Article
Environmental Sciences
Tao Zhang, Pei Wang, Mingguo Wang, Jinwei Liu, Lei Gong, Shibin Xia
Summary: This study focused on riparian soils in the lower sections of the Lhasa River to examine the characteristics and sources of heavy metals in high-cold regions. The research found that the topsoil was more polluted than the deep soil, with Cd being the primary contributor to overall contamination. The study identified five sources for the six heavy metals and concluded that the heavy metals in the riparian soil pose no harm to human health. Monitoring of these heavy metals is important to ensure their safe utilization.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Shuai Shao, Bifeng Hu, Yunhan Tao, Qihao You, Mingxiang Huang, Lianqing Zhou, Qiuxiao Chen, Zhou Shi
Summary: The study successfully identified and apportioned the sources of five heavy metals in Wenzhou City using a combination of qualitative and quantitative approaches. A preliminary ecological risk assessment showed that Cd and Hg were the main contributors to contamination. The sources were found to be from different natural or anthropogenic origins.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2022)
Article
Environmental Sciences
Lihong Li, Hongxue Qi, Xiaodong Li
Summary: The composition, source, and health risks of PM2.5-bound metals were investigated during winter haze in Yuci College Town, Shanxi, China. The study found that the concentrations of metals were relatively high, with zinc, copper, lead, arsenic, nickel, chromium (VI), cadmium, and cobalt being the most abundant. The major sources of metals were identified as combustion, traffic emissions, and industry sources. Some metals exceeded the environmental air quality standards, with arsenic and chromium (VI) being the main contributors to health risks.
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
Engineering, Environmental
Haiping Luo, Qingzheng Wang, Qingyu Guan, Yunrui Ma, Fei Ni, Enqi Yang, Jun Zhang
Summary: The study revealed that heavy metals in dust storms are mainly contaminated by human activities, with sources from industrial, transportation, natural, and agricultural sectors. The comprehensive ecological risk of heavy metals is low, but moderate and above risks exist at individual sites. Both adults and children face higher carcinogenic and non-carcinogenic risks from the ingestion route, with children having higher risks than adults.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Reyhane Madadi, Nezha Mejjad, Gabriel Enrique De-la-Torre
Summary: Surface sediment and water samples were collected from Musa Estuary and analyzed for metals concentrations using ICP-MS. Cd had the highest contribution to ecological risk (49% based on PERI index). The Tessier procedure revealed that with increasing contamination, exchangeable and carbonate fractions of Cd, Pb, Ni, Zn, and Cu increased. Cd and Pb were found to have a high risk of release based on the mobility factor and individual contamination factor indices. Cluster analysis showed different sources for different metals. The adsorption of Co, Ni, V, and Zn to sediments was influenced by Eh/pH, DOC/temperature, and salinity.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Ziwan Chen, Jing Xu, Ruichun Duan, Shansong Lu, Zhaolei Hou, Fan Yang, Min Peng, Qingxia Zong, Zeming Shi, Linsong Yu
Summary: In this study, surface soil samples were collected and the potential ecological risks were assessed. The results showed that the high-risk area is mainly affected by lead-zinc mines and the potential ecological risk posed by heavy metals is generally low. Additionally, dermal contact was identified as the main pathway for health risks.
Article
Environmental Sciences
Ping Wang, Weihua Huang, Fuyue Ren, Deqiang Fan
Summary: More than 40 enterprises have settled in the steel-supporting industrial park in Lanshan District, Rizhao City, eastern China. The soil around steel factories in this area shows heavy pollution and high ecological risk due to the accumulation of heavy metals, especially Cd, Ni, and Pb. The sources of these heavy metals were identified through various analyses, with agricultural and traffic sources contributing to Cu, Pb, and Cd, and industrial materials being the main source for Zn, Cd, Fe, and Mg. This study provides valuable information for the investigation and evaluation of soil heavy metal pollution in industrial regions.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Agronomy
Qirong Hu, Jinbao Li, Yongzhi Wang, Pengcheng Huang, Xuemin He
Summary: This study investigated the characteristics and sources of heavy metal pollution in different grassland soil types in Altay. The results showed that natural grasslands were the most severely contaminated, with zinc and lead being the main pollutants. The sources of pollution were identified as natural and mining activity sources, industrial coal combustion and sewage sources, as well as an unknown source.
