Heavy metal contamination and health risk assessment for children near a large Cu-smelter in central China

Cai, Li‐Xuan; Wang, Qiushuang; Luo, Jie; Chen, Laiguo; Zhu, Runliang; Wang, Shuo; Tang, Cuihua

doi:10.1016/j.scitotenv.2018.09.081

Cited by 279 publications

(108 citation statements)

References 36 publications

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“…The concentrations of the main risk elements (Cd and Cu) from our study and similar results from other worldwide Cu smelting and mining localities with comparable soil properties are compared below. Cai et al [57] presented a study from Daye, Hubei Province, China. The soils in this area contain similar amounts of organic matter (15-20 g/kg) and their pH is slightly acidic to slightly alkaline (6.5-7.5).…”

Section: Trace Element Concentrationsmentioning

confidence: 99%

Pollution Assessment of Trace Elements in Agricultural Soils around Copper Mining Area

et al. 2018

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Agricultural soils from Dongchuan copper mining area were sampled and analyzed to determine the concentrations of selected trace elements, namely As, Cd, Cr, Cu, Hg, Ni, Pb and Zn. The main objectives of this study were: (1) To determine the levels of trace elements and their spatial distribution in soils; (2) to evaluate the potential ecological risk; and (3) to identify the main sources of risk element pollution. The environmental risks were assessed using five different contamination and pollution indexes. Descriptive and exploratory statistical analyses were performed to identify the relations among the trace elements in soils and possible sources of pollution. Although the values of As, Cu and Zn in the soils were significantly higher than Yunnan background values and exceeded the limits of the Chinese national standards in several sampling points, the most serious threat for the ecosystem and human health was represented by Cd. The main sources of Cu and As were identified mining activities, airborne particulates from smelters and the weathering of tailings, and partly also agricultural fertilizers. The major source of Cd was agricultural fertilizers and partly sources associated with mining and smelting activities.

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Section: Trace Element Concentrationsmentioning

confidence: 99%

Pollution Assessment of Trace Elements in Agricultural Soils around Copper Mining Area

et al. 2018

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“…Heavy metals are a global concern due to their effects on ecological risks to human health [1][2][3][4]. Moreover, heavy metals are difficult to be degraded or relieved of harmfulness through physical, chemical, or biological purification in natural environments [5], and can cause severe diseases, such as nervous disorders, visceral dysfunction, and cancers, through food chains [6,7].…”

Section: Introductionmentioning

confidence: 99%

Spatial and Temporal Variation of Dissolved Heavy Metals in the Mun River, Northeast Thailand

Liu

Han

Liu

et al. 2019

Water

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River water samples between August 2017 (wet season) and March 2018 (dry season) from the Mun River Basin in northeast Thailand were collected and their dissolved heavy metals concentrations (Al, Mn, Fe, Cu, Zn, and Ba) were measured. Compared with international drinking water guidelines, Mn was the dominant pollutant in the dry season. The correlation analysis (CA) suggested that similar sources were shown in each element pair of Al-Fe, Mn-Zn, and Fe-Ba in both seasons. The principal component analysis (PCA) results showed that the dominant source of dissolved heavy metals was sedimentary inputs or colloid destabilization in the wet season, while anthropogenic inputs were the main sources in the dry season, such as agricultural runoff, industrial effluents, and domestic discharge. On the basis of water quality index (WQI), water at most sites in the wet and dry seasons can be categorized as excellent water, except for a few sites with substandard values. The river water posed no significant health risks according to the health risk assessment, but Mn, Fe, and Ba needed to be paid more attention due to the relatively high values. Al, Fe, and Ba were the main dissolved heavy metals flowing into the Mekong River, and Cu contributed to the background value in the Mekong river.

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“…Soil samples were treated with KMnO 4 -H 2 C 2 O 4 and the contents of As and Hg were determined by AFS 17 . Besides, partial samples were treated using HNO 3 -HF-HClO 4 , and the content of Cd was determined by ICP-MS. We used standard references materials (GSS-1), replicate samples and reagent blanks for quality control. Four standard references, two blank samples and four duplicate samples were added to each batch of 50 samples.…”

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confidence: 99%

Characterizing pollution and source identification of heavy metals in soils using geochemical baseline and PMF approach

Jiang

Cai

Wen³

et al. 2020

Sci Rep

Self Cite

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It is necessary to establish local geochemical baseline concentrations (GBCs) due to the lack or the inapplicability of regional background values in the study area. The establishment of GBCs of heavy metal (HM) in soil helps in making the accurate assessment of pollution, and then provides a basis for pollution control. Based on this, a case study was undertaken to study the GBCs of the Jiedong District, Guangdong Province, China. In this research, cumulative frequency distribution curves were utilized to determine the local GBCs in the subsoils. The determined GBCs of Cr, Hg, As, Pb, Ni, Cd, Cu, Zn, Co and V were 39.91, 0.072, 11.48, 47.62, 12.70, 0.17, 14.22, 64.54, 6.31, and 68.14 mg/kg, respectively. The average concentrations of Hg, As, Pb, Cd, Cu and Zn in the topsoils exceeded the corresponding baseline concentrations. In particular, the contents of Cd and Hg were 1.53 and 2.22 times higher than GBCs. According to this baseline criterion, enrichment factor (EF), pollution load index (PLI) and ecological risk index (RI) were applied to assessing HM pollution. EF and PLI suggested that most areas were under moderate contamination, while Hg and Cd pollution was more serious. And the RI values presented that the potential ecological risks were low in most parts of the study area. The possible origins of HMs were identified by combining positive matrix factorization with EF and geostatistics. Comprehensive analysis indicated that Hg and Cd were related to industrial activities, such as textile and garment processing, plastic and rubber production and metal manufacturing. Arsenic and part of Cu mainly came from agricultural activities, namely the use of pesticides, fertilizers and livestock manures. Lead and Zn were mainly attributed to traffic emissions. Chromium, Ni, V, Co, and part of Cu were originated from natural source controlled by parent materials. The corresponding contributions of these sources were 20.61%, 24.20%, 19.22% and 35.97%, respectively. This work provides information to prevent and control the soil HM pollution by proposing the efficient management of anthropogenic sources.In recent years, soil pollution has become increasingly severe due to rapid industrialization and the increase of urban population 1-3 . Soil heavy metal (HM) pollution has received wide concern owing to the strong toxicity, bioavailability and persistence of HMs 4 . The high content of HMs in soil not only directly affects nutrients, structure and function of soil, reduces the biological activity of soil, but also adversely affects food quality and human health 5,6 . HMs in the soil pose a grave threat to human body through skin contact, inhalation and ingestion 7 . For example, cadmium can cause cardiovascular and cerebrovascular diseases and renal dysfunction 8 . Long-term exposure to lead-contaminated environments can result in serious damage to nerves, hematopoietic systems, and kidneys 9 . Therefore, HM pollution in soil is particularly concerned worldwide and urgently needs to be resolved.Determining the pollution...

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Heavy metal contamination and health risk assessment for children near a large Cu-smelter in central China

Cited by 279 publications

References 36 publications

Pollution Assessment of Trace Elements in Agricultural Soils around Copper Mining Area

Pollution Assessment of Trace Elements in Agricultural Soils around Copper Mining Area

Spatial and Temporal Variation of Dissolved Heavy Metals in the Mun River, Northeast Thailand

Characterizing pollution and source identification of heavy metals in soils using geochemical baseline and PMF approach

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