국내 폐금속 광산지역에서의 토양, 지하수, 쌀의 중금속 노출에 따른인체 위해성평가
Risk Assessment for Heavy Metals in Soil, Ground Water, Rice Grain nearby Abandoned Mine Areas
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초록
BACKGROUND: The objectives of this study are toinvestigate the contamination levels of heavy metals in soil,ground water, and agricultural product near the abandonedBoeun and Sanggok mine areas in Korea and to assess thehealth risk for these local residents exposed to the toxicheavy metals based on analytical data. METHODS AND RESULTS: By the results of humanhealth risk assessment for local residents around Boeun andSanggok, human exposure to cadmium, copper, arsenicfrom soil and to lead, cadmium, and arsenic from rice grainwere higher in Sanggok, but human exposure to zinc andarsenic from ground water was higher in Boeun. By theresults of hazard index (HI) evaluation for arsenic,cadmium, copper, lead, and zinc, HI values in both areaswere higher than 1.0. This result indicated that the toxicityhazard through the continuous exposure to lead, cadmium,arsenic from rice, ground water, and soil would be likely tooccur to the residents in the areas. Cancer risk assessmentfor arsenic, risks from the rice were exposed to one to twoout of 10,000 people in Boeun and one of 1,000 people inSanggok. These results showed that the cancer risks ofarsenic in both areas were 10~100 times greater than theacceptable cancer risk range of US EPA (1×10-6~1×10-5). CONCLUSION(S): Therefore, if these two local residentsconsume continuously with arsenic contaminated soil,ground water, and rice, the adverse health effects(carcinogenic potential) would be more increased.
Abstract
BACKGROUND: The objectives of this study are toinvestigate the contamination levels of heavy metals in soil,ground water, and agricultural product near the abandonedBoeun and Sanggok mine areas in Korea and to assess thehealth risk for these local residents exposed to the toxicheavy metals based on analytical data. METHODS AND RESULTS: By the results of humanhealth risk assessment for local residents around Boeun andSanggok, human exposure to cadmium, copper, arsenicfrom soil and to lead, cadmium, and arsenic from rice grainwere higher in Sanggok, but human exposure to zinc andarsenic from ground water was higher in Boeun. By theresults of hazard index (HI) evaluation for arsenic,cadmium, copper, lead, and zinc, HI values in both areaswere higher than 1.0. This result indicated that the toxicityhazard through the continuous exposure to lead, cadmium,arsenic from rice, ground water, and soil would be likely tooccur to the residents in the areas. Cancer risk assessmentfor arsenic, risks from the rice were exposed to one to twoout of 10,000 people in Boeun and one of 1,000 people inSanggok. These results showed that the cancer risks ofarsenic in both areas were 10~100 times greater than theacceptable cancer risk range of US EPA (1×10-6~1×10-5). CONCLUSION(S): Therefore, if these two local residentsconsume continuously with arsenic contaminated soil,ground water, and rice, the adverse health effects(carcinogenic potential) would be more increased.
참고문헌 (17)
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