Assessment of heavy metal pollution and human health risk in urban soils of a coal mining city in East China

Liu, Ying; Lei, Shaogang; Chen, Xiaoyang

doi:10.1080/10807039.2016.1174924

Cited by 65 publications

(44 citation statements)

References 34 publications

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“…Similarly, the LCR of Cr for adults in G, Q and N were 1.92, 2.72, 1.92 times of the max tolerable risk, suggesting that there was carcinogenic risk of Cr in study areas. The results are similar to Liu et al [58] in coal mining city. Figure 6.…”

Section: Health Risk Assessment Of Soil Heavy Metalssupporting

confidence: 91%

Potential Ecological Risk and Health Risk Assessment of Heavy Metals and Metalloid in Soil around Xunyang Mining Areas

et al. 2019

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Xunyang is rich in various metal minerals and is one of the four major metal mining areas in Shaanxi province, China. To explore the effects of soil heavy metals and metalloid pollution on the environment and human health around the mining areas, four places—Donghecun (D), Gongguan (G), Qingtonggou (Q) and Nanshagou (N)—were selected as the sampling sites. Potential ecological risk (PER) and health risk assessment (HRA) models were used to analyze the environmental and health risks around the mining areas. The concentration of heavy metals (Cd, Cr, Pb, Zn, Ni, Cu, Hg) and metalloid (As) in cultivated land in the vicinity of Xunyang mining areas indicated that, except for Cu, the remaining elements detected exceeded the threshold values at some sites. The geo-accumulation index (IGeo) revealed that soils in G and Q could be identified as being extremely contaminated. PER indicated that there was significantly high risk at G and Q for Hg. In N, Pb recorded the highest E r i , which also demonstrates a considerable pre-existing risk. HRA indicated that the hazard index (HI) for both carcinogenic and non-carcinogenic risks was much higher among children than among adults, and the ingestion pathway contributed the greatest risk to human health, followed by the dermal pathway and inhalation. Because the HI values of the metals and metalloid in the study areas were all lower than 1, there was no significant non-carcinogenic risk. However, the carcinogenic risk for Cr is relatively higher, surpassing the tolerable values in G, Q, and N. This study analyzed the ecological risks and human health risks of heavy metals and metalloid in farmland soils near the sampling mining areas, and demonstrated the importance of environmental changes caused by land development in the mining industry.

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Section: Health Risk Assessment Of Soil Heavy Metalssupporting

confidence: 91%

Potential Ecological Risk and Health Risk Assessment of Heavy Metals and Metalloid in Soil around Xunyang Mining Areas

et al. 2019

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“…For metals in soil, there are three pathways by which humans may be exposed: ingestion, inhalation, and dermal contact [ 51 ]. These indicators are commonly used in assessing risk of metals in both urban and rural areas of China [ 22 , 52 , 53 , 54 ], especially, ingestion of soil particles have been found to be an unneglectable pathway of human exposure to metals for urban populations [ 55 , 56 ]. The average daily intake (ADI) of metals in soil is calculated according to Equations (4)–(6).…”

Section: Methodsmentioning

confidence: 99%

Risk Assessment of Metals in Urban Soils from a Typical Industrial City, Suzhou, Eastern China

