Heavy metal pollution and health risk assessment of agricultural soils in a typical peri-urban area in southeast China

Huang, Ying; Chen, Qianqian; Deng, Meihua; Japenga, J.; Li, Tingqiang; Yang, Xiaoe; He, Zhenli

doi:10.1016/j.jenvman.2017.10.072

Cited by 439 publications

(160 citation statements)

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“…Irrespective of land use, the largest contribution to non-carcinogenic risk to children was ingestion, accounting for 96.7%. Although many studies have shown that HQ ing was the main contribution route to the non-carcinogenic risks of children and adults [60][61][62], in this study, the contribution of the three routes to adults was different from that to children. The largest contribution route to adults was dermal contact, accounting for 71.1%, which was mainly on account of the contribution of HQ dermal of Cr.…”

Section: Human Health Risk Assessmentcontrasting

confidence: 66%

Pollution, Sources and Human Health Risk Assessment of Potentially Toxic Elements in Different Land Use Types under the Background of Industrial Cities

et al. 2020

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Residents in industrial cities may be exposed to potentially toxic elements (PTEs) in soil that increase chronic disease risks. In this study, six types of PTEs (Zn, As, Cr, Ni, Cu, and Pb) in 112 surface soil samples from three land use types—industrial land, residential land, and farmland—in Tonghua City, Jilin Province were measured. The geological accumulation index and pollution load index were calculated to assess the pollution level of metal. Meanwhile, the potential ecological risk index, hazard index, and carcinogenic risk were calculated to assess the environmental risks. The spatial distribution map was determined by the ordinary kriging method, and the sources of PTEs were identified by factor analysis and cluster analysis. The average concentrations of Zn, As, Cr, Ni, Cu, and Pb were 266.57, 15.72, 72.41, 15.04, 20.52, and 16.30 mg/kg, respectively. The results of the geological accumulation index demonstrated the following: Zn pollution was present in all three land use types, As pollution in industrial land cannot be neglected, Cr pollution in farmland was higher than that in the other two land use types. The pollution load index decreased in the order of industrial land > farmland > residential land. Multivariate statistical analysis divided the six PTEs into three groups by source: Zn and As both originated from industrial activities; vehicle emissions were the main source of Pb; and Ni and Cu were derived from natural parent materials. Meanwhile, Cr was found to come from a mixture of artificial and natural sources. The soil environment in the study area faced ecological risk from moderate pollution levels mainly contributed by As. PTEs did not pose a non-carcinogenic risk to humans; however, residents of the three land use types all faced estimated carcinogenic risks caused by Cr, and As in industrial land also posed high estimated carcinogenic risk to human health. The conclusion of this article provides corresponding data support to the government’s policy formulation of remediating different types of land and preventing exposure and related environmental risks.

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Section: Human Health Risk Assessmentcontrasting

confidence: 66%

Pollution, Sources and Human Health Risk Assessment of Potentially Toxic Elements in Different Land Use Types under the Background of Industrial Cities

et al. 2020

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“…A similar performance was also found in previous reports. The concentrations of Cd were found in vegetable soil (0.46 mg kg −1 ) and agricultural soil (0.80 mg kg −1 ) as low levels, but the SFPIs of Cd were up to 3.8316 and 2.47,26 respectively. The background value of Cd was low compared to other THMs that resulted in the earlier mentioned performance.…”

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confidence: 95%

Risk assessment and prediction for toxic heavy metals in chestnut and growth soil from China

Zheng

et al. 2019

J Sci Food Agric

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BACKGROUND Toxic heavy metals (THMs) cause severe environmental hazards and threaten human health through various consumption of food stuff. However, little is known of THMs in chestnuts. In this study, the risk assessment and prediction of THMs [lead (Pb), arsenic (As), chromium (Cr), cadmium (Cd) and mercury (Hg)] in chestnuts and growth soils from China were investigated. RESULTS The main detected THMs in chestnuts and growth soils were As and Cd. The total pollution levels of the five THMs (Nemerow pollution indexes, NPIs) were 0.062 and 1.06, respectively. The dietary risks for children were higher than those of adults, especially short‐term non‐carcinogenic risk. The main combined risks from the relationships between THMs were Pb‐Cr (r = 0.85, P < 0.01) in chestnuts and Pb‐As (r = 0.59, P < 0.01) in growth soils. The risk source was found to be the uptake effect of THMs from soil to chestnut, with the highest bioaccumulation factors (BCFs) of Cd (0.254). Several comprehensive risk models were established with the highest coefficient of determination (R2) of 0.79. In addition, the main contribution rates of different soil parameters to comprehensive risk of THMs uptake were 49.8% (Cd), 23.4% (pH), 13.8% (Cr) and 13.0% (organic carbon). CONCLUSION The total pollution levels of THMs fell outside of the safety domain in growth soils. Furthermore, more attention needs to be paid to Cd pollution owing to its low environment background value and high accumulation ability. Three main soil parameters (Cr content, pH, organic carbon) played important roles in the formations and accumulations of THMs in chestnuts. © 2019 Society of Chemical Industry

