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Liu P, Guo Z, Wang Y, He M, Kang Y, Wu H, Hu Z, Zhang J. Occurrence of polycyclic aromatic hydrocarbons in the Yellow River delta: Sources, ecological risks, and microbial response. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 370:122432. [PMID: 39243646 DOI: 10.1016/j.jenvman.2024.122432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/22/2024] [Accepted: 09/04/2024] [Indexed: 09/09/2024]
Abstract
This research investigated the distribution, sources, and ecological risks of polycyclic aromatic hydrocarbons (PAHs) in the Yellow River Delta (YRD), China, emphasizing the response of soil microorganisms. The study involved quantitative analyses of 16 PAHs specified by the U.S. Environmental Protection Agency (USEPA) in both water and soil, utilizing metagenomic technique to determine the response of microbial communities and metabolism within the soil. Results noted that PAHs in the water mainly originate from pyrogenic source and in the soil originate from mixture source, with higher concentrations found in wetland areas compared to river regions. The ecological risk assessment revealed low-to-moderate risk. Microbial analysis demonstrated increased diversity and abundance of bacteria associated with PAHs in areas with higher PAHs pollution. Metagenomic insights revealed significant effects of organic carbon on PAHs degradation genes (ko00624 and ko00626), as well as significant differences in specific metabolic pathways including phenanthrene degradation, with key enzymes showing significant differences between the two environments. The study underscores the importance of understanding PAHs distribution and microbial responses to effectively manage and mitigate pollution in estuarine environments.
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Affiliation(s)
- Peiqiong Liu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Zizhang Guo
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China.
| | - Yu Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Mingyu He
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Yan Kang
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Haiming Wu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Zhen Hu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Jian Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China; College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
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Yan J, Liu J, You X, Shi X, Zhang L. Simulating the gross primary production and ecosystem respiration of estuarine ecosystem in North China with AQUATOX. Ecol Modell 2018. [DOI: 10.1016/j.ecolmodel.2018.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yan J, Liu J, Shi X, You X, Cao Z. Polycyclic aromatic hydrocarbons (PAHs) in water from three estuaries of China: Distribution, seasonal variations and ecological risk assessment. MARINE POLLUTION BULLETIN 2016; 109:471-479. [PMID: 27209122 DOI: 10.1016/j.marpolbul.2016.05.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 04/25/2016] [Accepted: 05/07/2016] [Indexed: 06/05/2023]
Abstract
The distribution, seasonal variations and ecological risk assessment of polycyclic aromatic hydrocarbons (PAHs) in water from three estuaries in Hai River Basin of China, which has been suffering from different anthropogenic pressures, were investigated. In three estuaries, the average concentration of ΣPAHs was the lowest in Luan River estuary, followed by Hai River estuary, and the highest in Zhangweixin River estuary. There were significant seasonal variations in ΣPAHs, the concentrations of ΣPAHs were higher in November than in May and August. The composition profiles of PAHs in different sites were significantly different, and illustrated seasonal variations. Generally, 2-ring (Nap) and 3-ring PAHs (Acp, Fl and Phe) were the most abundant components at most sampling sites in three estuaries. The PAHs in three estuaries were mainly originated from pyrogenic sources. A method based on toxic equivalency factors (TEFs) and risk quotient (RQ) was proposed to assess the ecological risk of ΣPAHs, with the ecological risk of individual PAHs being considered separately. The results showed that the ecological risks caused by ΣPAHs were high in Hai River estuary and Zhangweixin River estuary, and moderate in Luan River estuary. The mean values of ecological risk in August were lower than those in November. The contributions of individual PAHs to ecological risk were different in May, August and November. 3-ring and 4-ring PAHs accounted for much more ecological risk than 2-ring, 5-ring and 6-ring, although the contributions of 5-ring and 6-ring to ecological risk were higher than these to PAHs concentrations.
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Affiliation(s)
- Jinxia Yan
- State Key Joint Laboratory of Environmental Simulation and Pollution Control and School of Environment, Beijing Normal University, 100875 Beijing, China; School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, 450011 Zhengzhou, China
| | - Jingling Liu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control and School of Environment, Beijing Normal University, 100875 Beijing, China.
| | - Xuan Shi
- State Key Joint Laboratory of Environmental Simulation and Pollution Control and School of Environment, Beijing Normal University, 100875 Beijing, China
| | - Xiaoguang You
- State Key Joint Laboratory of Environmental Simulation and Pollution Control and School of Environment, Beijing Normal University, 100875 Beijing, China
| | - Zhiguo Cao
- State Key Joint Laboratory of Environmental Simulation and Pollution Control and School of Environment, Beijing Normal University, 100875 Beijing, China
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