| Human Exposure of Hazardous Substances from Recycled Activated Charcoal of Waste Wood |
| 폐목재 재활용 성형탄으로 부터 유해물질의 인체노출 |
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김우일, 조윤아, 이동진, 신선경, 오길종 |
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국립환경과학원 |
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| Abstract |
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The increasing use of recycling products results in the need for assessing the risk to human health. At this research institute, a risk assessment has been carried out in order to investigate the effect of combusting commonly used activated charcoal in barbecue restaurants on the human respiratory organ. In more detail, 13domestically distributed activated charcoals from recycled waste wood have been analyzed for following substances:eight heavy metals (As, Cd, Cr, Cu, Hg, Pb, Sb, Se), two aldehydes (acetaldehyde, formaldehyde), and four VOCs (benzene, toluene, ethylbenzene, xylene). An exposure algorithm has been developed to calculate the human risk for a closed tent (2×2×2 m) and a place equipped with a ventilation system. Prior to this, samples were collected from the indoor air of a closed tent and from the place with a ventilation system and its surroundings. The human risk, expressed as hazard quotient (HQ), for Cadmium and Benzene has been calculated to be higher than 1 for the closed tent. However, since the previous scenario was limited to a closed tent, the risk assessment was also conducted at a place provided with a ventilation system. The results show that the exposure was low (0.00002~0.01%). Hence, if facilities are equipped with ventilation, there will not be any harm to the human respiratory system by combusting charcoal indoors. |
| Key Words:
recycling, assessment, charcoal, exposure, human |
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