not require any bioactivation under the test conditions. Occurrence of genotoxic effects was further investigated in erythrocytes from Nile tilapia, Oreochromis niloticus. High numbers of micronuclei were counted, especially in fish sampled in the rivers of the Brantas Delta. Moreover, cytoplasmic alterations which could be indicative of the presence of lipofuscin were found in the cytoplasm of the fish blood cells, especially in fish from the Aloo, Surabaya and Kalimas rivers. Altogether, our data showed that genotoxicity is occurring in fish living in rivers of the delta of the Brantas River and suggest that sediments from these sites may constitute a major source of pollution and hazard for species living or feeding in the area.
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Affiliation(s)
- Yenny Risjani
- Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, Malang, Indonesia
- BioEcotox Research Center, Universitas Brawijaya, Malang, Indonesia
| | | | | | - Yunianta Yunianta
- BioEcotox Research Center, Universitas Brawijaya, Malang, Indonesia
- Faculty of Agricultural Technology, Universitas Brawijaya, Malang, Indonesia
| | - Ita Widowati
- Faculty of Fisheries and Marine Sciences, Universitas Diponegoro, Semarang, Indonesia
| | - Alfi Hermawati
- Faculty of Fisheries and Marine Sciences, Universitas Udayana, Denpasar, Indonesia
| | - Christophe Minier
- UMR-I 02 SEBIO, University of Le Havre-Normandie, 30 rue Philippe Lebon, Le Havre, France.
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Tiehm A, Hollert H, Yin D, Zheng B. Tai Hu (China): Water quality and processes - From the source to the tap. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 712:135559. [PMID: 31810708 DOI: 10.1016/j.scitotenv.2019.135559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Andreas Tiehm
- Department of Microbiology and Molecular Biology, DVGW-Technologiezentrum Wasser (TZW), Karlsruher Str. 84, 76139 Karlsruhe, Germany.
| | - Henner Hollert
- Department of Evolutionary Ecology and Environmental Toxicology, Faculty Biological Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany; Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany.
| | - Daqiang Yin
- Tongji University, College of Environmental Science & Engineering, No. 1239 Siping Road, Shanghai 200092, China.
| | - Binghui Zheng
- Chinese Research Academy of Environmental Science, No. 8 Anwai Dayangfang, Beijing 100012, China.
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15
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Shi Y, Liu J, Zhuo L, Yan X, Cai F, Luo W, Ren M, Liu Q, Yu Y. Antibiotics in wastewater from multiple sources and surface water of the Yangtze River in Chongqing in China. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:159. [PMID: 32016688 DOI: 10.1007/s10661-020-8108-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Antibiotic contamination attracts growing concerns because of their deleterious effects on the ecosystem and human health. In this study, 43 antibiotics in wastewater from a variety of sources and water of the Yangtze River in Chongqing City in western China were measured. Thirty compounds were detected, and their concentrations were highest in leachates from the municipal solid waste treatment facilities (landfills and incineration plants) with total concentrations of 3584-57,106 ng/L. The total concentrations in influents of municipal and industrial wastewater treatment plants (WWTPs) were comparable (401-7994 ng/L versus 640-8945 ng/L). The concentrations in raw sewage from swine farms (with a total of 10,219-39,195 ng/L) and poultry farms (1419-36,027 ng/L) were noticeably higher than those from other farms (54.0-5516 ng/L). Fluoroquinolones were the dominant antibiotics contributing over 50% in all the sources, and sulfonamides and imidazole fungicides contributed 3.2-34%, whereas tetracyclines and macrolides had minor contributions. The overall antibiotic removal rates were highest in solid waste treatment facilities (88% on average), comparable between municipal and industrial WWTPs (61%), and lowest in animal farms (39%). The mass loads to the investigated municipal WWTPs via influent wastewater ranged from 7.80 to 1531 kg/year (53.2-2482 μg/day per capital). The influent mass loads to the industrial WWTPs and farms were 3.7-50 kg/year and 0.9-5437 g/year, respectively. We estimated that the mass inventories of antibiotics from these sources to the environment via effluent discharges were approximately 2044 kg for municipal WWTPs, 61 kg for industrial WWTPs, and 34 kg for animal farms in the whole city. Antibiotic concentrations in the Yangtze River water were substantially low (< 492 ng/L, with a mean of 57.8 ng/L) suggesting dissipation during the movement.
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Affiliation(s)
- Yungang Shi
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, Ministry of Ecology and Environment, South China Institute of Environmental Sciences, Guangzhou, 510655, China
- Chongqing Solid Waste Management Center, Chongqing, 401147, China
| | - Jialie Liu
- Chongqing Solid Waste Management Center, Chongqing, 401147, China
| | - Li Zhuo
- Chongqing Solid Waste Management Center, Chongqing, 401147, China
| | - Xiao Yan
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, Ministry of Ecology and Environment, South China Institute of Environmental Sciences, Guangzhou, 510655, China
| | - Fengshan Cai
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, Ministry of Ecology and Environment, South China Institute of Environmental Sciences, Guangzhou, 510655, China
| | - Weikeng Luo
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, Ministry of Ecology and Environment, South China Institute of Environmental Sciences, Guangzhou, 510655, China
| | - Mingzhong Ren
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, Ministry of Ecology and Environment, South China Institute of Environmental Sciences, Guangzhou, 510655, China
| | - Qiang Liu
- Chongqing Solid Waste Management Center, Chongqing, 401147, China.
| | - Yunjiang Yu
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, Ministry of Ecology and Environment, South China Institute of Environmental Sciences, Guangzhou, 510655, China.
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16
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Omwoma S, Mbithi BM, Pandelova M, Ssebugere P, Lalah JO, Wang Y, Bi Y, Henkelmann B, Schramm KW. Comparative exposomics of persistent organic pollutants (PCBs, OCPs, MCCPs and SCCPs) and polycyclic aromatic hydrocarbons (PAHs) in Lake Victoria (Africa) and Three Gorges Reservoir (China). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 695:133789. [PMID: 31419683 DOI: 10.1016/j.scitotenv.2019.133789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 08/04/2019] [Accepted: 08/04/2019] [Indexed: 06/10/2023]
Abstract
Exposomics is assessment of organism exposure to high priority environmental pollutants in an ecosystem using OMIC technologies. A virtual organism (VO) is an artificial property-tool (OMIC) reflecting exposomic process in compartments of real organisms. The exposomics of aquatic organisms inhabiting Lake Victoria (L.V.) and Three Gorges Reservoir (TGR) were compared using VOs. The two reservoirs are heavily depended on for food and water both in Africa and China. The target priority pollutants in the reservoirs were polyclic aromatic hydrocarbons (PAHs) and persistent organic pollutants such as polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), medium chain chlorinated paraffins (MCCPs) and short chain chlorinated paraffins (SCCPs). The VOs showed that in a period of 28 days, aquatic organisms in TGR were exposed to total (∑) PAHs of 8.71 × 10-6 mg/L, PCBs of 2.81 × 10-6 mg/L, OCPs of 2.80 × 10-6 mg/L, MCCPs of 8.9 × 10-10 mg/L and SCCPs of 1.13 × 10-7 mg/L. While in a period of 48 days, organisms in L. V. were exposed to total (∑) PAHs of 7.45 × 10-6 mg/L, PCBs of 4.70 × 10-6 mg/L, OCPs of 3.39 × 10-8 mg/L, MCCPs of 4.6 × 10-10 mg/L and SCCPs of 3.6 × 10-9 mg/L. The exposomic levels in TGR after 28 days were higher than those in Lake Victoria after 48 days. In both reservoirs, bioaccumulation levels are above set standards for aquatic organisms. The sources of the pollutants into the reservoirs were diagnostically determined to originate from anthropogenic processes such as petrogenic, diesel emissions, biomass burning, coal combustion, electronic wastes, traffic emissions and historic uses.