Wang

Liu

Gong

et al. 2017

IJERPH

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Risk of metals in urban soils is less studied, compared to that in other types of soils, hindering accurate assessment of human exposure to metals. In this study, the concentrations of five metals (As, Cd, Cr, Pb, and Hg) were analyzed in 167 surface soil samples collected from Suzhou city and their potential ecological and human health risks were assessed. The mean concentrations of As, Cd, Pb, and Hg except Cr, were higher than the background values in Jiangsu Province. Metal concentrations varied among districts, where sites of high contamination showed a punctate distribution. Principal components and correlation analyses revealed that As, Pb, and Cd could originate from the same sources. The geo-accumulation (Igeo) and potential ecological risk indices (RI) were calculated and the relatively low values of Igeo (<0) and RI (<150) suggested generally low ecological risk. The noncarcinogenic risks of the metals were relatively low for Suzhou residents (i.e., average hazard index or HI: 0.1199 for adults and 0.5935 for children, <1), while the total carcinogenic risks (TCR) of Cr and As were acceptable (TCR in the range of 1.0 × 10−6 to 1.0 × 10−4). Children faced a higher threat than adults. Results of Monte-Carlo simulations were lower than those obtained from models using deterministic parameters. Of all the uncertain parameters, the ingestion rate and body weight were the most sensitive for adults and children, respectively, while As was an important factor for both. The results as well as the factors controlling risks of metals could help better understand the risks of metals in urban soils of industrial cities in China.

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“…However, As and Hg originated from coal combustion exhaust. 12 Liu et al also confirmed that industrialization and urbanization caused serious soil heavy metal pollution by conducting a combined analysis of the landscape pattern, urbanization, industrialization, and heavy metal pollution in Taiyuan city using multivariate analysis. 17 Zhang et al .…”

Section: Anthropogenic Sourcesmentioning

confidence: 91%

“…Industrial expansion has increased the amount of heavy metals released into soils. 3 , 6 , 8 , 10 , 12 , 16 , 17 China feeds 22% of the world population with 7% of the worlds arable land. 18 However, soil quality decline and associated ecological, environmental and health problems have worsened in recent years.…”

Section: Introductionmentioning

confidence: 99%

Review of the Spatial Distribution, Source and Extent of Heavy Metal Pollution of Soil in China: Impacts and Mitigation Approaches

Sodango

Sha

et al. 2018

Journal of Health and Pollution

105

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Background.China has undergone a rapid industrial revolution and urbanization during the past three decades. This expansion is largely responsible for the release of a large amount of heavy metals into soils and is increasingly raising concerns over the potential effects on human health and the environment. The problem is drawing increasing attention, especially after an extensive nationwide soil survey report in 2014. A number of studies have examined soil contamination by heavy metals in China. However, most of these studies have been small in scale and it is therefore challenging to get a general overview of the level of contamination across the entire country.Objectives.The present study is aimed at presenting a synthesized overview of the extent, pattern, and impact of heavy metal contamination of soils in China, including mitigation approaches.Methods.Eighty-six journal articles and other literature such as reports, internet sources, and statistical yearbooks were narratively and critically synthesized to compile a holistic summary of sources of heavy metals, the extent of pollution, spatial distribution and impact of heavy metal contamination in China. The major findings from these studies are presented, along with mitigation approaches applicable to China.Discussion.A synthesis of major findings from recent scientific journals shows that about 10.18% of farmland soils which supports 13.86% of grain production in China is affected by heavy metals. The main sources of pollution are anthropogenic activities. Even though the spatial distribution of pollution is highly variable owing to natural and human factors, provinces with intensive industrial activities such as Henan, Shandong, and Sichuan are more highly polluted than others. These regions are top grain producing areas and hence require close follow-up for development of feasible approaches to mitigating crop contamination and associated health risks emerging in parts of China. The government recently launched a program aimed at determining sound reclamation strategies.Conclusion.Mitigation of heavy metal contamination in China requires coordination of different actors and integration of all feasible reclamation approaches.Competing Interests.The authors declare no competing financial interests.

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Assessment of heavy metal pollution and human health risk in urban soils of a coal mining city in East China

Cited by 65 publications

References 34 publications

Potential Ecological Risk and Health Risk Assessment of Heavy Metals and Metalloid in Soil around Xunyang Mining Areas

Potential Ecological Risk and Health Risk Assessment of Heavy Metals and Metalloid in Soil around Xunyang Mining Areas

Risk Assessment of Metals in Urban Soils from a Typical Industrial City, Suzhou, Eastern China

Review of the Spatial Distribution, Source and Extent of Heavy Metal Pollution of Soil in China: Impacts and Mitigation Approaches

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