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Du M, Hu T, Liu W, Shi M, Li P, Mao Y, Liu L, Xing X, Qi S. Chronological evaluation of polycyclic aromatic hydrocarbons in sediments of tangxun lake in central China and impacts of human activities. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34816-3. [PMID: 39215914 DOI: 10.1007/s11356-024-34816-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 08/22/2024] [Indexed: 09/04/2024]
Abstract
This study sheds light on the contamination of polycyclic aromatic hydrocarbons (PAHs) in Tangxun Lake sediments, an urban lake reflecting environmental changes in Central China. By analyzing sediment cores from both the inner and outer areas of the lake, we determined the historical trends and sources of PAHs over the past century. The results reveal a significant increase in PAHs concentrations, particularly since the 1980s, coinciding with China's rapid urbanization and industrialization. Using diagnostic ratios and Absolute principal component score-multivariate linear regression (APCS-MLR) methods, we identified petroleum combustion, coal combustion, and biomass combustion as the primary sources of PAHs in the lake sediments. The spatial analysis indicates higher PAHs levels in the inner lake, likely due to its closer proximity to industrial activities. Moreover, by comparing PAH trends in Tangxun Lake with those in other urban, suburban, and remote lakes across China, based on data from 49 sedimentary cores, we highlight the impact of regional socio-economic dynamics on PAH deposition. These insights are crucial for developing effective pollution mitigation strategies and promoting sustainable development in rapidly urbanizing regions.
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Affiliation(s)
- Minkai Du
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Tianpeng Hu
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Weijie Liu
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Mingming Shi
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Peng Li
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- Hubei Geological Survey, Wuhan, 430034, Hubei, China
| | - Yao Mao
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, No. 68 Jincheng Street, Wuhan East Lake High-Tech Development Zone, Hubei Province, China
| | - Li Liu
- Hubei Geological Survey, Wuhan, 430034, Hubei, China
| | - Xinli Xing
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China.
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, No. 68 Jincheng Street, Wuhan East Lake High-Tech Development Zone, Hubei Province, China.
| | - Shihua Qi
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, No. 68 Jincheng Street, Wuhan East Lake High-Tech Development Zone, Hubei Province, China
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Chen CF, Chen CW, Albarico FPJB, Lee SH, Hsu CW, Dong CD. Sediment organic matter predicts polycyclic aromatic hydrocarbon distribution in port sediments. MARINE POLLUTION BULLETIN 2024; 207:116869. [PMID: 39168089 DOI: 10.1016/j.marpolbul.2024.116869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/15/2024] [Accepted: 08/15/2024] [Indexed: 08/23/2024]
Abstract
We evaluated the influence of organic matter in polycyclic aromatic hydrocarbons (PAHs) in port sediments using multiple linear regression (MLR) and prediction models. Total sediment PAHs ranged between 45 and 3230 ng/g dw (average: 557 ± 962 ng/g dw), with PAHs primarily originating from river inputs, confined to areas near the estuaries. Coal/biomaterial combustion and petroleum mainly contribute to the presence of PAHs along estuaries, with medium-high to high ecological risks. MLR TPAHs prediction model included variables, namely, the marine-derived total organic carbon (TOCmar), terrestrial fraction of organic matter (Fterr), and carbon-to‑nitrogen ratio (CNR). Results indicate that mainly marine- followed by terrestrially-derived organic matter influenced sediment PAH distribution. Total organic nitrogen and CNR were variables in the toxic equivalent (TEQ) prediction model, demonstrating that terrestrial pollution sources primarily influenced TEQ. The study analyzes and predicts the impact of organic matter and its sources on the fate and transport of PAHs in port sediments.
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Affiliation(s)
- Chih-Feng Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Center for the Study of Sediments, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan.
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Center for the Study of Sediments, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Frank Paolo Jay B Albarico
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Shu-Hui Lee
- General Study Center, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Chieh-Wei Hsu
- Cross College Elite Tech Program, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Center for the Study of Sediments, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan.
