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http://dx.doi.org/10.14249/eia.2022.31.5.321

Human Health Risk Assessment of BTEX from Daesan Petrochemical Industrial Complex  

Lee, Jihyeong (Department of Environment Engineering, Chungnam National University)
Jang, Yong-Chul (Department of Environment Engineering, Chungnam National University)
Cheon, Kwangsoo (Ministry of Environment)
Kim, Bora (Ministry of Environment)
Publication Information
Journal of Environmental Impact Assessment / v.31, no.5, 2022 , pp. 321-333 More about this Journal
Abstract
In this study, the concentration and distribution characteristics of BTEX (benzene toluene, ethylbenzene, and xylene) emitted from Daesan Petrochemical Industrial Complex were examined to determine their potential hazards to local residents. Residents living nearby the complex areas may be exposed to the chemicals through various media (air, water, and soil), especially by air. This study evaluated human health risks by inhalation using both deterministic and probabilistic risk assessment approaches. As a result of the deterministic risk assessment, the non-cancer risk was much lower than the regulation limit of hazard index (HI 1.0) for all the points. However, in case of cancer risk evaluation, it was found that the risk of excess cancer for benzene at point A located in the industrial complex was 2.28×10-6, which slightly exceeded the standard regulatory limit of 1.0×10-6. In addition, the probabilistic risk assessment revealed that the percentile exceeding the standard of 1.0×10-6was found to be 45.3%. The sensitivity analysis showed that exposure time (ET) had the greatest impact on the results. Based on the risk assessment study, it implied that ethylbenzene, toluene, and xylene had little adverse effects on potential human exposure, but benzene often exceeded the cancer risk standard (1.0×10-6). Further studies on extensive VOCs monitoring are needed to evaluate the potential risks of industrial complex areas.
Keywords
BTEX; Petrochemical Industrial complex; Deterministic Risk Assessment; Probabilistic Risk Assessment;
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