The identification, health risks and olfactory effects assessment of VOCs released from the wastewater storage tank in a pesticide plant.
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| Abstract |
Wastewater generated during pesticide synthesis is a potential source of high concentrations of volatile organic compounds (VOCs) emissions, which would cause adverse effects on human health and the environment. Here, we provided a comprehensive study on concentrations, health risks, and olfactory effects of VOCs emitted from a pesticide wastewater storage tank. A total of 21 VOCs were identified, their concentrations ranged from 0.63 to 5023.83 μg/m3. Chlorinated compounds such as trichloroethylene (mean = 2581.29 μg/m3) and dichloromethane (mean = 2309.55 μg/m3) presented the highest concentrations. Both the cumulative chronic toxicities (514) and cancer risks (1.67 × 10-3) of VOCs were up to three orders of magnitude higher than the occupational safety limits. Trichloroethylene contributed the greatest to the cumulative chronic toxicities (88.41%) and cancer risks (74.91%). Benzene was another compound with a high cancer risk of 3.32 × 10-4. Regarding olfactory effects, triethylamine and diethylamine were the dominant contributors with a relative olfactory perception importance of 39.93% and 34.26%, respectively. The results of fuzzy synthetic evaluation revealed that benzene, diethylamine, trichloroethylene, dichloromethane, and triethylamine were the priority compounds caused the overall pollution levels, health risks, and olfactory effects.
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| Authors | Kaixiong Yang, Chen Wang, Song Xue, Wenkai Li, Junxin Liu, Lin Li |
| Journal | Ecotoxicology and environmental safety (Ecotoxicol Environ Saf) Vol. 184 Pg. 109665 (Nov 30 2019) ISSN: 1090-2414 [Electronic] Netherlands |
| PMID | 31520952 (Publication Type: Journal Article) |
| Copyright | Copyright © 2019 Elsevier Inc. All rights reserved. |
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