폐금속광산 하류 논토양의 중금속에 대한 인체흡수도 평가
Assessment of Human Bioavailability Quotient for the Heavy Metal in Paddy Soils Below Part of the Closed Metalliferous Mine
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
BACKGROUND: For the heavy metal cotamination sites, it is very important to estimate the human bioavailability quotients for heavy metals in paddy soils released from mine tailings, which is a major source of contamination in Korea, and to assess the human health risks of heavy metals. METHODS AND RESULTS: This experiment was carried out to investigate the human bioavailability quotient of the heavy metals in paddy soils below part of the closed metalliferous mine. For estimating the human bioavailability quotients for heavy metals, 30 paddy soils below part of the closed mine were collected, and analyzed for Cd, Cu, Pb, Zn, and As using simple bioavailability extraction test(SBET). The quantities of Cd, Cu, Pb, Zn and As extracted from paddy soils below part of the mine by using the SBET analysis were 28.1, 17.3, 34.1, 14.6 and 2.3% respectively. Specially, the maximum values of Cd, Pb and Zn were 73.3, 81.5 and 58.1% of human bioavailability quotient, respectively, and varied considerably among the sampling sites. The human bioavailability quotient of Cd, Cu, Pb and Zn in soils near the closed mine showed significant positive correlation among soil pH value, O.M. and Ex. Ca. contents, while it correlated negatively between soil Ex. K and Ex. Mg contents in paddy soils. Also, its of Cd, Cu, Pb and Zn in paddy soils showed significant positive correlation with 0.1M HCl extractable and total contents, while in soils, it correlated negatively with As content in soil near the closed mine. CONCLUSION: The results of the simple bioavailability extraction test (SBET) indicate that regular ingestion of soils by the local population could be closed a potential health threat due to long-term heavy metals exposure in these mine areas.
Abstract
BACKGROUND: For the heavy metal cotamination sites, it is very important to estimate the human bioavailability quotients for heavy metals in paddy soils released from mine tailings, which is a major source of contamination in Korea, and to assess the human health risks of heavy metals. METHODS AND RESULTS: This experiment was carried out to investigate the human bioavailability quotient of the heavy metals in paddy soils below part of the closed metalliferous mine. For estimating the human bioavailability quotients for heavy metals, 30 paddy soils below part of the closed mine were collected, and analyzed for Cd, Cu, Pb, Zn, and As using simple bioavailability extraction test(SBET). The quantities of Cd, Cu, Pb, Zn and As extracted from paddy soils below part of the mine by using the SBET analysis were 28.1, 17.3, 34.1, 14.6 and 2.3% respectively. Specially, the maximum values of Cd, Pb and Zn were 73.3, 81.5 and 58.1% of human bioavailability quotient, respectively, and varied considerably among the sampling sites. The human bioavailability quotient of Cd, Cu, Pb and Zn in soils near the closed mine showed significant positive correlation among soil pH value, O.M. and Ex. Ca. contents, while it correlated negatively between soil Ex. K and Ex. Mg contents in paddy soils. Also, its of Cd, Cu, Pb and Zn in paddy soils showed significant positive correlation with 0.1M HCl extractable and total contents, while in soils, it correlated negatively with As content in soil near the closed mine. CONCLUSION: The results of the simple bioavailability extraction test (SBET) indicate that regular ingestion of soils by the local population could be closed a potential health threat due to long-term heavy metals exposure in these mine areas.
참고문헌 (18)
- Ettler, V, "Differences in the bioaccessibility of metals", metalloids in soils from mining and smelting areas(Copperbelt, Zambia), 2012, pp.113, 68~75
- Hwang, E. H, "A study on the heavy metal contamination of paddy soil in the vicinity of the Seosung Pb-Zn mine", Korean Society of Soil and Groundwater Environment, 5(2), pp.67~85 (2000)
- Kim, J. Y, "Assessment of As and heavy metal contamination in the vicinity of Duckum Au-Ag mine, Korea", Environmental Geochemistry and Health, 24(3), pp.213~225 (2002)
- 정구복, "삼보광산 수계 하천수질 및 퇴적토의 오염도 평가", 한국환경농학회지, 31(2), pp.122~128 (2012), 한국환경농학회[DOI]
- 정구복, "삼보광산 하류 수계의 계절별 수질변화와 오염도 평가", 한국환경농학회지, 27(4), pp.328~336 (2008), 한국환경농학회
- 정명채, "국내 휴", 폐광 금속광산 주변의 중금속 환경오염 평가, 2004, pp.37(1), 21~33[DOI]
- 이진수, "금속광산지역 독성 중금속원소들의 인체 위해성 평가", 자원환경지질, 37(1), pp.73~86 (2004), 대한자원환경지질학회
- Lee, J. S, "Environmental Contamination and Bioavailability of Toxic Element around the Daduk Mine Area, Korea", Economic and Environmental Geology, 33(4), pp.273~282 (2000)
- 이성은, "도곡(Au-Ag-Cu)광산 주변지역의 중금속 원소들의 환경오염특성 및 생체흡수도 평가", 자원환경지질, 38(2), pp.135~142 (2005), 대한자원환경지질학회
- Lee, S. W, "Human risk assessment for heavy metals and as contamination in the abandoned metal mine areas, Korea", Environmental Monitoring and Assessment, 119(1-3), pp.233~244 (2006)
- Luo, X. S, "Incorporating bioaccessibility into human health risk assessments of heavy metals in urban park soils", Science of the Total Environment, 424, pp.88~96 (2012)
- Luo, X. S, "The mobility, bioavailability, and human bioaccessibility of trace metals in urban soils of Hong Kong", Applied Geochemistry, 27(5), pp.995~1004 (2012)
- Poggio, L, "Metals pollution and human bioaccessibility of topsoils in Grugliasco(Italy)", Environmental Pollution, 157(2), pp.680~689 (2009)
- 김경웅, "Lead (Pb) Contamination of a Historical Mining and Smelting Site in Europe: Fractionation and Human Bioavailability", Geosystem Engineering, 13(1), pp.21~24 (2010), 한국자원공학회
- Ruby, M. V, "Development of an in vitro screening test to evaluate the in vitro bioaccessibility of ingested mine-waste lead. Environmental", Science & Technology, 27(13), pp.2870~2877 (1993)
- Ruby, M. V, "Estimation of lead and arsenic bioavailability using a physiologically based extraction test. Environmental", Science & Technology, 30(2), pp.422~430 (1996)
- Ruby, M. V, "Advances in evaluating the oral bioavailability of inorganic in soils for use in human health risk assessment. Environmental", Science & Technology, 33(21), pp.3697~3705 (1999)
- Wang, X. S, "Leaching characteristics of arsenic and heavy metals in urban roadside soils using a simple bioavailability extraction test", Environmental Monitoring and Assessment, 129(1-3), pp.221~226 (2007)