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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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Guo R, Wu J, Zhang H, Li Q. History of organic pollution in montane lake Issyk-Kul, Kyrgyzstan, Central Asia, inferred from a sediment core. ENVIRONMENTAL RESEARCH 2024; 250:118505. [PMID: 38387497 DOI: 10.1016/j.envres.2024.118505] [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: 12/08/2023] [Revised: 01/18/2024] [Accepted: 02/14/2024] [Indexed: 02/24/2024]
Abstract
In arid regions, montane lakes are valuable water sources and play important ecological roles. However, recent human-induced inputs of organic pollutants are threatening lake ecology in such regions and becoming a matter of great concern. To investigate pollutant histories and sources, we measured polycyclic aromatic hydrocarbons (PAHs) and n-alkanes in a dated sediment core that spans the last ∼350 years, from montane Lake Issyk-Kul (Kyrgyzstan, Central Asia). Results showed that organic pollutants were delivered to Lake Issyk-Kul in four stages and that their concentrations increased from Stage I (∼1670-1800 CE) to Stage IV (∼2000-2010 CE). Furthermore, we tracked the sources of sedimented PAHs using their ratios combined with n-alkanes data. Ratios of PAHs Ant/(Ant + Phe), Flt/(Flt + Pyr) and Bap/BghiP indicated that inputs during Stage II (∼1800-1970 CE) and Stage III (∼1970-2000 CE) came mainly from high-temperature combustion of coal and vehicle emissions. PAHs in Stage I and Stage IV, however, were mainly derived from low-temperature combustion and petrogenic sources. Diagnostic PAH ratios, combined with the natural n-alkane ratio (NAR<0) and unresolved complex mixtures (UCM), showed that the sources of PAHs in Stage I were mainly from erosion of bedrock and partly influenced by forest wildfires, different from the source during Stage IV, which was mainly from refined petroleum caused by accidental spills. Our assessment of the contamination history of the lake indicates that toxicity risk to the waterbody from sediment PAHs is low, but recent discharges arising from traffic deserve attention.
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Affiliation(s)
- Ru Guo
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jinglu Wu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - HongLiang Zhang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qianyu Li
- Key Laboratory of Earth Surface Processes and Regional Response in the Yangtze-Huaihe River Basin, Anhui Province, School of Geography and Tourism, Anhui Normal University, Wuhu, 241002, China
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Li Q, Bu Q, Liu Q, Wang X, Zhao R, Huang H, Wang D, Yang L, Tang J. Depth-dependent variations of physicochemical properties of sedimentary dissolved organic matter and the influence on the elimination of typical pharmaceuticals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170432. [PMID: 38281635 DOI: 10.1016/j.scitotenv.2024.170432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/20/2024] [Accepted: 01/23/2024] [Indexed: 01/30/2024]
Abstract
Sedimentary dissolved organic matter (DOM) could exert a significant influence on the transformation of trace organic contaminants. However, the variations of sedimentary DOM properties with depth and their impact on trace organic contaminants biodegradation remain unclear. In this study, the qualitative changes in DOM properties with depth were assessed using spectral techniques. Specifically, within the sediment range of 0-30 cm, humic acid and fulvic acid fractions exhibited higher degrees of humification and aromatization at 10-20 cm, while hydrophilic fractions showed higher degrees of humification and aromatization at 20-30 cm. Furthermore, electrochemical methods were employed to quantitatively assess the electron transfer capacity of sedimentary DOM at different depths, which displayed consistent variation trend with humification and aromatization degree. The high degree of humification and aromatization, along with strong electron-accepting capability of DOM, significantly enhanced the biodegradation rates of tetracycline and ritonavir. To gain deeper insights into the influence of molecular composition of DOM on its properties, two-dimensional gas chromatography-quadrupole mass spectrometry analysis revealed that quinones and phenolic hydroxyl compounds govern the redox reactivity of DOM. Simulated experiment of DOM-mediated biodegradation of typical pharmaceuticals confirmed the role of quinones and phenolic hydroxyl groups in the redox reactivity of DOM.
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Affiliation(s)
- Qingshan Li
- School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, PR China
| | - Qingwei Bu
- School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, PR China.
| | - Quanzhen Liu
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Xin Wang
- School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, PR China
| | - Ruiqing Zhao
- School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, PR China
| | - Haitao Huang
- School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, PR China
| | - Donghong Wang
- National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Lei Yang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Jianfeng Tang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
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6
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Qian Y, Liang M, Zhao Z, Zhang Z, Cai M, Lin Y. Does mangrove leave falling dominate the bury of polycyclic aromatic hydrocarbons in the mangrove of China? MARINE ENVIRONMENTAL RESEARCH 2024; 194:106318. [PMID: 38218006 DOI: 10.1016/j.marenvres.2023.106318] [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: 09/11/2023] [Revised: 11/21/2023] [Accepted: 12/20/2023] [Indexed: 01/15/2024]
Abstract
Mangrove wetlands are vital coastal ecosystems that can absorb and accumulate pollutants. Polycyclic aromatic hydrocarbons (PAHs) are persistent organic pollutants that pose potential risks to ecosystems and human health. However, their source and transport fate in mangrove areas are poorly understood. This study investigates 29 PAHs pollution of water and sediment in Zhangjiangkou Mangrove Wetland, the northernmost large-scale mangrove wetland reserve in China. We examine the distribution, source, transport mechanisms and risk assessment of PAHs. The results show that the concentrations of PAHs in mangrove sediment range from 55.62 to 347.36 ng/g (DW), with 5-ring PAHs being the dominant species. While the concentrations of PAHs in surface water range from 10.61 to 46.39 ng/L, with 2-ring PAHs and alkylated PAHs being the dominant species. The PAHs concentrations in surface water and sediment of river are higher than those in mangrove area, indicating that mangrove water could receive PAHs through tidal exchange. Based on diagnostic ratios (DRs), principal component analysis (PCA), and positive matrix factorization (PMF), we infer that the leaf deposition (48.55%) could be an important pathway of PAHs in mangrove sediment except for river water transport (51.45%), while the PAHs in estuary water originate mainly from point sources such as biomass burning (50.96%) and traffic emission (49.04%). The range of toxic equivalents in surface water and sediment was 2.73-16.09 ng TEQ g-1 and 0.03-3.63 ng/L, respectively. Although the ecological risk assessment suggests that the PAHs pollution in surface water and sediment poses a low risk, we recommend more attention to the protection of the mangrove ecosystem. This study reveals that mangrove leaf falling might be a significant mechanism of PAH sequestration in the mangrove system, which deserves more attention in future research.