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“…Taking into account that the sheep were fed exclusively with forage from this pasture, the ingested heavy metal rates were estimated to be in the range of 3.27–38.47 and 0.19–3.36 mg/kg body wt./day for lead and cadmium, respectively. Registered values for the minimum cumulative fatal dosage for sheep are estimated at 4.42 and 1.13 mg/ body wt./day for lead and cadmium, respectively [14, 31]. Therefore, the ingestion of forages growing in this pasture, especially in the sites closest to the zinc smelters constitutes a clear cadmium and lead toxicity hazard for livestock.…”

Section: Discussionmentioning

confidence: 99%

The effect of heavy metal contamination on human and animal health in the vicinity of a zinc smelter

Shen

Chi

Xiong

2018

Preprint

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15A diagnosis of heavy metal poisoning in sheep living on pasture in the vicinity of a zinc smelter 16 was made based on laboratory tests and clinical signs in livestock in the Wumeng mountain area 17 of China. Heavy metal contamination has generated serious harm to the health of local farmers 18 after passing through the food chain. The levels of copper, zinc, cadmium, and lead in irrigation 19 water, soil, forages, and animal tissues were measured in samples taken from within the vicinity of 20 a zinc smelter and control samples. Heavy metal concentrations in foods (corn, rice, and wheat) 21 and human tissues (blood and hair) from local farmers living in affected areas and controls were 22 also determined. Hematological values were determined in human and animal samples. The 23 copper, zinc, cadmium, and lead concentrations in irrigation water, soils, and forages were 24 markedly higher than the levels in healthy pastures. Cadmium and lead concentrations were 25 177.82 and 16.61 times greater in forages than controls, respectively, and 68.71 and 15.66 times 26 greater in soils than controls, respectively. Heavy metal concentrations in food (corn, rice, and 27 wheat) in affected areas were markedly higher than in the control samples. Cadmium and lead 28 concentrations in the tissues of affected sheep were markedly higher than in control animals (P < 29 0.01). Cadmium and lead concentrations in blood and hair samples from affected farmers were 30 markedly higher than the control samples (P < 0.01). The occurrence of anemia in affected 31 persons and animals followed a hypochromic and microcytic pattern. The intake of cadmium and 32 lead was estimated according to herbage ingestion rates. It was found that the levels of cadmium 33 and lead accumulated in sheep through the ingestion of vegetation growing in the sites closest to 34 the zinc smelter were approximately 3.36 mg Cd/kg body wt./day and 38.47 mg Pb/kg body 35 wt./day. This surpassed the fatal dosages for sheep of 1.13 mg Cd/kg body wt/day and 4.42 mg 36 Pb/kg body wt./day. Serum total antioxidant capacity in affected humans and animals was 37 significantly lower than in the controls (P < 0.01). The serum protein parameters in affected 38 humans and animals were significantly reduced (P < 0.01). It was therefore concluded that heavy 39 metal contamination has caused serious harm to sheep in this area. The heavy metal 40 concentrations in food and grain also pose a significant risk to human health in the Chinese 41 Wumeng mountain area. 65 China. The area has extensive heavy metal reserves, characterized by large quantities of ores 66 containing zinc, copper, and lead [2]. A large number of industrial enterprises were established for 67 the purpose of lead, zinc, copper, and polymetallic extraction in the 2010s. After a few years of 68 intensive development, metallurgical industries occupied a very wide area of former pasture and 69 farmland [1]. A number of sheep grazing on pastures in the vicinity died after the smelters went 70 into operation. All of the...

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Heavy metal pollution and health risk assessment of agricultural soils in a typical peri-urban area in southeast China

Cited by 439 publications

References 47 publications

Pollution, Sources and Human Health Risk Assessment of Potentially Toxic Elements in Different Land Use Types under the Background of Industrial Cities

Pollution, Sources and Human Health Risk Assessment of Potentially Toxic Elements in Different Land Use Types under the Background of Industrial Cities

Risk assessment and prediction for toxic heavy metals in chestnut and growth soil from China

The effect of heavy metal contamination on human and animal health in the vicinity of a zinc smelter

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