دورية أكاديمية
Multimedia distribution, dynamics, and seasonal variation of PAHs in Songhua wetland: Implications for ice-influenced conditions.
| العنوان: | Multimedia distribution, dynamics, and seasonal variation of PAHs in Songhua wetland: Implications for ice-influenced conditions. |
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| المؤلفون: | Meng B; International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Heilongjiang Cold Region Wetland Ecology and Environment Research Key Laboratory, Harbin University, Harbin, 150086, China., Min XZ; International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China. Electronic address: minxize@163.com., Xiao MY; International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China., Xie WX; Qiqihar Environmental Monitoring Station, No. 571 Bukunan Street, Longsha District, Qiqihar City, Heilongjiang Province, China., Li WL; Wadsworth Center, New York State Department of Health, Albany, NY 12237, United States., Cai MG; Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China., Xiao H; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China., Zhang ZF; International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China. Electronic address: zifeng_zhang@aliyun.com. |
| المصدر: | Chemosphere [Chemosphere] 2024 Apr; Vol. 354, pp. 141641. Date of Electronic Publication: 2024 Mar 07. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Science Ltd Country of Publication: England NLM ID: 0320657 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1298 (Electronic) Linking ISSN: 00456535 NLM ISO Abbreviation: Chemosphere Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Oxford : Elsevier Science Ltd Original Publication: Oxford, New York, : Pergamon Press. |
| مواضيع طبية MeSH: | Polycyclic Aromatic Hydrocarbons*/analysis , Water Pollutants, Chemical*/analysis, Seasons ; Wetlands ; Ecosystem ; Multimedia ; Environmental Monitoring ; Water ; China ; Geologic Sediments |
| مستخلص: | The knowledge of polycyclic aromatic hydrocarbons (PAHs) in wetlands remains limited. There is a research need for the dynamics between interfaces of multimedia when ice is present in this fragile ecosystem. In this study, sediment, open-water, sub-ice water, and ice samples were collected from the Songhua wetland to study the behaviors of PAHs with and without influences from ice. The concentration of all individual PAHs in sub-ice water (370-1100 ng/L) were higher than the open-water collected from non-ice-covered seasons (50-250 ng/L). Enrichment of PAHs in the ice of wetland was found, particularly for high-molecular-weight PAHs (HMW). This could be attributed to the relatively lower polarity of hydrocarbons compounds, making them more likely to remain in the ice layer during freezing. Source assessments reveal common sources for sub-ice water and ice, which differ from those in the open water in non-ice-covered seasons. This difference is primarily attributed to heating activities in the Harbin during winter. The average percentage contributions were 79% for sub-ice water and 36% for ice related to vehicle exhausts and coal combustion. Additionally, wood burning contributed 25% to sub-ice water and 62% to ice. Sediment in the wetland was found to serve as a final deposit particularly for heavier PAHs, especially those with 6 rings. Sediment also has the potential to act as a source for the secondary emission of low-molecular-weight PAHs (LMW) congeners into the water. PAHs in wetland displayed low ecological risk, while HMW PAHs with relative higher ecological risk is recommended to be further monitored. Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2024 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Enrichment; Hydrocarbons; Sediment; Sink; Source identification |
| المشرفين على المادة: | 0 (Polycyclic Aromatic Hydrocarbons) 059QF0KO0R (Water) 0 (Water Pollutants, Chemical) |
| تواريخ الأحداث: | Date Created: 20240309 Date Completed: 20240408 Latest Revision: 20240418 |
| رمز التحديث: | 20240418 |
| DOI: | 10.1016/j.chemosphere.2024.141641 |
| PMID: | 38460850 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1298 |
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| DOI: | 10.1016/j.chemosphere.2024.141641 |