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Affiliation(s)
- Solomon Omwoma
- Department of Physical Sciences, Jaramogi Oginga Odinga University of Science and Technology, P. O. Box 210-40601, Bondo, Kenya.
| | | | - Marchela Pandelova
- Helmholtz Zentrum Muenchen, German National Research Centre for Environmental Health (GmbH), Molecular EXposomics (MEX), Ingolstaedter Landstrasse 1, Neuherberg, Munich, Germany
| | - Patrick Ssebugere
- Department of Chemistry, College of Natural Sciences, Makerere University, P.O Box 7062, Kampala. Uganda
| | - Joseph O Lalah
- Department of Chemical Science and Technology, Technical University of Kenya, P.O.Box 52428-00200, Nairobi, Kenya
| | - Yawei Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, 18 Shuangqing Road, Haidian District, Beijing 100085, People's Republic of China
| | - Yonghong Bi
- The State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, CAS, Wuhan 430072, People's Republic of China
| | - Bernhard Henkelmann
- Helmholtz Zentrum Muenchen, German National Research Centre for Environmental Health (GmbH), Molecular EXposomics (MEX), Ingolstaedter Landstrasse 1, Neuherberg, Munich, Germany
| | - Karl-Werner Schramm
- Helmholtz Zentrum Muenchen, German National Research Centre for Environmental Health (GmbH), Molecular EXposomics (MEX), Ingolstaedter Landstrasse 1, Neuherberg, Munich, Germany; TUM, Wissenschaftszentrum Weihenstephan für Ernährung, Landnutzung und Umwelt, Department für Biowissenschaftliche Grundlagen, Weihenstephaner Steig 23, 85350 Freising, Germany
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17
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Lima ARB, Torres RA, Jacobina UP, Pinheiro MAA, Adam ML. Genomic damage in Mugil curema (Actinopterygii: Mugilidae) reveals the effects of intense urbanization on estuaries in northeastern Brazil. MARINE POLLUTION BULLETIN 2019; 138:63-69. [PMID: 30660314 DOI: 10.1016/j.marpolbul.2018.07.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 07/01/2018] [Accepted: 07/12/2018] [Indexed: 05/06/2023]
Abstract
The largest metropolitan centers in northeastern region of Brazil are all located near the coast, and industrial, tourist, and agro-industrial activities are the principal causes of water contamination due to discharges of untreated sewage. Adverse environmental conditions can often be detected by analyzing the genetic material of organisms exposed to pollutants, and furnish an overview of environmental quality. We evaluated possible damage to the DNA of one of the fish resources most widely consumed and commercialized by coastal communities in northeastern Brazil, Mugil curema ("tainha"). Erythrocytes from M. curema were analyzed by the presence of micronuclei and by comet assay (single cell gel electrophoresis, SCGE). Statistical comparisons to both tests revealed considerably greater genomic damage in polluted estuaries than in the control site (p < 0.05), suggesting strong genotoxic impacts on the specimens evaluated, principally among those taken near localities with dense demographic and industrial development.
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Affiliation(s)
- Anderson R B Lima
- Centro de Biociências, Programa de Pós-Graduação em Ciências Biológicas - PPGCB, Av. Prof. Moraes Rego, 1235, Universidade Federal de Pernambuco - UFPE, Cidade Universitária, Recife, Pernambuco, Brazil; Centro de Biociências, Departamento de Zoologia, Laboratório de Genômica Evolutiva e Ambiental- LAGEA, Rua Prof. Nelson Chaves, s/n, Universidade Federal de Pernambuco - UFPE, Cidade Universitária, Recife, Pernambuco, Brazil.
| | - Rodrigo A Torres
- Centro de Biociências, Departamento de Zoologia, Laboratório de Genômica Evolutiva e Ambiental- LAGEA, Rua Prof. Nelson Chaves, s/n, Universidade Federal de Pernambuco - UFPE, Cidade Universitária, Recife, Pernambuco, Brazil.
| | - Uedson P Jacobina
- Centro de Biociências, Departamento de Zoologia, Laboratório de Genômica Evolutiva e Ambiental- LAGEA, Rua Prof. Nelson Chaves, s/n, Universidade Federal de Pernambuco - UFPE, Cidade Universitária, Recife, Pernambuco, Brazil
| | - Marcelo A A Pinheiro
- Laboratório de Biologia de Crustáceos - Praça Infante D. Henrique, s/n, Universidade Estadual Paulista - UNESP, Campus Experimental do Litoral Paulista (CLP), São Vicente, São Paulo, Brazil.
| | - Mônica L Adam
- Centro Acadêmico de Vitória - CAV, Rua do Alto do Reservatório, s/n, Universidade Federal de Pernambuco - UFPE, Bela Vista, Vitória de Santo Antão, Pernambuco, Brazil
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18
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Scholz-Starke B, Bo L, Holbach A, Norra S, Floehr T, Hollert H, Roß-Nickoll M, Schäffer A, Ottermanns R. Simulation-based assessment of the impact of fertiliser and herbicide application on freshwater ecosystems at the Three Gorges Reservoir in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 639:286-303. [PMID: 29791882 DOI: 10.1016/j.scitotenv.2018.05.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 05/03/2018] [Accepted: 05/04/2018] [Indexed: 06/08/2023]
Abstract
Dams have profound impacts on river ecosystems, amongst them inundation of land, altered dynamics of the water body or uprising reservoir backwaters influencing tributary or upstream river sections. Along the outstandingly ecologically important Yangtze River in China, the Three Gorges Reservoir (TGR) is the largest project, covering an area of 1080 km2. From the beginning, the dam-project came in for criticism on increasing environmental risks due to sub-merging former industrial and urban areas. We simulated dynamics of biotic and abiotic components of the TGR ecosystem (trophic guilds of aquatic organisms, hydrodynamics, nutrients), as well as the behaviour of the herbicidal substance propanil and its metabolites 3,4-Dichloroaniline (DCA) and 3,3',4,4'-tetrachloroazoxybenzene (TCAB). A modelling environment, provided by the AQUATOX software, was adapted to the specific situation at a tributary reach to the Yangtze river 'Daning River'. As the simulated food web contained several interconnected trophic levels, a significant biomagnification of metabolites was demonstrated by our simulation studies. In particular, newly emerging stagnant downstream sections of tributaries exhibited high probabilities due to accumulating pesticides from upstream sources. The common problem of algal blooms in the TGR-region was addressed by dose-response simulation experiments with essential nutrients. Impacts on structure and abundance of populations of aquatic organisms were shown. However, even high nutrient loads resulted in only slight changes of densities of organisms of all trophic levels. Nevertheless, the probabilities for large-scale algal blooms affecting drinking water quality were considered low because of high flow velocities and discharge rates towards the Yangtze River. We see high potential of simulation-based assessments that provide information for risk managers dealing with whole catchment areas. They are put in the position to differentiate the magnitude of impacts of various factors and decide about the most effective remediation measures.