Review
Engineering, Environmental
Krishno Chandra, Ram Proshad, Maksudul Islam, Abubakr M. Idris
Summary: Heavy metals in soil pose risks to biodiversity and human health, and accurately assessing these effects is challenging. This study evaluates the levels of 21 metals in soils around a coal-mining area in Bangladesh and applies an integrated risk assessment approach. The results show elevated levels of certain metals and indicate higher risks from various sources, including industrial and agricultural activities. The findings also highlight the potential health hazards, particularly cancer risks, associated with metal contamination from different sources.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Environmental Sciences
Tian Xie, Fei Lu, Meie Wang, Yuan Zhang, Changfeng Liu, Weiping Chen
Summary: This study introduced a novel method for assessing soil pollution in Macau, China, using anthropogenic background values and entropy weight method. It found that a significant portion of the sites had no specific point source pollution, and identified mercury and high molecular weight polycyclic aromatic hydrocarbons as the main contaminants in the soil. Through positive matrix factorization, three main anthropogenic sources of contaminants and their contributions were successfully identified and quantified in the study area.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Soil Science
Lingchen Mao, Hui Kong, Feipeng Li, Zhengjie Chen, Lin Wang, Tong Lin, Zhibo Lu
Summary: The intense input of potential toxic elements (PTEs) from diffuse anthropogenic sources to agricultural alluvial soils has caused a bias in the geochemical baseline value (GBV) established by current methods. This study aimed to assess the extent of bias and establish the GBV for 9 PTEs based on their source contribution on the largest alluvial islands in China, the Chongming Islands. The results showed that different sources contributed to the PTE concentrations in the soil samples, leading to significant differences in the GBV of certain elements. Using a source-based GBV, it was found that a considerable proportion of sampling sites were contaminated by As and Cd. This study emphasized the importance of considering different source contributions in determining the GBV to avoid underestimation of PTE enrichment from intense human diffuse sources.
Article
Biodiversity Conservation
Lei Chai, Yuhong Wang, Xin Wang, Liang Ma, Zhenxiang Cheng, Limin Su
Summary: This study assessed the pollution levels of heavy metals in cultivated soils in Lanzhou using various indices and methods. The analysis revealed that most sampling sites had moderate ecological risk and insignificant health risks from heavy metals. The study also identified the sources of heavy metals in the area, providing valuable information for pollution source apportionment in other regions.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Hong-gil Lee, Hyun-Koo Kim, Hoe-Jung Noh, Yoon Joo Byun, Hyen-Mi Chung, Ji-In Kim
Summary: This study used multiple pollution indices and cluster analysis to quantify the sources and levels of anthropogenically derived heavy metal pollution in soil. The results showed relationships between contamination sources and levels of HMs, with certain anthropogenic activities or land use patterns associated with higher levels of contamination.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Environmental Sciences
Jialiang Han, Longchao Liang, Yaru Zhu, Xiaohang Xu, Le Wang, Lihai Shang, Pan Wu, Qixin Wu, Xiaoli Qian, Guangle Qiu, Xinbin Feng
Summary: The farmland soils in the Karst Plateau area are highly vulnerable to heavy metal pollution, with notable accumulation of Pb, Sb, Zn, As, and Cd. The dominant sources of pollution were related to Pb-Zn activities, cement product activities, coal mining, and coal combustion. Arsenic, Cadmium, and Lead were identified as priority contaminants in the farmland soils, posing higher health risks to children.
LAND DEGRADATION & DEVELOPMENT
(2022)