Evaluation of multiple PRPs' contributions to soil contamination in reclaimed sites around an abandoned smelter

Shin, Woosik; Choung, Sungwook; Han, Weon Shik; Hwang, Jeonghwan; Kang, Gyeongmin

doi:10.1016/j.scitotenv.2018.06.031

Cited by 9 publications

(3 citation statements)

References 20 publications

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“…Pb is considered to be a major environmental contaminant and has been more widely reported as a cause of accidental poisoning in humans and livestock than any other substance [10]. Multiple manuscripts have reviewed specific aspects of Pb toxicology in humans [10–12] and livestock [7, 13–14]. As an environmental contaminant, Pb is often combined with Cd.…”

Section: Introductionmentioning

confidence: 99%

The effect of heavy metal contamination on humans and animals in the vicinity of a zinc smelting facility

2019

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A diagnosis of heavy metal poisoning in sheep living on pastures in the vicinity of a smelting facility in the Wumeng mountain area of China was based on laboratory tests and clinical symptoms. Furthermore, heavy metal contamination in the food chain was found to have a deleterious effect on the health of local residents. The levels of copper(Cu), zinc(Zn), cadmium (Cd), and lead (Pb) in irrigation water, soil, forages, and animal tissues were measured in samples taken from the vicinity of a smelting facility and control samples. Heavy metal contents in food (corn, rice, and wheat), as well as in human tissues (blood and hair) obtained from local residents were also determined. Hematological values were also determined in human and animal samples. The content of Cu, Zn, Cd, and Pb in irrigation water, soils, and forages were markedly higher in affected areas than in samples from healthy pastures. Concentrations of Cd and Pb were 177.82 and 16.61 times greater in forages than controls, respectively, and 68.71 and 15.66 times greater in soils than controls, respectively. The heavy metal content in food (corn, rice, and wheat) from affected areas was markedly higher than in the control samples. Cd and Pb content in the tissues of affected sheep were markedly higher than in control animals (P < 0.01), while concentrations of Cd and Pb in blood and hair samples from local residents were markedly higher than in control samples (P < 0.01). The occurrence of anemia in affected humans and animals followed a hypochromic and microcytic pattern. The intake of Cd and Pb was estimated according to herbage ingestion rates. It was found that the levels of Cd and Pb which accumulated in sheep through the ingestion of vegetation growing in the sites closest to the smelter were approximately 3.36 and 38.47 mg/kg body wt./day, respectively. Such levels surpassed the fatal dosages for sheep of 1.13 mg Cd/kg body wt/day and 4.42 mg Pb/kg body wt./day. The serum total antioxidant capacity in affected humans and animals was significantly lower than in the controls (P < 0.01). Serum protein parameters in affected humans and animals were significantly reduced (P < 0.01); therefore, it was concluded that heavy metal contamination caused harm to sheep, and also posed a significant risk to humans living in the vicinity of the zinc smelting facility.

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Section: Introductionmentioning

confidence: 99%

The effect of heavy metal contamination on humans and animals in the vicinity of a zinc smelting facility

2019

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“…These contaminants through emissions from the mining and ore processing industries are considered hazardous waste, causing local and diffuse pollution in the soil. In general, the soil at industrial sites is exposed to distinct groups of toxic heavy metal contaminants, which vary depending on the type of industry [ 4 , 5 , 6 ]. For example, soil at non-ferrous metal smelters are exposed to metal(loid)-rich, fine dust particles, which are primarily discharged with the smelting gases or ore dumps.…”

Section: Introductionmentioning

confidence: 99%

Remediation of Toxic Heavy Metal Contaminated Soil by Combining a Washing Ejector Based on Hydrodynamic Cavitation and Soil Washing Process

Kim

Cho

Purev

et al. 2022

IJERPH

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Based on the features of hydrodynamic cavitation, in this study, we developed a washing ejector that utilizes a high-pressure water jet. The cavitating flow was utilized to remove fine particles from contaminated soil. The volume of the contaminants and total metal concentration could be correlated to the fine-particle distribution in the contaminated soil. These particles can combine with a variety of pollutants. In this study, physical separation and soil washing as a two-step soil remediation strategy were performed to remediate contaminated soils from the smelter. A washing ejector was employed for physical separation, whereas phosphoric acid was used as the washing agent. The particles containing toxic heavy metals were composed of metal phase encapsulated in phyllosilicates, and metal phase weakly bound to phyllosilicate surfaces. The washing ejector involves the removal of fine particles bound to coarse particles and the dispersion of soil aggregates. From these results we determined that physical separation using a washing ejector was effective for the treatment of contaminated soil. Phosphoric acid (H3PO4) was effective in extracting arsenic from contaminated soil in which arsenic was associated with amorphous iron oxides. Thus, the obtained results can provide useful information and technical support for field soil washing for the remediation of soil contaminated by toxic heavy metals through emissions from the mining and ore processing industries.

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“…Lead is considered to be a major environmental contaminant and has been more widely reported as a cause of accidental poisoning in humans and livestock than any other substance [10]. Many papers have reviewed specific aspects of heavy metal lead toxicology in humans [10–12] and livestock [7, 13–14]. Lead as an environmental contaminant is often combined with cadmium.…”

Section: Introductionmentioning

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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Evaluation of multiple PRPs' contributions to soil contamination in reclaimed sites around an abandoned smelter

Cited by 9 publications

References 20 publications

The effect of heavy metal contamination on humans and animals in the vicinity of a zinc smelting facility

The effect of heavy metal contamination on humans and animals in the vicinity of a zinc smelting facility

Remediation of Toxic Heavy Metal Contaminated Soil by Combining a Washing Ejector Based on Hydrodynamic Cavitation and Soil Washing Process

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

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