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Affiliation(s)
- Björn Scholz-Starke
- Institute for Environmental Research, RWTH Aachen University, Aachen, Germany.
| | - Li Bo
- Faculty of Architecture and Urban Planning, Chongqing University, Chongqing, PR China
| | - Andreas Holbach
- Institute of Applied Geosciences, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Stefan Norra
- Institute of Applied Geosciences, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Tilman Floehr
- Institute for Environmental Research, RWTH Aachen University, Aachen, Germany
| | - Henner Hollert
- Institute for Environmental Research, RWTH Aachen University, Aachen, Germany; College of Resources and Environmental Science, Chongqing University, Chongqing, PR China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, PR China; Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai, PR China
| | - Martina Roß-Nickoll
- Institute for Environmental Research, RWTH Aachen University, Aachen, Germany; College of Resources and Environmental Science, Chongqing University, Chongqing, PR China
| | - Andreas Schäffer
- Institute for Environmental Research, RWTH Aachen University, Aachen, Germany; College of Resources and Environmental Science, Chongqing University, Chongqing, PR China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, PR China
| | - Richard Ottermanns
- Institute for Environmental Research, RWTH Aachen University, Aachen, Germany
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Biosafety assessment of water samples from Wanzhou watershed of Yangtze Three Gorges Reservior in the quiet season in Caenorhabditis elegans. Sci Rep 2018; 8:14102. [PMID: 30237459 PMCID: PMC6148280 DOI: 10.1038/s41598-018-32296-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 08/28/2018] [Indexed: 12/22/2022] Open
Abstract
We here employed a model animal of Caenorhabditis elegans to perform toxicity assessment of original surface water samples collected from Three Gorges Reservoir (TGR) in the quiet season in Wanzhou, Chongqing. Using some sublethal endpoints, including lifespan, body length, locomotion behavior, brood size, and intestinal reactive oxygen species (ROS) induction, we found that the examined five original surface water samples could not cause toxicity on wild-type nematodes. Nevertheless, the surface water sample collected from backwater area induced the significant increase in expressions of genes (sod-2 and sod-3) encoding Mn-SODs in wild-type nematodes. Among the examined five original surface water samples, exposure to the original surface water sample collected from backwater area could further cause the toxicity in decreasing locomotion behavior and in inducing intestinal ROS production in sod-3 mutant nematodes. Moreover, the solid phase of surface water sample collected from backwater area might mainly contribute to the observed toxicity in sod-3 mutant nematodes. Our results are helpful for understanding the potential effects of surface water in the TGR region in the quiet season on environmental organisms.
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Jiang T, Wang D, Wei S, Yan J, Liang J, Chen X, Liu J, Wang Q, Lu S, Gao J, Li L, Guo N, Zhao Z. Influences of the alternation of wet-dry periods on the variability of chromophoric dissolved organic matter in the water level fluctuation zone of the Three Gorges Reservoir area, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 636:249-259. [PMID: 29705437 DOI: 10.1016/j.scitotenv.2018.04.262] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/19/2018] [Accepted: 04/20/2018] [Indexed: 06/08/2023]
Abstract
Dissolved organic matter (DOM) is a crucial driver of various biogeochemical processes in aquatic systems. Thus, many lakes and streams have been investigated in the past several decades. However, fewer studies have sought to understand the changes in DOM characteristics in the waters of the Three Gorges Reservoir (TGR) areas, which are the largest artificial reservoir areas in the world. Thus, a field investigation of dissolved organic carbon (DOC) concentrations and of chromophoric dissolved organic matter (CDOM) properties was conducted from 2013 to 2015 to track the spatial-temporal variability of DOM properties in the TGR areas. The results showed that the alternations of wet and dry periods due to hydrological management have a substantial effect on the quantity and quality of aquatic DOM in TGR areas. Increases in DOC concentrations in the wet period show an apparent "dilution effect" that decreases CDOM compounds with relatively lower aromaticity (i.e., SUVA254) and molecular weight (i.e., SR). In contrast to the obvious temporal variations of DOM, significant spatial variability was not observed in this study. Additionally, DOM showed more terrigenous characteristics in the dry period but weak terrigenous characteristics in the wet period. Furthermore, the positive correlation between SUVA254 and CDOM suggests that the aromatic component controls the CDOM dynamics in TGR areas. The first attempt to investigate the DOM dynamics in TGR areas since the Three Gorges Dam was conducted in 2012, and the unique patterns of spatial-temporal variations in DOM that are highlighted in this study might provide a new insight for understanding the role of DOM in the fates of contaminants and may help in the further management of flow loads and water quality in the TGR area.
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Affiliation(s)
- Tao Jiang
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå SE-90183, Sweden.
