摘要
采用水生污染暴露试验和水生毒理联合效应相加指数法,研究了四氯乙烯(PCE)和对二氯苯(P-DCB)对草鱼(Ctenopharyngodon idellus)的单一毒性与联合毒性.结果表明,PCE和P-DCB的单一毒性均为高毒,且P-DCB的毒性大于PCE.PCE和P-DCB对草鱼的联合染毒在浓度1:1时,暴露时间为24,48,72,96h的相加指数(AI)分别为0.26,0.37,0.78,0.98,联合毒性为相加作用.PCE与P-DCB对草鱼的联合染毒在毒性1:1时,暴露时间为24,48,72,96h的AI分别为-0.15,0.24,0.83,1.30,联合毒性主要是相加作用,但是随着染毒时间的延长,联合毒性由相加作用向协同作用转变.
The single and joint toxicity of perchloroethylene （PCE） and 1,4-dichlorobenze （P-DCB） acting on grass carp （Ctenopharyngodon idellus） was studied adopting the additive index method of the aquatic pollution-exposure experiment combined with joint effects of aquatic toxicology. The single toxicities of PCE and P-DCB were all high toxicity, and the toxicity of P-DCB was greater than that of PCE, and the joint toxipolluting of PCE and P-DCB on grass carp at concentration 1：1, the addition index （AI） of expose time 24,48, 72 and 96h, were 0.26, 0.37, 0.78, and 0.98, respectively, the joint toxicity was addition action, at toxicity of 1：1, AI of expose time 24, 48, 72, 96h were -0.15, 0.24, 0,83, and 1.30, respectively. The joint toxicity was mainly addition action, but changed from addition action to synergistic action with toxipollution time prolonging.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2007年第3期387-390,共4页
China Environmental Science
基金
国家'973'项目(2004CB418503)
国家自然科学基金资助项目(20337010)
