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测定0~#船用轻质柴油和船用重质燃料油96h内对幼海胆的急性毒性效应.两种石油烃在低质量浓度时对幼海胆产生有利的刺激作用,高质量浓度时对幼海胆产生毒害作用.通过几率单位法对数据处理得出0~#船用轻质柴油和船用重质燃料油96h的LC_(50)分别为11.4 mg/L和17.5mg/L,安全质量浓度分别为0.11 mg/L,0.18 mg/L.结果表明,0~#船用轻质柴油对幼海胆的毒性大于船用重质燃料油.
The acute toxic effects of 0 ~ # marine light diesel oil and marine heavy fuel oil on young sea urchins during 96 hours were determined.The two kinds of petroleum hydrocarbons had a favorable stimulating effect on young sea urchins at low concentration and the young sea urchin Poisoning effect. The data of 0 ~ # ship light diesel oil and marine heavy fuel oil were obtained by probability unit method and the LC 50 value of 11 h was 17.5 mg / L and 11.4 mg / L, respectively, and the safe mass concentrations were 0.11 mg /L, 0.18 mg / L. The results showed that 0 ~ # marine light diesel has more toxicity to young sea urchins than marine heavy fuel oil.