| | - Dingyong Wang
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Shiqiang Wei
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Jinlong Yan
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Jian Liang
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Xueshuang Chen
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Jiang Liu
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Qilei Wang
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Song Lu
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Jie Gao
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Lulu Li
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Nian Guo
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Zheng Zhao
- Department of Environmental Science and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
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21
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Xie Y, Floehr T, Zhang X, Xiao H, Yang J, Xia P, Burton GA, Hollert H. In situ microbiota distinguished primary anthropogenic stressor in freshwater sediments. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 239:189-197. [PMID: 29655065 DOI: 10.1016/j.envpol.2018.03.099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 03/17/2018] [Accepted: 03/27/2018] [Indexed: 05/10/2023]
Abstract
Conventional assessment and evaluation of sediment quality are based on laboratory-based ecotoxicological and chemical measurements with lack of concern for ecological relevance. Microbiotas in sediment are responsive to pollutants and can be used as alternative ecological indicators of sediment pollutants; however, the linkage between the microbial ecology and ecotoxicological endpoints in response to sediment contamination has been poorly evaluated. Here, in situ microbiotas from the Three Gorges Reservoir (TGR) area of the Yangtze River were characterized by DNA metabarcoding approaches, and then, changes of in situ microbiotas were compared with the ecotoxicological endpoint, aryl hydrocarbon receptor (AhR) mediated activity, and level of polycyclic aromatic hydrocarbons (PAHs) in sediments. PAHs and organic pollutant mixtures mediating AhR activity had different effects on the structures of microbiotas. Specifically, Shannon indices of protistan communities were negatively correlated with the levels of AhR mediated activity and PAHs. The sediment AhR activity was positively correlated with the relative abundance of prokaryotic Acetobacteraceae, but had a negative correlation with protistan Oxytrichidae. Furthermore, a quantitative classification model was built to predict the level of AhR activity based on the relative abundances of Acetobacteraceae and Oxytrichidae. These results suggested that in situ Protista communities could provide a useful tool for monitoring and assessing ecological stressors. The observed responses of microbial community provided supplementary evidence to support that the AhR-active pollutants, such as PAHs, were the primary stressors of the aquatic community in TGR area.
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Affiliation(s)
- Yuwei Xie
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Tilman Floehr
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Xiaowei Zhang
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing, China.
| | - Hongxia Xiao
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Jianghua Yang
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Pu Xia
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - G Allen Burton
- School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI, USA
| | - Henner Hollert
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Aachen, Germany
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22
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Lin L, Dong L, Meng X, Li Q, Huang Z, Li C, Li R, Yang W, Crittenden J. Distribution and sources of polycyclic aromatic hydrocarbons and phthalic acid esters in water and surface sediment from the Three Gorges Reservoir. J Environ Sci (China) 2018; 69:271-280. [PMID: 29941263 DOI: 10.1016/j.jes.2017.11.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 11/04/2017] [Accepted: 11/06/2017] [Indexed: 06/08/2023]
Abstract
After the impoundment of the Three Gorges Reservoir (TGR), the hydrological situation of the reservoir has changed greatly. The concentration and distribution of typical persistent organic pollutants in water and sediment have also changed accordingly. In this study, the concentration, distribution and potential sources of 16 polycyclic aromatic hydrocarbons (PAHs) and 6 phthalic acid esters (PAEs) during the water drawdown and impoundment periods were investigated in water and sediment from the TGR. According to our results, PAHs and PAEs showed temporal and spatial variations. The mean ΣPAH and ΣPAE concentrations in water and sediment were both higher during the water impoundment period than during the water drawdown period. The water samples from the main stream showed larger ΣPAH concentration fluctuations than those from tributaries. Both the PAH and PAE concentrations meet the Chinese national water environmental quality standard (GB 3838-2002). PAH monomers with 2-3 rings and 4 rings were dominant in water, and 4-ring and 5-6-ring PAHs were dominant in sediment. Di-n-butyl phthalate (DBP) and di-2-ethylhexyl phthalate (DEHP) were the dominant PAE pollutants in the TGR. DBP and DEHP had the highest concentrations in water and sediment, respectively. The main source of PAHs in water from the TGR was petroleum and emissions from coal and biomass combustion, whereas the main sources of PAHs in sediments included coal and biomass combustion, petroleum, and petroleum combustion. The main source of PAEs in water was domestic waste, and the plastics and heavy chemical industries were the main sources of PAEs in sediment.
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Affiliation(s)
- Li Lin
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China; Brook Byers Institute of Sustainable Systems, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Lei Dong
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China
| | - Xiaoyang Meng
- Brook Byers Institute of Sustainable Systems, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Qingyun Li
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China
| | - Zhuo Huang
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China
| | - Chao Li
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China
| | - Rui Li
- Basin Water Environmental Research Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan 430010, China
| | - Wenjun Yang
- Administration Office, Changjiang River Scientific Research Institute, Wuhan 430010, China.
| | - John Crittenden
- Brook Byers Institute of Sustainable Systems, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Xiao G, Zhao L, Huang Q, Yang J, Du H, Guo D, Xia M, Li G, Chen Z, Wang D. Toxicity evaluation of Wanzhou watershed of Yangtze Three Gorges Reservior in the flood season in Caenorhabditis elegans. Sci Rep 2018; 8:6734. [PMID: 29712953 PMCID: PMC5928115 DOI: 10.1038/s41598-018-25048-w] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/12/2018] [Indexed: 01/08/2023] Open
Abstract
Three Gorges Reservoir (TGR) in the upper stream of Yangtze River in China is a reservoir with the largest and the longest yearly water-level drop. Considering the fact that most of safety assessments of water samples collected from TGR region were based on chemical analysis, we here employed Caenorhabditis elegans to perform in vivo safety assessment of original surface water samples collected from TGR region in the flood season in Wanzhou, Chongqing. Among the examined five original surface water samples, only exposure to original surface water sample collected from backwater area could induce the significant intestinal ROS production, enhance the intestinal permeability, and decrease the locomotion behavior. Additionally, exposure to original surface water sample collected from backwater area altered the expressions of sod-2, sod-5, clk-1, and mev-1. Moreover, mutation of sod-2 or sod-5 was susceptible to the potential toxicity of original surface water sample collected from backwater area on nematodes. Together, our results imply that exposure to surface water sample from the backwater area may at least cause the adverse effects on intestinal function and locomotion behavior in nematodes.
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Affiliation(s)
- Guosheng Xiao
- College of Biology and Food Engineering, Chongqing Three Gorges University, Wanzhou, 404100, China
| | - Li Zhao
- Medical School, Southeast University, Nanjing, 210009, China
| | - Qian Huang
- College of Biology and Food Engineering, Chongqing Three Gorges University, Wanzhou, 404100, China
| | - Junnian Yang
- College of Biology and Food Engineering, Chongqing Three Gorges University, Wanzhou, 404100, China
| | - Huihui Du
- College of Biology and Food Engineering, Chongqing Three Gorges University, Wanzhou, 404100, China
| | - Dongqin Guo
- College of Biology and Food Engineering, Chongqing Three Gorges University, Wanzhou, 404100, China
| | - Mingxing Xia
- Wanzhou Entry-Exit Inspection and Quarantine Bureau, Wanzhou, 404100, China
| | - Guangman Li
- Wanzhou Entry-Exit Inspection and Quarantine Bureau, Wanzhou, 404100, China
| | - Zongxiang Chen
- Wanzhou Entry-Exit Inspection and Quarantine Bureau, Wanzhou, 404100, China
| | - Dayong Wang
- Medical School, Southeast University, Nanjing, 210009, China.
