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이지호(Ji-Ho Lee),고우리(Woo-Ri Go),Anitha Kunhikrishnan,류지혁(Ji-Hyock Yoo),김지영(Ji-Young Kim),김원일(Won-Il Kim) 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.6
Heavy metal concentration as well as chemical composition were surveyed in commercial liquid pig manure to provide the basic information for mitigation research of hazardous material to agro-product. Seventy-five samples of liquid pig manure were collected and analyzed from 2009 to 2010 nationwide. Average contents of T-N, P₂O5, and K₂O were 0.29%, 0.08%, and 0.11%, respectively. The contents of heavy metals ranged from 0.001~0.083 for As, 0.001~0.108 for Cd, 0.002~0.495 for Cr, 0.07~47.8 for Cu, ND~0.005 for Hg, 0.035~1.033 for Ni, ND~0.291 for Pb, and 0.75~342.4 mg L<SUP>-1</SUP> for Zn, respectively. It was noted that among 75 samples, only four samples exceeded the Zn guideline (130 mg L<SUP>-1</SUP>) of liquid fertilizer derived from livestock manure but others were not exceeded the regulation.
연구보문 : 환경환경 ; 폐광지역에서 생산된 백미 중 비소오염도와 확률론적 기법을 이용한 인체 위해성 평가
이지호 ( Ji Ho Lee ),김원일 ( Won Il Kim ),정은정 ( Eun Jung Jeong ),류지혁 ( Ji Hyock Yoo ),김지영 ( Ji Young Kim ),백민경 ( Min Kyung Paik ),박병준 ( Byung Jun Park ),임건재 ( Geon Jae Im ),홍무기 ( Moo Ki Hong ) 한국환경농학회 2011 한국환경농학회지 Vol.30 No.1
BACKGROUND: This study was conducted to investigate the arsenic (As) contaminations in polished rice cultivated nearby abandoned mine areas, and to estimate the potential health risk through dietary intake of As-enriched polished rice in each age-gender population. METHODS AND RESULTS: The As contents in polished rice grown fifteen abandoned mine areas were analyzed. The average daily intake (ADD) as well as probabilistic health risk were estimated by assuming probability distribution of exposure parameters. The average total As concentration in polished rice was 0.09±0.06 mg/kg with a range of 0.02~0.35mg/kg. For health risk assessment, the ADD values in all age-gender populations did not exceed the provisional tolerable daily intake (PTDI) of 2.1?g/kg b.w./day for inorganic As. Cancer risk probability (R) values were 2.45~3.28×10-4 and 2.51~5.75×10-4 for all age population and gender population, respectively. Particularly, the R value, 5.75×10-4, for children less than six years old were estimated to be high. Hazard quotient (HQ) values were 0.23~0.31 and 0.11~0.33 for general population and age-gender population, respectively. CONCLUSION(s): The average R values assessed via intake of polished rice cultivated in abandoned mine areas exceeded the acceptable cancer risk of 10-6~10-4 for regulatory purpose. Considering the HQ values smaller than 1.0, potential non-cancer toxic effects may not be caused by the long-time exposure through intake of As-contaminated polished rice.