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Affiliation(s)
- Yingying Qian
- School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361021, China; Xiamen Key Laboratory of Membrane Research and Application, Xiamen 361024, China
| | - Meiru Liang
- School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361021, China; Xiamen Key Laboratory of Membrane Research and Application, Xiamen 361024, China
| | - Zixing Zhao
- School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361021, China; Xiamen Key Laboratory of Membrane Research and Application, Xiamen 361024, China
| | - Zihang Zhang
- School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361021, China; Xiamen Key Laboratory of Membrane Research and Application, Xiamen 361024, China
| | - Minggang Cai
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; Key Laboratory of Marine Chemistry and Application Technology, Xiamen University, Xiamen 361102, China; College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China
| | - Yan Lin
- School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361021, China; Xiamen Key Laboratory of Membrane Research and Application, Xiamen 361024, China.
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Xing X, Liu W, Li P, Su Y, Li X, Shi M, Hu T, Zhang Y, Liu L, Zhang J, Qi S. Insight into the effect mechanism of sedimentary record of polycyclic aromatic hydrocarbon: Isotopic evidence for lake organic matter deposition and regional development model. ENVIRONMENTAL RESEARCH 2023; 239:117380. [PMID: 37832771 DOI: 10.1016/j.envres.2023.117380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 09/26/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023]
Abstract
Deciphering the temporal patterns of polycyclic aromatic hydrocarbons (PAHs) in sediment cores, and the effect mechanism of sedimentary organic matter (OM) and regional development model on PAHs are crucial for pollution control and environmental management. Herein, sediment core was collected from Chenhu international wetland in Wuhan, central China. Meanwhile, historical trend and source of PAHs and sedimentary OM were presented, respectively. Result demonstrated that the most significant growth of PAHs (increased by 158.8%) was attributed to the significant enhancement of traffic emission (5.57 times), coal combustion (4.59 times), and biomass burning (8.09 times). Similarly, the percentage of phytoplankton (stage Ⅲ: 37.9%; stage Ⅳ: 31.2%) and terrestrial C3 plants (stage Ⅲ: 24.6%; stage Ⅳ: 29.2%) to sedimentary OM hold the dominant position after the stage Ⅱ. The obvious shifts of historical trend and sources in PAHs were highly related to economic development models (r = 0.72, p < 0.001) and sedimentary OM (r = 0.82, p < 0.001). It demonstrated that eutrophication of lake accelerated the burial of PAHs. Redundancy analysis results suggested that TOC was dominating driver of sedimentary PAHs (16.56%) and phytoplankton occupied 9.58%. To further confirm the significant role of economic development models, three different historical trends of PAHs in different regions of China were presented. The result of this study provides the new insight into the geochemistry mechanism of lake sedimentary OM and PAHs. Meanwhile, the relationship of regional development model and sedimentary PAHs was highlighted in this study. Significantly, the main environmental implications of this study are as follows: (1) lake eutrophication of phytoplankton OM accelerated the burial of PAHs in lake sediment; (2) economic development models and energy structure significantly influence the sedimentary PAHs. This study highlights the coupling relationship between OM burial and PAHs sedimentation, and the importance of accelerating the transformation of economic energy structure.