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24
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Jiang T, Chen X, Wang D, Liang J, Bai W, Zhang C, Wang Q, Wei S. Dynamics of dissolved organic matter (DOM) in a typical inland lake of the Three Gorges Reservoir area: Fluorescent properties and their implications for dissolved mercury species. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 206:418-429. [PMID: 29102844 DOI: 10.1016/j.jenvman.2017.10.048] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 10/20/2017] [Accepted: 10/22/2017] [Indexed: 06/07/2023]
Abstract
Dissolved organic matter (DOM) plays an important environmental and ecological role in inland aquatic systems, including lakes. In this study, using fluorescence analysis, we investigated the seasonal dynamics of DOM characteristics in Changshou Lake, which is a typical inland lake in the Three Gorges Reservoir (TGR) area. We also discuss the environmental implications of DOM for mercury (Hg) dynamics. Based on the origins of two end-members, the variations in DOM observed in this study in Changshou Lake suggest that hydrological processes (e.g., terrestrial inputs resulting from runoff and humic-like component residences) and biological activities (e.g., microbial and algae growth) are the two main principal components controlling the seasonal dynamics of DOM characteristics. Furthermore, the dynamics of dissolved Hg co-varied with variations in DOM properties, rather than with dissolved organic carbon (DOC) concentrations. This indicates that the previously reported simple correlations between DOC and Hg were not comprehensive and may lead to misunderstanding the interactions between DOM and Hg. Therefore, we recommend that when using DOM-Hg correlations to evaluate the role of DOM in the environmental fate of Hg, especially in field investigations of the spatial and temporal distribution of Hg, the properties of DOM must be taken into account.
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Affiliation(s)
- Tao Jiang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400716, China; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, SE-90183, Sweden; Environmental Geochemistry Laboratory of Natural Organic Matter, College of Resources and Environment, Southwest University, Chongqing, 400716, China.
| | - Xueshuang Chen
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400716, China; Environmental Geochemistry Laboratory of Natural Organic Matter, College of Resources and Environment, Southwest University, Chongqing, 400716, China
| | - Dingyong Wang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400716, China
| | - Jian Liang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400716, China; Environmental Geochemistry Laboratory of Natural Organic Matter, College of Resources and Environment, Southwest University, Chongqing, 400716, China; College of Chemistry and Environmental Engineering, Baise University, Guangxi, 533000, China
| | - Weiyang Bai
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400716, China; College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Cheng Zhang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400716, China
| | - Qilei Wang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400716, China; Environmental Geochemistry Laboratory of Natural Organic Matter, College of Resources and Environment, Southwest University, Chongqing, 400716, China
| | - Shiqiang Wei
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400716, China.
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25
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Jiang T, Kaal J, Liang J, Zhang Y, Wei S, Wang D, Green NW. Composition of dissolved organic matter (DOM) from periodically submerged soils in the Three Gorges Reservoir areas as determined by elemental and optical analysis, infrared spectroscopy, pyrolysis-GC-MS and thermally assisted hydrolysis and methylation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017. [PMID: 28641186 DOI: 10.1016/j.scitotenv.2017.06.114] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Soil-derived dissolved organic matter (DOM) has a major influence in biogeochemical processes related to contaminant dynamics and greenhouse gas emissions, due to its reactivity and its bridging role between the soil and aquatic systems. Within the Three Gorges Reservoir (TGR, China) area, an extensive water-fluctuation zone periodically submerges the surrounding soils. Here we report a characterization study of soil-derived DOM across the TGR areas, using elemental and optical analysis, infrared spectroscopy (FTIR), pyrolysis-GC-MS (Py-GC-MS) and thermally assisted hydrolysis and methylation (THM-GC-MS). The results showed that the soil DOM from the TGR area is a mixture of "allochthonous" (i.e., plant-derived/terrigenous) and "autochthonous" (i.e., microbial) origins. The terrigenous DOM is composed primarily of phenolic and aliphatic structures from lignin and aliphatic biopolymers (i.e. cutin, suberin), respectively. Multivariate statistics differentiated between two fractions of the microbial DOM, i.e. chitin-derived, perhaps from fungi and arthropods in soil, and protein-derived, partially sourced from algal or aquatic organisms. Molecular proxies of source and degradation state were in good agreement with optical parameters such as SUVA254, the fluorescence index (FI) and the humification index (HIX). The combined use of elemental analysis, fluorescence spectroscopy, and Py-GC-MS provides rigorous and detailed DOM characterization, whereas THM-GC-MS is useful for more precise but qualitative identification of the different phenolic (cinnamyl, p-hydroxyphenyl, guaiacyl, syringyl and tannin-derived) and aliphatic materials. With the multi-methodological approach used in this study, FTIR was the least informative, in part, because of the interference of inorganic matter in the soil DOM samples. The soil DOM from the TGR's water fluctuation zone exhibited considerable compositional diversity, mainly related to the balance between DOM source (microbial- or plant-derived), local vegetation and anthropogenic activities (e.g., agriculture). Finally, the relationship between DOM composition and its potential reactivity with substances of environmental concerns in the TGR area are also discussed.
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Affiliation(s)
- Tao Jiang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing 400716, China; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå SE-90183, Sweden.
| | - Joeri Kaal
- Ciencia do Sistema Terra, Departamento de Edafoloxía e Química Agrícola, Universidade de Santiago de Compostela, Campus Sur s/n, Santiago de Compostela 15782, Spain; Instituto de Ciencias del Patrimonio (Incipit), Consejo Superior de Investigaciones Científicas (CSIC), Avda. de Vigo sn, 15705 Santiago de Compostela, Spain
| | - Jian Liang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Yaoling Zhang
- Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China
| | - Shiqiang Wei
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Dingyong Wang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Nelson W Green
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States
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Peng Y, Zhou F, Cui J, Du K, Leng Q, Yang F, Chan A, Zhao H. Impact of socioeconomic and meteorological factors on reservoirs' air quality: a case in the Three Gorges Reservoir of Chongqing (TGRC), China over a 10-year period. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:16206-16219. [PMID: 28540543 DOI: 10.1007/s11356-017-9221-0] [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: 01/13/2017] [Accepted: 05/08/2017] [Indexed: 06/07/2023]
Abstract
The Three Gorges Dam's construction and industrial transfer have resulted in a new air pollution pattern with the potential to threaten the reservoir eco-environment. To assess the impact of socioeconomic factors on the pattern of air quality vairation and economical risks, concentrations of SO2, NO2, and PM10, industry genres, and meteorological conditions were selected in the Three Gorges Reservoir of Chongqing (TGRC) during 2006-2015. Results showed that air quality had improved to some extent, but atmospheric NO2 showed an increased trend during 2011-2015. Spatially, higher atmospheric NO2 extended to the surrounding area. The primary industry, especially for agriculture, had shown to be responsible for the remarkable increase of atmospheric NO2 (p < 0.01) due to the direct burning of agricultural straws and the emission of livestock breeding. The improvement of regional industrial structure and industrialization benefited air pollutant reductions, but construction industries had inhibited the improvement of regional air quality. In the tertiary industry, the cargo industry at ports had significantly decreased atmospheric NO2 as a result of eliminating the obsoleted small ships. Contrarily, the highway transportation had brought more air pollutants. The relative humidity was shown to be the main meteorological factor, which had an extremely remarkable relation with atmospheric SO2 (p < 0.01) and a significant correlation with atmospheric NO2 (p < 0.05), respectively. In the future, the development of agriculture and livestock breeding would make regional air quality improvement difficult, and atmospheric SO2, NO2, and PM10 deposition would aggravate regional soil and water acidification and reactivate heavy metal in soil and sediment, further to pose a high level of ecological risk in the TGRC and other countries with reservoirs in the world.
