TY - JOUR ID - 796 TI - Toxicity Effect of Oil Spill Dispersants on Litopenaeus Vannamei JO - International Journal of Environmental Research JA - IJER LA - en SN - 1735-6865 AU - Delshad, N. AU - Emtyazjoo, M. AU - Khezri, M. AD - Department of Environmental Science, faculty of environmental and energy, science and Research Branch, Islamic Azad University, Tehran, Iran AD - Department of Marine Biology, Islamic Azad University, Marine Science and Technology, North Tehran Branch, Tehran, Iran AD - Department of Environmental Engineering, Graduate Faculty of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran Y1 - 2014 PY - 2014 VL - 8 IS - 4 SP - 1027 EP - 1030 KW - Oil dispersant KW - toxicity KW - Crude oil KW - RET KW - Litopenaeus vannamei DO - 10.22059/ijer.2014.796 N2 - One of the most chemical methods for controlling of oil spills is use of dispersants, which arewidely being used worldwide. In this research, comparison of acute toxicity of crude oil of the Persian Gulf-Khark area (CO), Iranian Naftroob crude oil dispersant (IND), Radiagreen OSD dispersant crude oil (RD), themixture of crude oil and Iranian Naftroob dispersant ( CO-IND) and crude oil with Radiagreen OSD dispersant(CO-RD) was carried out. For this purpose, the concentrations of both dispersants were equal: 10.5, 21, 42,84 and 168 mg/L. The concentrations of 8.4+16, 16.8+336, 33.6+672, 67.2+1344 and 134.4+2688 mg/L wereused for dispersants-crude oil mixtures and the concentrations of 168, 336, 672, 1344 and 2688 mg/L wereused for crude oil alone. Litopenaeus vannamei was used for bioassay toxicity test. 48-h LC50 was estimatedby Probit value table. Relationship between efficiency and toxicity (RET) was also estimated. 48-h LC50 forCO, IND, RD, CO-IND and CO-RD were 1741, 17.21, 43.52, 631.456, 357.089 mg/L, respectively. Theresults were obtained by these tests were shown that CO alone is less toxic than the IND, RD and also COINDand CO-RD. Moreover, CO-IND was less toxic than CO-RD. With regard to the efficiency of IND hada lower (RET = 34.8) than RD (RET = 39) and so, it was more efficient. UR - https://ijer.ut.ac.ir/article_796.html L1 - https://ijer.ut.ac.ir/article_796_0a59c7c0d8cd807daf88963d0cbf377b.pdf ER -