道路沉积土壤中的多芳烃和微量金属、来源分配和风险分析:来自孟加拉国最大港口城市的证据。

IF 3.8 3区 环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL
Md Samrat Mohay Menul Islam, Md Nure Alam Siddik, Md Ashraful Islam, Sharmin Ahmed Trisha, Mahbub Alam, Md Hasan Ali, Goutam Kumar Kundu, Suman Das, Saikat Das, Md Rezaul Karim, Dipankar Chakraborty, Sreebash Chandra Bhattacharjee, Barun Kanti Saha
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引用次数: 0

摘要

本研究评估了孟加拉国最大港口城市Chattogram的道路沉积物中6种微量金属(Pb、Cd、Cr、Cu、Ni和Fe)和16种美国环保局优先考虑的多芳烃(PAHs)的浓度。在本研究中进行的土壤质地分析显示,存在几种不同石英含量的土壤类型。研究区土壤的基本性质和高电导率(EC)表明交通淤积量大,而有机碳含量低表明研究区可进行常规道路建设。理化特性对痕量金属和多环芳烃的积累模式没有影响。在研究的金属中,Pb污染为中至高污染,而PAHs的潜在毒性显著。铁的慢性日剂量(CDD)和危险商数(HQ)值都较高,特别是与摄入有关的儿童。儿童因微量金属而患癌症的总风险(TCR)很低,而且对成人或儿童来说,多环芳烃也没有显著的健康风险。通过分子诊断比(mdr)分析,石油是多环芳烃的主要来源。主成分分析(PCA)强调了几种重叠的痕量金属和多环芳烃来源,包括交通排放、工业活动和热原过程,表明了显著的人为影响。这些发现强调了采取污染控制行动以减轻主要道路沿线的健康和环境脆弱性的必要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Polyaromatic hydrocarbons and trace metals in road-deposited soil, source apportionment, and risk analysis: evidence from the largest port city of Bangladesh.

This study assessed the concentration of 6 trace metals (Pb, Cd, Cr, Cu, Ni, and Fe) and 16 USEPA priority polyaromatic hydrocarbons (PAHs) in road-deposited soil in Chattogram, the largest port city of Bangladesh. The soil texture analysis conducted during this study revealed the presence of several soil types with variable quartz content. The basic nature and high electrical conductivity (EC) indicate high amount of dust deposition by the moving traffic, while low content of organic carbon indicate regular road construction can be prevalent in the studied area. The physicochemical characteristics did not affect the trace metal and PAH accumulation pattern. Among the metals studied, Pb pollution was observed to be moderate to high, whereas potential toxicity of PAHs' was significant. Both Chronic Daily Dose (CDD) and Hazard Quotient (HQ) values were higher for Fe especially in children associated with ingestion. Children's total cancer risk (TCR) was low from trace metals and also there was no significant health risk linked to PAHs for either adults or children. Petroleum was shown to be the primary source of PAHs using the Molecular Diagnostic Ratios (MDRs). Principal Component Analysis (PCA) highlighted several overlapping sources of trace metals and PAHs, including traffic emissions, industrial activities, and pyrogenic processes, indicating significant anthropogenic impacts. These findings underscore the necessity for pollution control actions to mitigate health and environmental vulnerabilities along the major roads.

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来源期刊
Environmental Geochemistry and Health
Environmental Geochemistry and Health 环境科学-工程:环境
CiteScore
8.00
自引率
4.80%
发文量
279
审稿时长
4.2 months
期刊介绍: Environmental Geochemistry and Health publishes original research papers and review papers across the broad field of environmental geochemistry. Environmental geochemistry and health establishes and explains links between the natural or disturbed chemical composition of the earth’s surface and the health of plants, animals and people. Beneficial elements regulate or promote enzymatic and hormonal activity whereas other elements may be toxic. Bedrock geochemistry controls the composition of soil and hence that of water and vegetation. Environmental issues, such as pollution, arising from the extraction and use of mineral resources, are discussed. The effects of contaminants introduced into the earth’s geochemical systems are examined. Geochemical surveys of soil, water and plants show how major and trace elements are distributed geographically. Associated epidemiological studies reveal the possibility of causal links between the natural or disturbed geochemical environment and disease. Experimental research illuminates the nature or consequences of natural or disturbed geochemical processes. The journal particularly welcomes novel research linking environmental geochemistry and health issues on such topics as: heavy metals (including mercury), persistent organic pollutants (POPs), and mixed chemicals emitted through human activities, such as uncontrolled recycling of electronic-waste; waste recycling; surface-atmospheric interaction processes (natural and anthropogenic emissions, vertical transport, deposition, and physical-chemical interaction) of gases and aerosols; phytoremediation/restoration of contaminated sites; food contamination and safety; environmental effects of medicines; effects and toxicity of mixed pollutants; speciation of heavy metals/metalloids; effects of mining; disturbed geochemistry from human behavior, natural or man-made hazards; particle and nanoparticle toxicology; risk and the vulnerability of populations, etc.
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