Chlorinated organic pollutants in global flooded soil and sediments : Pollution status and potential risk
Copyright © 2023 Elsevier Ltd. All rights reserved..
Chlorinated organic pollutants (COPs) were widely detected in anaerobic environments while there is limited understanding of their pollution status and potential environmental risks. Here, we applied meta-analysis to identify the occurrence status, pollution sources, and environmental risk of COPs from 246 peer-published literature, including 25 kinds of COPs from 977 sites. The results showed that the median concentrations of COPs were at the ng g-1 level. By the combination of principal component analysis (PCA) and positive matrix factorization (PMF), we established 7 pollution sources for COPs. Environmental risk assessment found 73.3% of selected sites were at a security level but the rest were not, especially for the wetlands. The environmental risk of COPs was usually underestimated by the existing evaluation methods, such as without the consideration of the non-extractable residues (NER) and the multi-process coupling effect. Especially, the synergetic coupling associations between dechlorination and methanogenesis might increase the risk of methane emission that has barely been previously considered in previous risk assessment approaches. Our results expanded the knowledge for the pollution control and remediation of COPs in anaerobic environments.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:323 |
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| Enthalten in: |
Environmental pollution (Barking, Essex : 1987) - 323(2023) vom: 15. Apr., Seite 121270 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Meng [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 15.03.2023 Date Revised 15.03.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.envpol.2023.121270 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 500 | |a Date Revised 15.03.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2023 Elsevier Ltd. All rights reserved. | ||
| 520 | |a Chlorinated organic pollutants (COPs) were widely detected in anaerobic environments while there is limited understanding of their pollution status and potential environmental risks. Here, we applied meta-analysis to identify the occurrence status, pollution sources, and environmental risk of COPs from 246 peer-published literature, including 25 kinds of COPs from 977 sites. The results showed that the median concentrations of COPs were at the ng g-1 level. By the combination of principal component analysis (PCA) and positive matrix factorization (PMF), we established 7 pollution sources for COPs. Environmental risk assessment found 73.3% of selected sites were at a security level but the rest were not, especially for the wetlands. The environmental risk of COPs was usually underestimated by the existing evaluation methods, such as without the consideration of the non-extractable residues (NER) and the multi-process coupling effect. Especially, the synergetic coupling associations between dechlorination and methanogenesis might increase the risk of methane emission that has barely been previously considered in previous risk assessment approaches. Our results expanded the knowledge for the pollution control and remediation of COPs in anaerobic environments | ||
| 650 | 4 | |a Meta-Analysis | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Review | |
| 650 | 4 | |a Chlorinated organic pollutants (COPs) | |
| 650 | 4 | |a Flooded environment | |
| 650 | 4 | |a Multi process coupling | |
| 650 | 4 | |a Non-extractable residues (NER) | |
| 650 | 4 | |a Risk assessment | |
| 650 | 7 | |a Environmental Pollutants |2 NLM | |
| 650 | 7 | |a Soil |2 NLM | |
| 650 | 7 | |a Soil Pollutants |2 NLM | |
| 700 | 1 | |a Yuan, Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Shi, Jiachun |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Jianming |e verfasserin |4 aut | |
| 700 | 1 | |a He, Yan |e verfasserin |4 aut | |
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