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Affiliation(s)
- Xinli Xing
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430078, China.
| | - Weijie Liu
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430078, China
| | - Peng Li
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Hubei Geological Bureau, Wuhan, 430034, China
| | - Yewang Su
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Xingyu Li
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Mingming Shi
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430078, China
| | - Tianpeng Hu
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430078, China; Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China
| | - Ya Zhang
- Hubei Geological Bureau, Wuhan, 430034, China
| | - Li Liu
- Hubei Geological Bureau, Wuhan, 430034, China
| | - Jiaquan Zhang
- Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, China
| | - Shihua Qi
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
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8
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Liu M, Tian H, Chen T, Sun J, Sun R, Kong Q, Zhao Z, Zhang S, Xu F. Spatiotemporal evolution of dissolved organic matter (DOM) and its response to environmental factors and human activities. PLoS One 2023; 18:e0292705. [PMID: 37819935 PMCID: PMC10566700 DOI: 10.1371/journal.pone.0292705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023] Open
Abstract
The South-to-North Water Diversion East Project (SNWDP-E) is an effective way to realize the optimal allocation of water resources in China. The North Dasha River (NDR) is the reverse recharge section that receives water from the Yufu River to the Wohushan Reservoir transfer project line in the SNWDP. However, the dissolved organic matter (DOM) evolution mechanism of seasonal water transfer projects on tributary waters has not been fully elucidated. In this paper, the NDR is the main object, and the changes in the composition and distribution of spectral characteristics during the winter water transfer period (WT) as well as during the summer non-water transfer period (NWT) are investigated by parallel factor analysis (PARAFAC). The results showed that the water connectivity caused by water transfer reduces the environmental heterogeneity of waters in the basin, as evidenced by the ammonia nitrogen (NH4+-N) and total phosphorus (TP) in the water body were significantly lower (p<0.05, p<0.01) during the water transfer period than the non-water transfer period. In addition, the fluorescence intensity of DOM was significantly lower in the WT than the NWT (p<0.05) and was mainly composed of humic substances generated from endogenous sources with high stability. While the NWT was disturbed by anthropogenic activities leading to significant differences in DOM composition in different functional areas. Based on the redundancy analysis (RDA) and multiple regression analysis, it was found that the evolution of the protein-like components is dominated by chemical oxygen demand (COD) and NH4+-N factors during the WT. While the NWT is mainly dominated by total nitrogen (TN) and TP factors for the evolution of the humic-like components. This study helps to elucidate the impact of water transfer projects on the trunk basin and contribute to the regulation and management of inter-basin water transfer projects.
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Affiliation(s)
- Mengyu Liu
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, PR China
| | - Haihan Tian
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, PR China
| | - Tao Chen
- The Natural Resources and Planning Bureau of Weishan, Jining, PR China
| | - Jingyao Sun
- The Natural Resources and Planning Bureau of Weishan, Jining, PR China
| | - Ruipeng Sun
- Shandong Provincial GEO-MINERAL Engineering Co., Ltd., Jinan, PR China
| | - Qiang Kong
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, PR China
- Dongying Institute, Shandong Normal University, Dongying, Shandong, PR China
| | - Zheng Zhao
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, PR China
| | - Siju Zhang
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, PR China
| | - Fei Xu
- College of Geography and Environment, Shandong Normal University, Jinan, Shandong, PR China
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9
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Fu L, Sun Y, Li H, Chen Y, Du H, Liang SX. Distribution, sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in sediments from Baiyang Lake, China. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1035. [PMID: 37572161 DOI: 10.1007/s10661-023-11607-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 07/14/2023] [Indexed: 08/14/2023]
Abstract
The issue of polycyclic aromatic hydrocarbons (PAHs) has been an environmental focus worldwide. In this study, the contents, sources, and ecological risks of sixteen PAHs in the sediment of Baiyang Lake were estimated, and a list of priority pollutants was established. The total PAH contents ranged from 114 to 1010 ng·g-1. The composition of PAHs indicated that 4- to 6-ring PAHs predominated in the sediment samples. The diagnostic ratio analysis showed that combustion sources were predominant for PAHs in Baiyang Lake. Specifically, the positive matrix factorization model indicated that diesel engine emissions, gasoline engine emissions, wood combustion sources, and coal combustion sources contributed 22, 32, 24, and 22% of ∑PAHs, respectively. Based on the sediment quality guidelines, mean effects range median quotient, ecological risk quotient, and toxicity equivalent quotient methods, the comprehensive assessment results of PAHs in Baiyang Lake sediments indicated that the ecological risks were at medium and low levels. The priority pollutant list showed that benzo[b]fluoranthene and benzo[a]pyrene were the highest-priority pollutants and thus should be given more attention.
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Affiliation(s)
- Liguo Fu
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, People's Republic of China
| | - Yaxue Sun
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, People's Republic of China
| | - Hongbo Li
- Baiyangdian Basin Eco-environmental Support Center, Shijiazhuang, 050056, China
| | - Yan Chen
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, People's Republic of China
| | - Hui Du
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, People's Republic of China
| | - Shu-Xuan Liang
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, People's Republic of China.
- Institute of Life Science and Green Development, Hebei University, Baoding, 071002, People's Republic of China.
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