小清河河口及沿岸水体- spm系统中汞和砷的分布特征

IF 3 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Marine environmental research Pub Date : 2025-02-01 DOI:10.1016/j.marenvres.2024.106932

Feifei Zhang , Dong Zhang , Xiaoyue Li , Huawei Lou , Hongrui Fu , Xiaojun Sun , Peiyan Sun , Xinping Wang , Mutai Bao

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引用次数: 0

摘要

于2022年8月采集小青口及邻近海域水体和悬浮颗粒物（SPM），研究Hg和As的空间分布特征及风险评价。SPM样品中Hg含量在4.7152 ~ 446.8678 mg kg-1之间，As含量在90.1739 ~ 1147.5500 mg kg-1之间。Hg在0.0219 ~ 0.0986 μg L-1之间，As在1.4326 ~ 11.6750 μg L-1之间。小清河径流输入是汞和砷的主要来源。微粒汞和砷被严重污染，水的风险要小得多。这表明SPM积累了更多的危险污染物（汞和砷）。在水和SPM中，Hg的风险高于As(即CF(Hg) > CF(As), Igeo（Hg) > Igeo(As)）。分析表明，水体环境因子通过影响生物活性进一步影响汞或砷在水体和SPM中的分布。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Distribution characteristics of Hg and As in the water-SPM system in the Xiaoqing river estuary and coastal

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Distribution characteristics of Hg and As in the water-SPM system in the Xiaoqing river estuary and coastal

Water and suspended particulate matter (SPM) were collected from Xiaoqing Estuary and its adjacent waters in August 2022 to study the spatial distribution and risk assessment of Hg and As. The content of Hg in SPM samples ranged from 4.7152 to 446.8678 mg kg⁻¹, and the content of As ranged from 90.1739 to 1147.5500 mg kg⁻¹. The content of Hg in water ranges from 0.0219 to 0.0986 μg L⁻¹, and the content of As ranges from 1.4326 to 11.6750 μg L⁻¹. Xiaoqing River runoff input is the main source of Hg and As. Particulate Hg and As was extremely polluted, water was much less of a risk. It indicated that SPM accumulates more dangerous pollutants (Hg and As). In both water and SPM, it turned out that Hg has a higher risk than As (i.e., CF(Hg) > CF(As), I_geo(Hg) > I_geo(As)). The analysis showed that the environmental factors of water further affected the distribution of Hg or As in water and SPM by influencing biological activity.

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来源期刊

Marine environmental research 环境科学-毒理学

CiteScore

5.90

自引率

3.00%

发文量

217

审稿时长

46 days

期刊介绍： Marine Environmental Research publishes original research papers on chemical, physical, and biological interactions in the oceans and coastal waters. The journal serves as a forum for new information on biology, chemistry, and toxicology and syntheses that advance understanding of marine environmental processes. Submission of multidisciplinary studies is encouraged. Studies that utilize experimental approaches to clarify the roles of anthropogenic and natural causes of changes in marine ecosystems are especially welcome, as are those studies that represent new developments of a theoretical or conceptual aspect of marine science. All papers published in this journal are reviewed by qualified peers prior to acceptance and publication. Examples of topics considered to be appropriate for the journal include, but are not limited to, the following: – The extent, persistence, and consequences of change and the recovery from such change in natural marine systems – The biochemical, physiological, and ecological consequences of contaminants to marine organisms and ecosystems – The biogeochemistry of naturally occurring and anthropogenic substances – Models that describe and predict the above processes – Monitoring studies, to the extent that their results provide new information on functional processes – Methodological papers describing improved quantitative techniques for the marine sciences.