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Affiliation(s)
- Ying Peng
- Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fengwu Zhou
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Jian Cui
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
| | - Ke Du
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, T2N 1N4, Canada
| | - Qiangmei Leng
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Fumo Yang
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
| | - Andy Chan
- Department of Civil Engineering, University of Nottingham Malaysia Campus, Semenyih, Malaysia
| | - Hongting Zhao
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China
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27
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Xiao H, Brinkmann M, Thalmann B, Schiwy A, Große Brinkhaus S, Achten C, Eichbaum K, Gembé C, Seiler TB, Hollert H. Toward Streamlined Identification of Dioxin-like Compounds in Environmental Samples through Integration of Suspension Bioassay. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:3382-3390. [PMID: 28190338 DOI: 10.1021/acs.est.6b06003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Effect-directed analysis (EDA) is a powerful strategy to identify biologically active compounds in environmental samples. However, in current EDA studies, fractionation and handling procedures are laborious, consist of multiple evaporation steps, and thus bear the risk of contamination and decreased recoveries of the target compounds. The low resulting throughput has been one of the major bottlenecks of EDA. Here, we propose a high-throughput EDA (HT-EDA) work-flow combining reversed phase high-performance liquid chromatography fractionation of samples into 96-well microplates, followed by toxicity assessment in the micro-EROD bioassay with the wild-type rat hepatoma H4IIE cells, and chemical analysis of bioactive fractions. The approach was evaluated using single substances, binary mixtures, and extracts of sediment samples collected at the Three Gorges Reservoir, Yangtze River, China, as well as the rivers Rhine and Elbe, Germany. Selected bioactive fractions were analyzed by highly sensitive gas chromatography-atmospheric pressure laser ionization-time-of-flight-mass spectrometry. In addition, we optimized the work-flow by seeding previously adapted suspension-cultured H4IIE cells directly into the microplate used for fractionation, which makes any transfers of fractionated samples unnecessary. The proposed HT-EDA work-flow simplifies the procedure for wider application in ecotoxicology and environmental routine programs.
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Affiliation(s)
| | - Markus Brinkmann
- Toxicology Centre and School of Environment and Sustainability, University of Saskatchewan , Saskatoon, Saskatchewan S7N 5B3, Canada
| | | | | | - Sigrid Große Brinkhaus
- Institute of Geology and Palaeontology-Applied Geology, University of Münster , 48149 Münster, Germany
| | - Christine Achten
- Institute of Geology and Palaeontology-Applied Geology, University of Münster , 48149 Münster, Germany
| | | | | | | | - Henner Hollert
- College of Resources and Environmental Science, Chongqing University , 400030 Chongqing, China
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University , 210023 Nanjing, China
- College of Environmental Science and Engineering and State Key Laboratory of Pollution Control and Resource Reuse, Tongji University , 200092 Shanghai, China
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28
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Wang T, Pan J, Liu X. Characterization of heavy metal contamination in the soil and sediment of the Three Gorges Reservoir, China. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2017; 52:201-209. [PMID: 27835063 DOI: 10.1080/10934529.2016.1246931] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This paper analyzes the concentration, distribution, bioavailability, and potential heavy metal contamination risk of Cu, Pb, Cd, Zn, and Cr in the soil and sediment of the Three Gorges Reservoir (TGR). In this paper, 14 stations that cover the upper reaches to the lower reaches of the TGR were selected. The spatial distribution of heavy metals in the TGR showed that the average concentrations of Cu, Pb, Cd, Zn, and Cr were higher in the upper and lower reaches than those in the middle reaches because of industrial and agricultural activities as well as natural processes (e.g., soil erosion, rock weathering). The results also indicated that multiple pollution sources and complex geomorphological, geochemical and biological processes resulted in remarkably higher heavy metal concentrations in the soils of the water-level-fluctuation zone (WLFZ) than in the soils of the banks. The Cu, Pb, Cd, Zn, and Cr concentrations in the soils of the TGR did not exceed their respective maximum allowable concentration (MAC) values for agricultural soils in China, indicating that the soil in the TGR was not seriously contaminated with Cu, Pb, Cd, Zn, or Cr. However, the mean concentrations of all the studied metals in the sediments were higher than the geochemical background values and much higher than those in the soils, thus indicating the effect of the pollution sources and the altered hydrologic conditions that occurred after the impoundment of the TGR. A geoaccumulation index analysis indicated that the TGR sediments were moderately polluted with Cu and Cd, unpolluted to moderately polluted with Pb and Cr, and unpolluted with Zn. Fractionation studies indicated that Cd was mainly present in the non-residual fractions and exhibited great instability and bioavailability; furthermore, the alternating wetting and drying of the WFLZ soils enhance the mobility and bioavailability of Cd. Thus, greater attention should be paid to Cd pollution in the TGR because of its higher risk assessment values and potentially adverse biological effects.
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Affiliation(s)
- Tujin Wang
- a School of River and Ocean Engineering, Chongqing Jiaotong University , Chongqing , People's Republic of China
| | - Jin Pan
- a School of River and Ocean Engineering, Chongqing Jiaotong University , Chongqing , People's Republic of China
| | - Xuelian Liu
- a School of River and Ocean Engineering, Chongqing Jiaotong University , Chongqing , People's Republic of China
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Tang YM, Junaid M, Niu A, Deng S, Pei DS. Diverse toxicological risks of PAHs in surface water with an impounding level of 175m in the Three Gorges Reservoir Area, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 580:1085-1096. [PMID: 27989471 DOI: 10.1016/j.scitotenv.2016.12.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 12/08/2016] [Accepted: 12/09/2016] [Indexed: 06/06/2023]
Abstract
The impounding level of 175m for the Three Gorges Reservoir (TGR) is of vital importance for efficient flood control, power generation and convenient navigation in China. However, little is known about the spatial distribution and toxicological risks of major pollutants in the Three Gorges Reservoir Area (TGRA) at that stage. The aim of this study is to probe the ubiquitous polycyclic aromatic hydrocarbons (PAHs) contamination and toxicological impacts in the surface water of the TGRA at the highest water impoundment level of 175m. Our results showed that the ƩPAHs levels ranged from 83 to 1631ng/L in the upper reaches, 354 to 1159ng/L in the middle reaches, and 23 to 747ng/L in the lower reaches of the TGRA. Source apportionment of PAHs indicated that coal combustion, industrial emissions, heavy traffic, agriculture and shipping activities were the primary sources. Compositional pattern highlighted >85% dominancy of low molecular weight (LMW) PAHs in the reservoir. Risk assessment based on risk quotients (RQs) implied moderate to high ecological risks: the upper reaches>the middle reaches>the lower reaches. However, gene expression profiles portrayed contrary scenario because of the presence of relatively higher footprints of high molecular weight (HMW) PAHs in the middle and the lower reaches, which was confirmed by Cox hazard proportional model. Moreover, the transgenic zebrafish Tg(cyp1a:gfp) induced by PAHs also expressed stronger fluorescent signals in the middle and lower reaches. Taken together, different approaches were employed to firstly reveal the real status of ecological toxicity of PAHs and explore the underlying mechanisms at the highest impounding level of 175m in the TGRA.
