Author:
Kim Soo-Yeon,Park Seong-Hwan,Kim Dae-Wook,Noh Won,Lee Sang-Jun,Jeong Hee-Jin,Park Jong-Bin,Gwak Yeong-Ji,Park Jin-Woo,Yeom Dong-Hyuk
Abstract
In this study, an artificial stream mesocosm consisting of a head tank, faster-flowing riffle section, gravel section, pool section, lower-run section, and tail tank was installed to simulate a chemical spill in a river. The responses of freshwater periphyton algae, crustacea (Moina macrocopa), freshwater worm (Limnodrilus hoffmeisteri), benthic midge (Glyptotendipes tokunagai), and fish (Zacco platypus and Aphyocypris chinensis) were observed after exposure to benzyl chloride (classified as an accident preparedness substance, APS) at concentrations of 1, 2, and 4 µL/L for 22.5 h. Higher concentrations increased the inhibition (photosynthetic efficiency decrease) of periphyton algae and the mortality of M. macrocopa, whereas the reproduction of the female cladoceran decreased in the 4 µL/L treatment. Mortality of fish did not occur or was lower (≤20%) at all concentrations; however, toxic symptoms were observed for some time after chemical exposure termination and later, symptoms receded. G. tokunagai mortality increased at all concentrations except the control after seven days, and no significant toxic effects were observed in L. hoffmeisteri. The hazardous concentration of benzyl chloride was calculated as 94 µg/L. This study showed the different sensitivities of each species to benzyl chloride. The findings can assist in environmental risk assessment of APSs after chemical spills to protect Korean aquatic species.
Funder
Korea Ministry of Environment
Subject
Chemical Health and Safety,Health, Toxicology and Mutagenesis,Toxicology
Reference50 articles.
1. HIS Markit, Chemical Economics Handbook, Benzyl Chloridehttps://ihsmarkit.com/products/benzyl-chloride-chemical-economics-handbook.html
2. Development of Accident Probability Index Using Surrogate Indicators of Chemical Accidents in Chemical Plants
3. FACTS Hazardous Materials Accidents Knowledge Basehttp://www.factsonline.nl/accidents/%205405/91738_BENZYL%20CHLORIDE/chemical-accidents-with-benzyl-chloride
4. Case Analysis of the Harmful Chemical Substances' Spill
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献