인구집단 위해도 평가 방법을 활용한 유해화학물질 배경 노출 영향 보정 방법 개발 -울산공단주변을 대상으로-
Development of Background Exposure Effect of Harmful Pollutants Using Population Risk Assessment in Ulsan
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초록
Objective: The objective of this study was to propose a method using population risk to assess the local background exposure effect of harmful pollutants from chemical accidents in Ulsan. Methods: The benzene was selected as representative harmful pollutant. The concentrations of benzene were measured and analyzed at 40 sites in Ulsan city in September, 2018. The data from National Statistics office in Korea were used for population density, and the Integrated Risk Information System (IRIS) data from US EPA were used for unit risk. Results: The risk assessment can be carried out by considering the background population risk. The background population risk was calculated as 5.01 persons per million for exposure to benzene in Ulsan, and therefore may be used as a adjusted background method in case of chemical accident caused by benzene. Conclusions: This study may provide the evidence that background exposure effect and risk to harmful pollutants from chemical accidents would be useful.
Abstract
Objective: The objective of this study was to propose a method using population risk to assess the local background exposure effect of harmful pollutants from chemical accidents in Ulsan. Methods: The benzene was selected as representative harmful pollutant. The concentrations of benzene were measured and analyzed at 40 sites in Ulsan city in September, 2018. The data from National Statistics office in Korea were used for population density, and the Integrated Risk Information System (IRIS) data from US EPA were used for unit risk. Results: The risk assessment can be carried out by considering the background population risk. The background population risk was calculated as 5.01 persons per million for exposure to benzene in Ulsan, and therefore may be used as a adjusted background method in case of chemical accident caused by benzene. Conclusions: This study may provide the evidence that background exposure effect and risk to harmful pollutants from chemical accidents would be useful.
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