Risk Assessment of Arsenic in Agricultural Products

Abstract

The present study was carried out to assess exposure & risk for Korean by total and inorganic As intake through agricultural products. Total arsenic analysis was performed using microwave device and ICP-MS. 50% MeOH extraction and anion-exchange HPLC-ICP-MS method has been used to determine arsenic species. 329 samples covering 20 kinds of agricultural products were collected from various retail outlets and markets across Korea. The concentration of total As was in the range of 0.001~0.718 mg/kg, while inorganic and organic arsenic species in all samples was not determined. For risk assessment, probable daily intake was calculated and compared with provisional tolerable weekly intake (PTWI, 15 µg/kg b.w./week for inorganic arsenic) established by JECFA. The median daily exposure to total and inorganic As by intake of agricultural products except rice was ranged 0.0002~0.012, 0.0001~0.001 µg/kg b.w./day, corresponding to 0.01~0.5%, 0.002~0.1% of PTWI, respectively. The median level of total and inorganic As intake through rice was 0.603 and 0.041 µg/kg b.w./day, and 28.1% and 1.9% of PTWI, respectively. Therefore, the level of overall exposure to arsenic for Korean through agricultural products was below the recommended JECFA levels, indicating of least possibility of risk.

A Study on Mineralogical Characterizations of Sangdong Mine Tailings

“…현재 가행되고 있는 금속광산 및 폐 금속광산에서 선 광처리 후 잔류물인 광물찌꺼기는 중금속이 다량 함유되 어 있는데, 이러한 중금속이 환경에 노출되면 중금속들 은 먹이연쇄를 따라 생물권에 순환하면서 최종 포식자인 인간에게 큰 악영향을 미치기 때문에 중금속에 의한 환 경 및 인간에게 큰 위협의 대상이 되고 있다 (Choi et al, 2010). 상동광산은 1916년 광업권이 등록된 후 1994년 까지 세계 최대의 중석광산으로 개발되어졌다.…”

Feasibility of quantitative inorganic arsenic speciation at the parts-per-trillion level using solid phase extraction and femtosecond laser ablation inductively coupled plasma mass spectrometry

“…The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has shown a large fluctuation in inorganic arsenic content in a sample, and there is still insufficient verification of the analysis method. It was decided that these problems should be improved (Yang et al 2016;Choi et al 2010). The solid phase extraction (SPE) method has been considered as an alternative to simplify the separation process.…”

Identification of a Proper Phytoavailable Arsenic Extraction Method Associated with Arsenic Concentration in Edible Part of three Crops in Soils Near Abandoned Mining Areas

“…우리나라에서는 현재 다수의 폐광산 주변지역에 대한 토양 위해성 평가를 수행하여, 많은 지역이 농경지로 사용하 기에 부적합하며, 인체에 위해성이 있음을 보고하고 있다 (Choi et al, 2010;Kim et al, 2009b;Lim et al, 2008;Park et al, 2011). (Adriano, 1986;Kim et al, 2011;Lee et al, 2012;Nicholson et al, 1997 (Heemsbergen et al, 2009;Kim et al, 2009a;Naidu et al, 2003b;Salazar et al, 2012 침출 (Bermond et al, 1998;Hammer and Keller, 2002;Jackson and Alloway, 1991), , 1995;McLaughlin et al, 1999;Nolan et al, 2005) 등 다양 한 방법이 있다.…”