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Affiliation(s)
- Yu-Mei Tang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Muhammad Junaid
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Aping Niu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Shun Deng
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - De-Sheng Pei
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
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Ren J, Gao BB, Fan HM, Zhang ZH, Zhang Y, Wang JF. Assessment of pollutant mean concentrations in the Yangtze estuary based on MSN theory. MARINE POLLUTION BULLETIN 2016; 113:216-223. [PMID: 27665325 DOI: 10.1016/j.marpolbul.2016.09.021] [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: 03/11/2016] [Revised: 09/07/2016] [Accepted: 09/11/2016] [Indexed: 06/06/2023]
Abstract
Reliable assessment of water quality is a critical issue for estuaries. Nutrient concentrations show significant spatial distinctions between areas under the influence of fresh-sea water interaction and anthropogenic effects. For this situation, given the limitations of general mean estimation approaches, a new method for surfaces with non-homogeneity (MSN) was applied to obtain optimized linear unbiased estimations of the mean nutrient concentrations in the study area in the Yangtze estuary from 2011 to 2013. Other mean estimation methods, including block Kriging (BK), simple random sampling (SS) and stratified sampling (ST) inference, were applied simultaneously for comparison. Their performance was evaluated by estimation error. The results show that MSN had the highest accuracy, while SS had the highest estimation error. ST and BK were intermediate in terms of their performance. Thus, MSN is an appropriate method that can be adopted to reduce the uncertainty of mean pollutant estimation in estuaries.
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Affiliation(s)
- Jing Ren
- Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China; State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| | - Bing-Bo Gao
- Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China; State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| | - Hai-Mei Fan
- East China Sea Marine Environmental Monitoring Center, Shanghai, China.
| | - Zhi-Hong Zhang
- Center for Environmental Risk and Damage Assessment, Chinese Academy for Environmental Planning, Beijing, China
| | - Yao Zhang
- National Marine Hazard Mitigation Service, State Oceanic Administration, Beijing, China
| | - Jin-Feng Wang
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China.
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Schmidt KR, der Beek TA, Dai X, Dong B, Dopp E, Eichinger F, Hammers-Wirtz M, Haußmann R, Holbach A, Hollert H, Illgen M, Jiang X, Koehler J, Koester S, Korth A, Kueppers S, Li A, Lohmann M, Moldaenke C, Norra S, Qin B, Qin Y, Reese M, Riehle E, Santiago-Schuebel B, Schaefer C, Simon A, Song Y, Staaks C, Steinhardt J, Subklew G, Tao T, Wu T, Yin D, Zhao F, Zheng B, Zhou M, Zou H, Zuo J, Tiehm A. Since 2015 the SinoGerman research project SIGN supports water quality improvement in the Taihu region, China. ENVIRONMENTAL SCIENCES EUROPE 2016; 28:24. [PMID: 27840787 PMCID: PMC5082586 DOI: 10.1186/s12302-016-0092-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 10/15/2016] [Indexed: 06/06/2023]
Abstract
The Taihu (Tai lake) region is one of the most economically prospering areas of China. Due to its location within this district of high anthropogenic activities, Taihu represents a drastic example of water pollution with nutrients (nitrogen, phosphate), organic contaminants and heavy metals. High nutrient levels combined with very shallow water create large eutrophication problems, threatening the drinking water supply of the surrounding cities. Within the international research project SIGN (SinoGerman Water Supply Network, www.water-sign.de), funded by the German Federal Ministry of Education and Research (BMBF), a powerful consortium of fifteen German partners is working on the overall aim of assuring good water quality from the source to the tap by taking the whole water cycle into account: The diverse research topics range from future proof strategies for urban catchment, innovative monitoring and early warning approaches for lake and drinking water, control and use of biological degradation processes, efficient water treatment technologies, adapted water distribution up to promoting sector policy by good governance. The implementation in China is warranted, since the leading Chinese research institutes as well as the most important local stakeholders, e.g. water suppliers, are involved.
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Affiliation(s)
| | | | | | | | | | | | - Monika Hammers-Wirtz
- GAIAC Research Institute for Ecosystem Analysis and Assessment at RWTH Aachen University, Aachen, Germany
| | | | | | - Henner Hollert
- GAIAC Research Institute for Ecosystem Analysis and Assessment at RWTH Aachen University, Aachen, Germany
- RWTH Aachen University, Aachen, Germany
| | - Marc Illgen
- DAHLEM Consultant Engineers, Darmstadt, Germany
| | - Xia Jiang
- CRAES: Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Jan Koehler
- IGB Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | | | | | | | - Aili Li
- IWW Water Centre, Mulheim, Germany
| | | | | | - Stefan Norra
- KIT Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Boqiang Qin
- NIGLAS: Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing, China
| | - Yanwen Qin
- CRAES: Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Moritz Reese
- UFZ Helmholtz-Zentrum für Umweltforschung GmbH, Leipzig, Germany
| | | | | | | | | | - Yonghui Song
- CRAES: Chinese Research Academy of Environmental Sciences, Beijing, China
| | | | | | | | - Tao Tao
- Tongji University, Shanghai, China
| | - Tingfeng Wu
- NIGLAS: Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing, China
| | | | | | - Binghui Zheng
- CRAES: Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Meiyue Zhou
- Leibniz University Hannover, Hannover, Germany
| | - Hua Zou
- Jiangnan University, Wuxi, China
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Xiao H, Krauss M, Floehr T, Yan Y, Bahlmann A, Eichbaum K, Brinkmann M, Zhang X, Yuan X, Brack W, Hollert H. Effect-Directed Analysis of Aryl Hydrocarbon Receptor Agonists in Sediments from the Three Gorges Reservoir, China. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:11319-11328. [PMID: 27640527 DOI: 10.1021/acs.est.6b03231] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The construction of the Three Gorges Dam (TGD) in the Yangtze River raises great concern in ecotoxicological research since large amounts of pollutants enter the Three Gorges Reservoir (TGR) water bodies after TGD impoundment. In this work, effect-directed analysis (EDA), combining effect assessment, fractionation procedure, and target and nontarget analyses, was used to characterize aryl hydrocarbon receptor (AhR) agonists in sediments of the TGR. Priority polycyclic aromatic hydrocarbons (PAHs) containing four to five aromatic rings were found to contribute significantly to the overall observed effects in the area of Chongqing. The relatively high potency fractions in the Kaixian area were characterized by PAHs and methylated derivatives thereof and heterocyclic polycyclic aromatic compounds (PACs) such as dinaphthofurans. Benzothiazole and derivatives were identified as possible AhR agonists in the Kaixian area based on nontarget liquid chromatography-high resolution mass spectrometry (LC-HRMS). To our knowledge, this study is the first one applying the EDA approach and identifying potential AhR agonists in TGR.
