Thallium pollution and potential ecological risk in the vicinity of coal mines in Henan Province, China

Q3 Chemical Engineering

Chemical Speciation and Bioavailability Pub Date : 2018-01-01 DOI:10.1080/09542299.2018.1513820

Chengli Zhang, S. Ren, Hongdan Cheng, Weiping Zhang, Jianhua Ma, Chaosheng Zhang, Zhiyong Guo

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引用次数: 11

Abstract

ABSTRACT This study was aimed to analyze the thallium pollution and assess the potential ecological risks in the vicinity of coal mines in Henan province, China. We studied 90 surface farmland soil samples from 9 representative coal mines. The Tl concentrations were determined and the potential ecological risks were evaluated. Investigations revealed the farmland soils were modestly contaminated and the trace elements in coal mining areas transferred to the surface soils. Soil Tl contents and potential ecological risks in coal mining areas were significantly increased compared with the original soils which came from the villagers’ mud houses built 40 years ago. The soil Tl concentrations ranged from 0.25 to 0.77(mean = 0.46) mg∙kg−1, which were higher than the original level (0.42 mg∙kg−1). The potential ecological risk index of Tl ranged from 24.00 to 73.2 (mean 44.08), representing a moderate pollution level as a whole of the soils in Henan. In general, high Tl concentrations and high potential ecological risk were found around SHQ and DTG. The soil Tl concentrations exceed the original level and pose noticeable ecological risks.

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河南煤矿附近铊污染及其潜在生态风险

摘要本研究旨在分析河南省煤矿周边地区铊污染状况，并对其潜在生态风险进行评价。研究了9个代表性煤矿90个表层农田土壤样品。测定了Tl浓度，并对潜在生态风险进行了评价。调查结果表明，矿区农田土壤受到轻度污染，矿区微量元素向表层土壤转移。矿区土壤Tl含量和潜在生态风险较40年前村民泥屋原土显著增加。土壤Tl浓度在0.25 ~ 0.77(平均0.46)mg∙kg - 1之间，高于原始水平(0.42 mg∙kg - 1)。土壤的潜在生态风险指数在24.00 ~ 73.2之间(平均44.08)，总体处于中等污染水平。总体而言，SHQ和DTG附近存在高Tl浓度和高潜在生态风险。土壤Tl浓度超过原值，具有明显的生态风险。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Speciation and Bioavailability 环境科学-毒理学

CiteScore

1.62

自引率

0.00%

发文量

审稿时长

1 months

期刊介绍： Chemical Speciation & Bioavailability ( CS&B) is a scholarly, peer-reviewed forum for insights on the chemical aspects of occurrence, distribution, transport, transformation, transfer, fate, and effects of substances in the environment and biota, and their impacts on the uptake of the substances by living organisms. Substances of interests include both beneficial and toxic ones, especially nutrients, heavy metals, persistent organic pollutants, and emerging contaminants, such as engineered nanomaterials, as well as pharmaceuticals and personal-care products as pollutants. It is the aim of this Journal to develop an international community of experienced colleagues to promote the research, discussion, review, and spread of information on chemical speciation and bioavailability, which is a topic of interest to researchers in many disciplines, including environmental, chemical, biological, food, medical, toxicology, and health sciences. Key themes in the scope of the Journal include, but are not limited to, the following “6Ms”: Methods for speciation analysis and the evaluation of bioavailability, especially the development, validation, and application of novel methods and techniques. Media that sustain the processes of release, distribution, transformation, and transfer of chemical speciation; of particular interest are emerging contaminants, such as engineered nanomaterials, pharmaceuticals, and personal-care products. Mobility of substance species in environment and biota, either spatially or temporally. Matters that influence the chemical speciation and bioavailability, mainly environmentally relevant conditions. Mechanisms that govern the transport, transformation, transfer, and fate of chemical speciation in the environment, and the biouptake of substances. Models for the simulation of chemical speciation and bioavailability, and for the prediction of toxicity. Chemical Speciation & Bioavailability is a fully open access journal. This means all submitted articles will, if accepted, be available for anyone to read, anywhere, at any time. immediately on publication. There are no charges for submission to this journal.