徐勇,朱建新,江濤,劉文文.消油劑對海灣扇貝(Argopecten irradians)的急性毒性效應.漁業科學進展,2015,36(6):121-126 |
消油劑對海灣扇貝(Argopecten irradians)的急性毒性效應 |
The Acute Toxicity of Dispersant and Chemically Dispersed Oil on the Argopecten irradians |
投稿時間:2014-12-09 修訂日期:2015-09-10 |
DOI:10.11758/yykxjz.20150618 |
中文關鍵字: 海灣扇貝(A. irradians) 消油劑 0號柴油 急性毒性 |
英文關鍵字: Argopecten irradians Dispersant No.0 diesel oil Acute toxicity |
基金項目:國家海洋局海洋溢油鑒別與損害評估科技重點實驗室開放基金資助(201317) |
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摘要點擊次數: 10236 |
全文下載次數: 8870 |
中文摘要: |
本研究以海灣扇貝(Argopecten irradians)為研究對象,通過96 h半靜水毒性實驗,探討了消油劑、0號柴油分散液(WAF)與0號柴油乳化液(CEWAF)對海灣扇貝24 h、48 h、72 h、96 h急性毒性效應。結果顯示,消油劑對海灣扇貝的24 h、48 h、72 h和96 h半致死濃度(95%可信限)分別為1905(1570-2451 mg/L)、1293(1070-1556 mg/L)、1015(721-1348 mg/L)、846 mg/L(660-1020 mg/L);WAF對海灣扇貝的24 h、48 h、72 h和96 h半致死濃度(95%可信限)分別為36.57(29.42-48.96 mg/L)、23.10(21.07-25.39 mg/L)、14.99(13.66-16.41 mg/L)、11.31 mg/L(8.37-14.47 mg/L);CEWAF對海灣扇貝的24 h、48 h、72 h和96 h半致死濃度(95%可信限)分別為12.71(10.78-15.55 mg/L)、8.51(7.99-9.07 mg/L)、6.56(4.46-7.74 mg/L)、5.42 mg/L(4.51-6.29 mg/L)。消油劑、0號柴油分散液、0號柴油乳化液對海灣扇貝96 h安全濃度分別為84.6、1.13、0.54 mg/L。隨著實驗時間的延長,消油劑、WAF和CEWAF對海灣扇貝的半致死濃度(LC50)均呈逐漸降低之勢,半致死濃度與時間呈冪函數關係,其關係式分別為y=12242x–0.583、y=564.37x–0.848、y=89.987x–0.613。在受試溶液中暴露相同時間,海灣扇貝的半致死濃度從高到低依次為消油劑、WAF和CEWAF,說明CEWAF對海灣扇貝的毒性大於消油劑和WAF,這對於在養殖海區使用消油劑處理溢油事故具有重要的指導意義。 |
英文摘要: |
Chemical dispersant has rapidly gained popularity in controlling unwanted oil spill in the aquatic environment,however,it exerts adverse effects on the aquatic organisms.The acute toxicity of chemical dispersant on fish,algae and zooplanktons has been widely investigated in previous studies.In the contrast,the acute toxic effects on shellfish remains unclear.In this study,we examined the acute toxic effects of chemical dispersant,dispersed 0 diesel oil(WAF)and chemically dispersed 0 diesel(CEWAF)on A. irradians.The test was performed within 96h,and the concentrations of chemical dispersant,WAF and CEWAF ranged from 0.50-3.00,5.88-58.80 and 3.54-20.00 mg/L respectively.The LC50 values(within 95% confidence intervals)of dispersant in A. irradians were 1905,1293,1015 and 846 mg/L in the time courses of 24 h,48 h,72 h and 96 h respectively.The LC50 values of WAF were 36.57,23.10,14.99 and 11.31 mg/L corresponding to different time courses,and the values of CEWAF were 12.71,8.51,6.56 and 5.42mg/L respectively.As the time course increased from 24 h to 96 h,the median lethal concentrations(LC50)of chemical dispersant,WAF and CEWAF were decreased accordingly.The median lethal concentration and time course appeared to be highly correlated.The functions of LC50(y)of dispersant,WAF and CEWAF against time(x)were y=12242x-0.583,y=564.37x-0.848,and y=89.987x-0.613 respectively.For the same exposure time,the order of the median lethal concentrations was dispersant > WAF > CEWAF,suggesting that the acute toxicity of CEWAF on A. irradians was higher than dispersant and WAF. |
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