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Affiliation(s)
- Hongxia Xiao
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University , Aachen 52074, Germany
| | - Martin Krauss
- Department of Effect-Directed Analysis, Helmholtz Centre for Environmental Research-UFZ , Leipzig 04318, Germany
| | - Tilman Floehr
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University , Aachen 52074, Germany
| | - Yan Yan
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University , Aachen 52074, Germany
| | - Arnold Bahlmann
- Department of Effect-Directed Analysis, Helmholtz Centre for Environmental Research-UFZ , Leipzig 04318, Germany
| | - Kathrin Eichbaum
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University , Aachen 52074, Germany
| | - Markus Brinkmann
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University , Aachen 52074, Germany
- School of Environment and Sustainability, University of Saskatchewan , Saskatoon S7N 5B3, Canada
| | - Xiaowei Zhang
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University , Nanjing 210046, China
| | - Xingzhong Yuan
- College of Resources and Environmental Science, Chongqing University , Chongqing 400030, China
| | - Werner Brack
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University , Aachen 52074, Germany
- Department of Effect-Directed Analysis, Helmholtz Centre for Environmental Research-UFZ , Leipzig 04318, Germany
| | - Henner Hollert
- Department of Ecosystem Analysis, Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University , Aachen 52074, Germany
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University , Nanjing 210046, China
- College of Resources and Environmental Science, Chongqing University , Chongqing 400030, China
- Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University , Shanghai 200092, China
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Giesy JP, Tang Z, Zhao X. Historical record of effects of human activities on absolute and relative concentrations of Polycyclic aromatic hydrocarbons (PAHs) in Lake Chao, China. J Environ Sci (China) 2016; 46:1-4. [PMID: 27521930 DOI: 10.1016/j.jes.2016.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- John P Giesy
- Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
| | - Zhi Tang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xiaoli Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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Floehr T, Scholz-Starke B, Xiao H, Hercht H, Wu L, Hou J, Schmidt-Posthaus H, Segner H, Kammann U, Yuan X, Roß-Nickoll M, Schäffer A, Hollert H. Linking Ah receptor mediated effects of sediments and impacts on fish to key pollutants in the Yangtze Three Gorges Reservoir, China - A comprehensive perspective. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 538:191-211. [PMID: 26298852 DOI: 10.1016/j.scitotenv.2015.07.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/08/2015] [Accepted: 07/08/2015] [Indexed: 06/04/2023]
Abstract
The Three Gorges Reservoir (TGR), created in consequence of the Yangtze River's impoundment by the Three Gorges Dam, faces numerous anthropogenic impacts that challenge its unique ecosystem. Organic pollutants, particularly aryl hydrocarbon receptor (AhR) agonists, have been widely detected in the Yangtze River, but only little research was yet done on AhR-mediated activities. Hence, in order to assess effects of organic pollution, with particular focus on AhR-mediated activities, several sites in the TGR area were examined applying the "triad approach". It combines chemical analysis, in vitro, in vivo and in situ investigations to a holistic assessment. Sediments and the benthic fish species Pelteobagrus vachellii were sampled in 2011/2012, respectively, to identify relevant endpoints. Sediment was tested in vitro with the ethoxyresorufin-O-deethylase (EROD) induction assay, and in vivo with the Fish Embryo Toxicity Test and Sediment Contact Assay with Danio rerio. Activities of phase I (EROD) and phase II (glutathione-S-transferase) biotransformation enzymes, pollutant metabolites and histopathological alterations were studied in situ in P. vachellii. EROD induction was tested in vitro and in situ to evaluate possible relationships. Two sites, near Chongqing and Kaixian city, were identified as regional hot-spots and further investigated in 2013. The sediments induced in the in vitro/in vivo bioassays AhR-mediated activities and embryotoxic/teratogenic effects - particularly on the cardiovascular system. These endpoints could be significantly correlated to each other and respective chemical data. However, particle-bound pollutants showed only low bioavailability. The in situ investigations suggested a rather poor condition of P. vachellii, with histopathological alterations in liver and excretory kidney. Fish from Chongqing city exhibited significant hepatic EROD induction and obvious parasitic infestations. The polycyclic aromatic hydrocarbon (PAH) metabolite 1-hydroxypyrene was detected in bile of fish from all sites. All endpoints in combination with the chemical data suggest a pivotal role of PAHs in the observed ecotoxicological impacts.
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Affiliation(s)
- Tilman Floehr
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany.
| | - Björn Scholz-Starke
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany.
| | - Hongxia Xiao
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany.
| | - Hendrik Hercht
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany.
| | - Lingling Wu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China.
| | - Junli Hou
- East China Sea Fisheries Research Institute, Shanghai 200090, PR China.
| | | | - Helmut Segner
- Centre for Fish and Wildlife Health, University of Bern, 3001 Bern, Switzerland.
| | - Ulrike Kammann
- Thünen Institute of Fisheries Ecology, 22767 Hamburg, Germany.
| | - Xingzhong Yuan
- College of Resources and Environmental Science, Chongqing University, Chongqing 400030, PR China.
| | - Martina Roß-Nickoll
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany; College of Resources and Environmental Science, Chongqing University, Chongqing 400030, PR China.
| | - Andreas Schäffer
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany; College of Resources and Environmental Science, Chongqing University, Chongqing 400030, PR China; State Key Laboratory of Pollution Control and Research Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China.
| | - Henner Hollert
- Institute for Environmental Research, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 52074 Aachen, Germany; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China; College of Resources and Environmental Science, Chongqing University, Chongqing 400030, PR China; State Key Laboratory of Pollution Control and Research Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China.
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Lam PKS. Environmental threats to the Three Gorges Reservoir Region: Are mutagenic and genotoxic substances important? J Environ Sci (China) 2015; 38:172-174. [PMID: 26702982 DOI: 10.1016/j.jes.2015.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Paul K S Lam
- State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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