Human health risk from soil heavy metal contamination under different land uses near Dabaoshan Mine, Southern China

Zhao, Huarong; Xia, Beicheng; Fan, Chao; Zhao, Peng; Shen, Shi‐Li

doi:10.1016/j.scitotenv.2011.12.047

Cited by 374 publications

(124 citation statements)

References 43 publications

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“…The concentration of heavy metal and As in AYK, MSK, and KS was higher than those of other villages, indicating that the smelt activities make main contribution to the high concentration of heavy metal in the topsoil. This is in agreement with previous studies (Li et al 2015;Zhao et al 2012).…”

Section: Heavy Metal Concentrations In Topsoilsupporting

confidence: 94%

Concentrations, spatial distribution, and risk assessment of soil heavy metals in a Zn-Pb mine district in southern China

Zhang

et al. 2016

Environ Monit Assess

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China is one of the largest producers and consumers of lead and zinc in the world. Lead and zinc mining and smelting can release hazardous heavy metals such as Cd, Pb, Zn, and As into soils, exerting health risks to human by chronic exposure. The concentrations of Cd, Zn, Pb, and As in soil samples collected from a PbZn mining area with exploitation history of 60 years were investigated. Health risks of the heavy metals in soil were evaluated using US Environmental Protection Agency (US EPA) recommended method. A geo-statistical technique (Kriging) was used for the interpolation of heavy metals pollution and Hazard Index (HI). The results indicated that the long-term Pb/Zn mining activities caused the serious pollution in the local soil. The concentrations of Cd, As, Pb, and Zn in topsoil were 40.3 ± 6.3, 103.7 ± 37.3, 3518.4 ± 896.1, and 10,413 ± 2973.2 mg/kg dry weight, respectively. The spatial distribution of the four metals possessed similar patterns, with higher concentrations around Aayiken (AYK), Maseka (MSK), and Kuangshan (KS) area and more rapidly dropped concentrations at upwind direction than those at downwind direction. The main pollutions of Cd and Zn were found in the upper 60 cm, the Pb was found in the upper 40 cm, and the As was in the upper 20 cm. The mobility of metals in soil profile of study area was classed as Cd > Zn ≫ Pb > As. Results indicated that there was a higher health risk (child higher than adult) in the study area. Pb contributed to the highest Hazard Quotient (57.0~73.9 %) for the Hazard Index.

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Section: Heavy Metal Concentrations In Topsoilsupporting

confidence: 94%

Concentrations, spatial distribution, and risk assessment of soil heavy metals in a Zn-Pb mine district in southern China

Zhang

et al. 2016

Environ Monit Assess

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“…Hence, it is essential to monitor the suitability of water for these activities. Understanding the concerns due to presence of heavy metals, many studies have been carried out in groundwater (Isa et al 2014;Li et al 2015;Ashraf et al 2015), surface water (Varol and Ş en 2012;Thuong et al 2013), soil (Zhao et al 2012;Li et al 2014), sediments (Varol 2011;Chabukdhara and Nema 2012) and plants and vegetables (Sharma et al 2007;Luo et al 2011;Yousaf et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Human exposure risk to heavy metals through groundwater used for drinking in an intensively irrigated river delta

et al. 2016

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Drinking water containing heavy metals above the maximum permissible limits cause potential risk to human health. The aim of this study was to determine the groundwater suitability for drinking use based on heavy metal concentration and the associated human exposure risk in an intensively irrigated part of the Cauvery river basin, Tamil Nadu, India. Sixteen heavy metals analysed were in the order of dominance of chromiumChromium and zinc were within permissible limits of the Bureau of Indian Standards for drinking water quality, and silver, lead and nickel were above limits in all the groundwater samples. In less than 50 % of the groundwater samples, aluminium, boron, cadmium, copper, iron and manganese exceeded their individual permissible limits. Heavy metal pollution index based on 11 heavy metals indicated that groundwater quality of this area is poor-to-unsuitable. Non-carcinogenic risk for humans due to ingestion of groundwater through drinking water pathway was very high for infants, children and adults. Silver, lead, nickel, cadmium and manganese largely contributed to the health hazard. Sources of heavy metals were identified to be geological and from human activities, i.e., application of fertilizers in agricultural fields, seawater intrusion due to intensive pumping for agriculture and wastewater from industries. Groundwater and surface water in this area pose large threat due to high levels of heavy metals, and it is necessary to avoid this water for drinking due to potential risk of health hazard. This study also demonstrated the application of HPI and human exposure hazard index to study the groundwater quality based on heavy metals' concentration.

