Distribution and fate of PAHs contaminants deposited in the sediments of North-Western Creeks adjoining the Arabian sea of Mumbai, India: Implications for monitoring

IF 1.5 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Environmental Forensics Pub Date : 2021-09-14 DOI:10.1080/15275922.2021.1976319

P. Singare, J. Shirodkar

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引用次数: 1

Abstract

Abstract Assessment of 17 polyaromatic hydrocarbons (PAHs) was made to understand the sources, toxicity risk and biological impact in surface sediments of Malad and Versova creek of Mumbai. The concentration of ΣPAHs was found to vary in the range of 2915–4204 ng/g dw (mean 3367 ± 948 ng/gdw). The concentration of high molecular weight PAHs (HMW PAHs) in the range of 2378–3394 ng/g dw (mean 2723 ± 755 ng/g dw) was higher than that of low molecular PAHs (LMW PAHs) which was in the range of 528–810 ng/g dw (mean 644 ± 202 ng/g dw). The contribution of HMW PAHs to the ∑PAHs was 80.86% while that of LMW PAHs was 19.14%. The concentration of carcinogenic PAHs was 1452–1996 ng/g dw (mean 1631 ± 447 ng/g dw) having contribution of 48.43% to the ∑PAHs. The assessment of biological risk and toxicity was made based on toxic equivalent quantity (TEQ) and sediment quality guideline quotient (SQGQ). The PAH levels are feared to increase in coming times thereby creating probable threat to the biological life and health hazard to the nearby human population.

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印度孟买阿拉伯海附近西北小溪沉积物中沉积的多环芳烃污染物的分布和命运:监测意义

摘要对孟买Malad河和Versova河表层沉积物中17种多芳烃(PAHs)的来源、毒性风险和生物影响进行了评价。ΣPAHs浓度变化范围为2915 ~ 4204 ng/gdw(平均值为3367±948 ng/gdw)。高分子量多环芳烃(HMW PAHs)浓度为2378 ~ 3394 ng/g dw(平均2723±755 ng/g dw)，高于低分子量多环芳烃(LMW PAHs)浓度为528 ~ 810 ng/g dw(平均644±202 ng/g dw)。高分子量PAHs对∑PAHs的贡献率为80.86%，低分子量PAHs的贡献率为19.14%。致癌性PAHs浓度为1452 ~ 1996 ng/g dw(平均1631±447 ng/g dw)，对∑PAHs的贡献率为48.43%。根据毒性当量(TEQ)和沉积物质量指导商(SQGQ)进行生物风险和毒性评价。人们担心多环芳烃水平在未来会增加，从而可能对生物生命造成威胁，并对附近人口的健康造成危害。

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来源期刊

Environmental Forensics 环境科学-环境科学

CiteScore

4.90

自引率

5.60%

发文量

审稿时长

3 months

期刊介绍： Environmental Forensics provides a forum for scientific investigations that address environment contamination, its sources, and the historical reconstruction of its release into the environment. The context for investigations that form the published papers in the journal are often subjects to regulatory or legal proceedings, public scrutiny, and debate. In all contexts, rigorous scientific underpinnings guide the subject investigations. Specifically, the journal is an international, quarterly, peer-reviewed publication offering scientific studies that explore or are relevant to the source, age, fate, transport, as well as human health and ecological effects of environmental contamination. Journal subject matter encompasses all aspects of contamination mentioned above within the environmental media of air, water, soil, sediments and biota. Data evaluation and analysis approaches are highlighted as well including multivariate statistical methods. Journal focus is on scientific and technical information, data, and critical analysis in the following areas: -Contaminant Fingerprinting for source identification and/or age-dating, including (but not limited to) chemical, isotopic, chiral, mineralogical/microscopy techniques, DNA and tree-ring fingerprinting -Specific Evaluative Techniques for source identification and/or age-dating including (but not limited to) historical document and aerial photography review, signature chemicals, atmospheric tracers and markets forensics, background concentration evaluations. -Statistical Evaluation, Contaminant Modeling and Data Visualization -Vapor Intrusion including delineating the source and background values of indoor air contamination -Integrated Case Studies, employing environmental fate techniques -Legal Considerations, including strategic considerations for environmental fate in litigation and arbitration, and regulatory statutes and actions