Lead Isotope Signatures and Source Identification of Heavy Metals in Vegetable Soils Irrigated with Swine Wastewater of Jiangxi Province, China.

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Maolan Wang, Yanhui Zhang, Wanting Zhou, Yingying Xiong, Xiandan Zhang, Ben Guo
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引用次数: 0

Abstract

The rapid development of livestock and poultry industry in China has caused serious environment pollution problems. To understand the heavy metals accumulation and identify their sources, 7 heavy metals contents and lead isotope ratios were determined in 24 soil samples from vegetable fields irrigated with swine wastewater in Dongxiang County, Jiangxi Province, China. The results showed that the concentration of Cr, Ni, Cu, Zn, As, Cd and Pb in the swine wastewater irrigated vegetable soils varied from 38.5 to 86.4, 7.57 to 30.6, 20.0 to 57.1, 37.5 to 174, 9.18 to 53.1, 0.043 to 0.274 and 12.8 to 37.1 mg/kg, respectively. The soils were moderately to heavily polluted by As, moderately polluted by Cr, Ni, Cu, Zn and Cd, and unpolluted to moderately polluted by Pb. Sampling soils were classified as moderately polluted according to the Nemerow comprehensive pollution index. Lead isotope and Principal Component Analysis (PCA) analysis indicated that swine wastewater irrigation and atmospheric deposition were the primary sources of the heavy metals.

Abstract Image

中国江西省猪废水灌溉菜地土壤中铅的同位素特征及重金属来源鉴定。
中国畜禽养殖业的快速发展造成了严重的环境污染问题。为了了解重金属的积累情况并确定其来源,研究人员测定了江西省东乡县 24 块用猪场废水灌溉的菜地土壤样品中 7 种重金属的含量和铅同位素比值。结果表明,猪粪废水灌溉菜地土壤中铬、镍、铜、锌、砷、镉和铅的含量分别为 38.5 至 86.4、7.57 至 30.6、20.0 至 57.1、37.5 至 174、9.18 至 53.1、0.043 至 0.274 和 12.8 至 37.1 mg/kg。土壤受到砷的中度至重度污染,受到铬、镍、铜、锌和镉的中度污染,受到铅的未污染至中度污染。根据 Nemerow 综合污染指数,采样土壤被划分为中度污染。铅同位素和主成分分析(PCA)分析表明,猪废水灌溉和大气沉降是重金属的主要来源。
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来源期刊
CiteScore
5.60
自引率
3.70%
发文量
230
审稿时长
1.7 months
期刊介绍: The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.
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