Evaluation of human exposure to arsenic due to rice ingestion in the vicinity of abandoned Myungbong Au–Ag mine site, Korea

Lee, Jin-Soo; Lee, Sang‐Woo; Chon, Hyo‐Taek; Kim, Kyoung‐Woong

doi:10.1016/j.gexplo.2007.04.009

Cited by 81 publications

(35 citation statements)

References 10 publications

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“…The maximum concentration of As in MB mine was 0.34 mg kg -1 , which was an approximately 2 ~ 10 times higher than other mining sites. Lee et al (2008) reported that this site was highly As-contaminated district in the range of 0.24 ~ 0.72 mg kg -1 with an average value of 0.41 mg kg -1 . Besides, those values exceeded the globally normal As levels of 0.082 ~ 0.202 mg kg -1 in polished rice (Zavala and Duxbury, 2008).…”

Section: Resultsmentioning

confidence: 92%

Assessment of health risk associated with arsenic exposure from soil, groundwater, polished rice for setting target cleanup level nearby abandoned mines

Lee¹,

Kim²,

Jeong³

et al. 2011

Korean Journal of Soil Science and Fertilizer

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This study focused on health risk assessment via multi-routes of As exposure to establish a target cleanup level (TCL) in abandoned mines. Soil, ground water, and rice samples were collected near ten abandoned mines in November 2009. The As contaminations measured in all samples were used for determining the probabilistic health risk by Monte-Carlo simulation techniques. The human exposure to As compound was attributed to ground water ingestion. Cancer risk probability (R) via ground water and rice intake exceeded the acceptable risk range of 10 -6 ~ 10 -4 in all selected mines. In particular, the MB mine showed the higher R value than other mines. The non-carcinogenic effects, estimated by comparing the average As exposure with corresponding reference dose were determined by hazard quotient (HQ) values, which were less than 1.0 via ground water and rice intake in SD, NS, and MB mines. This implied that the non-carcinogenic toxic effects, due to this exposure pathway had a greater possibility to occur than those in other mines. Besides, hazard index (HI) values, representing overall toxic effects by summed the HQ values were also greater than 1.0 in SD, NS, JA, and IA mines. This revealed that non-carcinogenic toxic effects were generally occurred. The As contaminants in all selected mines exceeded the TCL values for target cancer risk (10 -6 ) through ground water ingestion and rice intake. However, the As level in soil was greater than TCL value for target cancer risk via inadvertent soil ingestion pathway, except for KK mine. In TCL values for target hazard quotient (THQ), the As contaminants in soil did not exceed such TCL value. On the contrary, the As levels in ground water and polished rice in SD, NS, IA, and MB mines were also beyond the TCL values via ground water and rice intake. This study concluded that the health risks through ground water and rice intake were greater than those though soil inadvertent ingestion and dermal contact. In addition, it suggests that the abandoned mines to exceed the risk-based TCL values are carefully necessary to monitor for soil remediation.

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Section: Resultsmentioning

confidence: 92%

Assessment of health risk associated with arsenic exposure from soil, groundwater, polished rice for setting target cleanup level nearby abandoned mines

Lee¹,

Kim²,

Jeong³

et al. 2011

Korean Journal of Soil Science and Fertilizer

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“…Baseline levels of As are w10-fold higher than other cereal grains (Williams et al, 2007), with baseline levels of As i being of concern (Meharg et al, submitted for publication). This is greatly exacerbated by As contamination of rice production systems from a myriad of sources including irrigation with As-tainted groundwaters, mineral exploration and processing industries, and As pesticide use (Liu et al, 2005;Lee et al, 2008). For example, rice grown in elevated paddy soils of both Bangladesh and USA have arsenic levels wthreefold higher than baseline.…”

mentioning

confidence: 99%

Exposure to inorganic arsenic from rice: A global health issue?

Zhu

Williams

Meharg

2008

Environmental Pollution

359

170

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“…Os resultados apresentados são indicativos de que a exposição ao As nesse cenário de exposição apresenta possibilidade de causar risco à saúde dos moradores locais. Lee et al (2008), não levando em consideração a bioacessibilidade de As para o cálculo das DID do elemento, encontraram, em áreas próximas a uma mina abandonada na Coreia do Sul, QRs de 0,13, 0,85 e 7,82, tendo como tabela 4. Critérios utilizados para o desenvolvimento de um modelo conceitual de exposição das pessoas ao As, em um cenário residencial.…”

Section: Resultsunclassified

Avaliação de risco à saúde humana por contaminação natural de arsênio nas águas subterrâneas e nos solos da área urbana de Ouro Preto (MG)

Gonçalves

Lena

2013

Geol. USP, Sér. cient.

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Disponível on-line no endereço www.igc.usp.br/geologiausp -145 -Resumo Na avaliação da exposição humana à contaminação natural por arsênio (As) das águas subterrâneas e solos na área urbana da cidade de Ouro Preto, MG), nos bairros Piedade, Taquaral, Padre Faria, Alto da Cruz, Antônio Dias e Barra, foram estimados, para as crianças e adultos residentes nesses locais: (i) os valores das doses de ingestão diárias (DID) de As; (ii) os valores para os quocientes de risco (QRs) e (iii) o incremento da probabilidade de se desenvolver câncer ao longo da vida (RC), com teores médios de As encontrados nas águas subterrâneas, variando entre 10 e 77 µg.L -1 e, nos solos, de 332,75 e 656 mg.kg -1.Palavras-chave: Ouro Preto; Arsênio; Avaliação de risco; Solo contaminado; Água subterrânea. AbstractThis study was performed so as to make an assessment of human exposure to natural contamination by arsenic (As) in groundwaters and soils in the urban area of Ouro Preto, MG), Brazil, specifically in the Piedade, Taquaral, Padre Faria, Alto da Cruz, Antônio Dias, and Barra neighborhoods. In this study, the following items were estimated for the children and adult residents in these locations: (i) the values of daily ingested doses (DID) of As; (ii) the values for risk quotients (QRs) and (iii) the increase of the probability of developing cancer throughout life (RC), with mean content of As found in groundwaters varying from 10 to 77 µg.L -1 and, in the soils, from 332.75 to 656 mg.kg -1.

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Evaluation of human exposure to arsenic due to rice ingestion in the vicinity of abandoned Myungbong Au–Ag mine site, Korea

Cited by 81 publications

References 10 publications

Assessment of health risk associated with arsenic exposure from soil, groundwater, polished rice for setting target cleanup level nearby abandoned mines

Assessment of health risk associated with arsenic exposure from soil, groundwater, polished rice for setting target cleanup level nearby abandoned mines

Exposure to inorganic arsenic from rice: A global health issue?

Avaliação de risco à saúde humana por contaminação natural de arsênio nas águas subterrâneas e nos solos da área urbana de Ouro Preto (MG)

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