한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제12권5호
  • /
  • Pages.555-566
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  • 1996
  • /
  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
권호 표지

PM-10 내 중금속의 장기간 평균농도 및 위해도 평가

An Assessment of the Long-Term Concentration of Heavy Metals and Associated Risk in Ambient PM-10

  • 이혜문 (한국기계연구원 시험평가부) ;
  • 김동술 (경희대학교 환경학과 대기오염연구실) ;
  • 이진홍 (충남대학교 환경공학과)
  • 발행 : 1996.12.01
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초록

In order to assess the long-term airborne concentrations of 6 metals such as Cr, Cd, Pb, Zn, K, and Na and the associated health resk, a great number of PM-10 samples were collected and analyzed in Kyung Hee University-Suwon Campus for three years from 1991 to 1993. The 3-year average concentration of Pb in respirable particulate matters was 142.6 ng/m$^{3}$ while that of Zn was 1,210.5ng/m$^{3}$. The corresponding hazard index from Pb Zn for the ingalation route was estimated to be 9.5.times.10$^{-2}$ and 3.5.times.10$^{-2}$ , respectively. Therefore, it can be said that there was no adverse chronic health effects by airborne Pb and Zn. However, the 2-year average concentration of Cr(6) was estimated to be 1.3ng/m$^{3}$ shile the 3-year average concentration of Cd was 3.1ng/m$^{3}$. The total cancer risk by these two metals for the inhalation route was estimated to be about 7.2.times.10$^{-6}$ . This order-of-magnitude risk estimate suggests that the ingalation risk in the study area from all carcinogenic metals including As and Ni (subsulfide) might exceed the acceptable risk criteria of 10$^{-5}$ -10$^{-6}$ by U.S.EPA.For a better risk assessment in the future, alveolar deposition of PM-10 in the study area were also discussed and an assessment was done.

키워드

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