Article
Materials Science, Multidisciplinary
Jing Wei, Xiaogang Zheng, Jintong Liu
Summary: In order to accurately understand soil environmental quality and address the shortcomings of the traditional method, a complex geological soil heavy metal evaluation modeling method based on the Nemerow index method was proposed. Through index evaluation methods, ArcGIS technology, and human health risk assessment, the spatial distribution of heavy metals in the soil and the current status of pollution accumulation were obtained. The pollution degree of soil heavy metals was analyzed using the comprehensive pollution index (CPI) method, geo-accumulation index (GAI) method, and potential ecological hazard (PEH) index. Based on this, a complex geological soil heavy metal evaluation model was established using the Nemerow index method to evaluate heavy metal pollution in complex geological soils.
Article
Multidisciplinary Sciences
Panatda Pibul, Siriuma Jawjit, Supabhorn Yimthiang
Summary: This study investigates the pollution status, pollution sources, and ecological risk of heavy metals from manual WEEE dismantling facilities in the Nakhon Si Thammarat province of Thailand. The results show higher concentrations of heavy metals during the dry season compared to the wet season. While only a small percentage of WEEE processing workshops exceed soil quality standards, a significant number of electric repair shops show contamination from heavy metals. This highlights the need for policymakers to address the negative environmental impact of electronic repair businesses.
Article
Food Science & Technology
Guohui Shen, Xin Ru, Yanting Gu, Wei Liu, Kunzhen Wang, Baiyi Li, Yanzhi Guo, Juan Han
Summary: Heavy metal(loid)s pollution in farmland soil is a significant environmental and human health issue. Accurately understanding and evaluating the levels of heavy metal pollution in soil is crucial for sustainable agricultural development and food safety. Mountainous and hilly areas, which serve as both industrial and agricultural regions, are more susceptible to heavy metal pollution in farmland soil.
Article
Environmental Sciences
Yefeng Jiang, Huading Shi, Lina Yi, Songchao Chen, Yin Zhou, Jieliang Cheng, Mingxiang Huang, Zhou Shi
Summary: By analyzing 188 peer-reviewed articles published between 2004 and 2022, it was found that potentially toxic elements in soils from industrial and mining sites in China pose a public health risk. The concentrations of eight elements, including As, Cd, Hg, and Pb, were significantly higher than background values, and a considerable proportion of the examined sites exceeded soil risk screening values. The study also demonstrated the ecological and health risks associated with these elements, highlighting the need for control measures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Dejun Yang, Huawei Zhu, Jianqin Liu, Yajun Zhang, Song Wu, Jibing Xiong, Fayuan Wang
Summary: Laboratory experiments were conducted to analyze the heavy metal content in soil samples collected from industrial areas in Xuzhou City. The results showed that different depths had varying levels of heavy metals, with Cd exceeding the risk screening value and causing pollution in four plants. Different industrial plants had different distribution characteristics and types of heavy metals due to their raw materials and products. Overall, there were no noncarcinogenic health risks, but the carcinogenic effects of Cr in plants A and C were unacceptable.
Article
Geochemistry & Geophysics
A. Ali Yari, J. Varvani, R. Zare
Summary: The study evaluated and zoned the environmental hazards of heavy metals in vineyards of Malayer city using the Nemerow integrated pollution index. The results showed that the soils are not at serious risk of soil contamination with heavy metals.
Article
Biochemistry & Molecular Biology
Ziyou Bai, Fuzhong Wu, Yinping He, Zhiwei Han
Summary: The study analyzed the concentrations of heavy metals in the tailings of the Zuoxiguo antimony mine, finding high levels of pollution and serious threats to both the ecological environment and human health, especially from Sb and As. It is recommended that local governments focus on managing Sb and As to protect the environment and public health.
ENVIRONMENTAL POLLUTANTS AND BIOAVAILABILITY
(2023)
Article
Environmental Sciences
Xianfei Huang, Xianliang Wu, Xiangchen Tang, Zhenming Zhang, Jianrong Ma, Jiachun Zhang, Huijuan Liu
Summary: The study investigated heavy metal pollution and microbial diversity in the Wanshan mercury mine and its surroundings, revealing varying degrees of soil pollution with high mercury risk. Cultivated land displayed higher community richness compared to the mercury mining district and woodland.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Multidisciplinary Sciences
Kai Su, Qin Wang, Linxiao Li, Rong Cao, Yingwei Xi, Guizhi Li
Summary: This study evaluated the water quality of Heilongtan Reservoir using the single factor pollution index method and the Nemerow pollution index method, and analyzed the temporal and spatial changes of water quality. The results showed that the water quality of Heilongtan Reservoir met the Category III standard or above of the Surface Water Environmental Quality Standard from 2019 to 2021, and the water quality did not change significantly.
Article
Environmental Sciences
Le Song, Jiazhong Qian, Fawang Zhang, Xiangke Kong, Hui Li, Song Luan, Qinjun Zhang, Zhiqiang Kang, Zhantao Han, Zhaoji Zhang
Summary: The conventional ecological remediation technologies for non-ferrous metal tailings have limitations in cost and effectiveness. This study presents an economic and effective model for ecological remediation by substrate amelioration and vegetation restoration. Experimental results show that this model can effectively control heavy metal pollution risk in tailings.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Hao Zhang, Zhongjian Zhang, Xiaolei Ma, Qiguo Zhang
Summary: The study investigated the soil and plant samples in the Liujiadian tailings pond basin in Pinggu District, Beijing, revealing arsenic, lead, and cadmium as the main pollutants. The potential ecological risk of the whole study area is very high, mainly from the tailings pond.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Environmental Sciences
Mohammad Amir Hossain Bhuiyan, Shamal Chandra Karmaker, Md Bodrud-Doza, Md Abdur Rakib, Bidyut Baran Saha
Summary: This study analyzed soil samples from agricultural lands in Dhaka and found that more than 90% of the soil samples were polluted by higher levels of Cr and Cd, with about 73% of the samples moderately polluted by heavy metals.
Article
Environmental Sciences
Said Muhammad
Summary: This study examined the physicochemical parameters of water and sediments in the Naltar Lakes in northern Pakistan, and found that some sampling sites exceeded the drinking water standards set by the World Health Organization for heavy metals. However, the water quality indices indicated that the water of the Naltar Lakes was of good quality, and the risk indices showed a higher risk of arsenic intake for children.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agronomy
Hongzhi Dong, Zongjun Gao, Jiutan Liu, Bing Jiang
Summary: The purpose of this study is to evaluate the bio-accumulation of heavy metals in different soil-crop systems and the geo-accumulation in different agricultural growing regions. The results showed that the soil in the Jiao River Basin was uncontaminated and the heavy metal concentrations in crops were within the limits of national food safety standards. Wheat, corn, potato, and leek were found to have strong bio-accumulation ability for copper, zinc, and cadmium. The ecological risk factor was relatively low in the study area.
Article
Green & Sustainable Science & Technology
Qiaoli Wang, Jiannan Cai, Feng Gao, Zijun Li, Mengsheng Zhang
Summary: Tailings dams in mining areas often experience haphazard dumping of tailings waste, resulting in heavy metal pollution in surrounding areas. This study analyzed the pollution levels and ecological risk of heavy metals in an abandoned lead-zinc mine tailings dam. The results showed that lead, zinc, copper, and arsenic were the main heavy metal pollutants, with the highest concentrations at the interface layer. The pollution levels followed the order of interface layer > tailings layer > deep zone > reclaimed zone, and the potential ecological risk correlated with the pollution levels. The heavy metal pollution originated from lead-zinc ore extraction and posed potential risks to water security and ecological resources.