Pentachlorophenol Sodium Salt, Potassium Dichromate, Sodium Azide에 대한 새뱅이(Neocaridina denticulata) 급성독성

• Published in: 환경독성보건학회지 Vol. 25; no. 3; pp. 223 - 228
• Main Authors: 이재우, 문예련, 윤준헌, 최경희, 한진석, 류지성, Lee, Jae-Woo, Moon, Ye-Ryeon, Yoon, Jun-Heon, Choi, Kyung-Hee, Han, Jin-Seok, Ryu, Ji-Sung
• Format: Journal Article
• Language: Korean
• Published: 환경독성보건학회 01.09.2010
• Subjects: 기타의약학; Neocaridina denticulata; Freshwater shrimp; Acute toxicity
• ISSN: 2093-6400

Neocaridina denticulata is a small freshwater shrimp indigenous to Korea. As an indigenous species has long-adapted to particular water environments, the species can be a suitable indicator to assess environmental risks caused by hazard chemicals in the particular site. Thus Neocaridina denticulata, a small freshwater shrimp indigenous to Korea, is worth considering for a test species for such purpose. N. denticulata were exposed to pentachlorophenol sodium salt, sodium azide and potassium dichromate using automatic flow-through system for 96 hours. The 96 hr lethal concentrations ($LC_{50}$) of these chemicals were calculated as $0.53{\pm}0.09\;mg/L$, $2.40{\pm}0.61\;mg/L$ and $1.21{\pm}0.09\;mg/L$ respectively and showed relatively small deviation from repetitive test results. When compared with the toxicity values of other species for each chemical, N. denticulata had moderate or high sensitivity to the toxicity of these chemicals. It can be concluded that N. denticulata is a good test species to evaluate acute toxicity of various hazardous chemicals.