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“…Scholars have already found that coal became to be an important source of blood lead pollution in children after leaded gasoline was phased out . Exposure to heavy metals and metalloids, such as Pb, Cd, Ni, and As, could cause serious harm to humans (Chiodo et al, 2004;Diaz-Somoano et al, 2009;He et al, 2009;Koller et al, 2004;Zhao et al, 2012), such as lung cancer, kidney dysfunction, cognitive impairment, and chronic bronchitis neurological effects. Because of the larger absorption rate (Al-Saleh et al, 1999) and intake (Fitzgerald et al, 1998) as well as frequent hand-to-mouth activity, children are especially sensitive to heavy metal and metalloid poisoning (Fowler, 1993).…”

Section: Introductionmentioning

confidence: 99%

Health risks from the exposure of children to As, Se, Pb and other heavy metals near the largest coking plant in China

Cao

Duan

Zhao

et al. 2014

Science of The Total Environment

325

112

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• The concentration of heavy metals and metalloids in environment and children's blood are observed around the Chinese largest coking plant.• The health risk assessments of children are analyzed.• Foods from the coking plant are heavily contaminated by As, Cr and Se.• Food Ingestion pathway contributes most to children's average daily dose for most heavy metals and metalloids.• Higher potentially non-carcinogenic and carcinogenic risks happen to the local children. a b s t r a c t a r t i c l e i n f o Coking influences environmental quality and poses high risks to human health as large amounts of heavy metals and metalloids are emitted into the environment from coal during the coking process. Health risks depend heavily on multi-pathway and element-specific exposures, which have, unfortunately, been rarely studied. In this study, children's health risks and exposure levels to As, Se, and heavy metals (Pb, Cd, Cr, Ni, Co, Zn, Cu, Mn, V and Sb) in the water, soil, dust, air and locally produced food were studied based on field sampling and questionnaire-based surveys around the largest coking area in China. Human blood samples were collected and analyzed to indicate the exposure levels. The non-carcinogenic risks to children mainly resulted from Cr, Mn, Pb, As and Sb, the levels of which were 3 to 10 times higher than the acceptable levels (1.0 × 10 −6 ). The carcinogenic risks to children were 30 to 200 times higher than the safe level (1.0 × 10 −6 -1.0 × 10 −4 ), which could be attributed to Cr, As and Ni pollution. The estimated risks mainly came from the pathway involving the ingestion of locally produced food, accounting for more than 85% in total for most elements. For As, the food ingestion and air inhalation exposure pathways both contributed approximately 50%, respectively. The high risks in this study highlight the attention paid to the health of children who live in the vicinity of coking activities and the importance of site-specific multi-pathway health risk assessments and food safety to protect potentially exposed children.

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Human health risk from soil heavy metal contamination under different land uses near Dabaoshan Mine, Southern China

Cited by 374 publications

References 43 publications

Concentrations, spatial distribution, and risk assessment of soil heavy metals in a Zn-Pb mine district in southern China

Concentrations, spatial distribution, and risk assessment of soil heavy metals in a Zn-Pb mine district in southern China

Human exposure risk to heavy metals through groundwater used for drinking in an intensively irrigated river delta

Health risks from the exposure of children to As, Se, Pb and other heavy metals near the largest coking plant in China

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