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http://dx.doi.org/10.4491/KSEE.2013.35.3.165

Initial Ecological Risk Assessment of 1,2-Benzisothiazol-3-one in Environment  

Han, Hye-Jin (Risk Assessment Division, National Institute of Environmental Research)
Kim, EunJu (Risk Assessment Division, National Institute of Environmental Research)
Yoo, SunKyoung (Risk Assessment Division, National Institute of Environmental Research)
Ro, Hi-Young (Risk Assessment Division, National Institute of Environmental Research)
Baek, Yong-Wook (Risk Assessment Division, National Institute of Environmental Research)
Shim, IlSeob (Risk Assessment Division, National Institute of Environmental Research)
Eom, Ig-Chun (Risk Assessment Division, National Institute of Environmental Research)
Kim, Hyun-Mi (Risk Assessment Division, National Institute of Environmental Research)
Kim, PilJe (Risk Assessment Division, National Institute of Environmental Research)
Choi, Kyunghee (Risk Assessment Division, National Institute of Environmental Research)
Publication Information
Journal of Korean Society of Environmental Engineers / v.35, no.3, 2013 , pp. 165-170 More about this Journal
Abstract
In this study, physico-chemical properties and environmental fate were investigated and ecotoxicity tests using fish, daphnia and algae were conducted for an initial ecological risk assessment of 1,2-Benzisothiazol-3-one. Due to low volatility of the test substance under environmental conditions, it is likely to distributed in soil and water environment. The compound has low adsorption in the soil, with low bioconcentration potential. Acute toxicity results showed that 96 h-$LC_{50}$ for Oryzias laties was 4.7 mg/L (measured) and 48h-$EC_{50}$ for Daphnia magna was 3.3 mg/L (measured). In a growth inhibition test with Pseudokirchneriella subcapitata, 72 h-$EC_{50}$ was 0.456 mg/L (growth rate, nominal) and 0.262 mg/L (yield, nominal). Using the acute toxicity value of algae, predicted no-effect concentration (PNEC) in the aquatic environment was determined to be 2.62 ${\mu}g/L$ using an factor of 100. According to globally harmonized system (GHS), the compound was categorized as aquatic acute 1 for algae, while it was categorized as aquatic acute 2 for fish and daphnia. This screening assessment suggests that the test substance may pose ecological risks in the aquatic environment.
Keywords
Ecological Risk Assessment; 1,2-benzisothiazol-3-one;
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