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- W2382771723 abstract "A laboratory experiment was conducted to evaluate the influence of accompanying anions on biotoxcity of lead in purple soils using D.carinata photo tactic index (Ip) test. Lead with different plumbous compounds was carried out, they were lead chloride (PbCl2), lead acetate (Pb(OAc)2) and plumbi nitras(Pb(NO 3)2) respectively. The Pb concentrations were 0, 1, 5, 10, 25, 50, 75 and 100 mg ·kg-1 in purple soils respectively. Extra experiments with the same concentr ations of anions were used for soil sampling to investigate the influence of acc ompanying anions. The results indicated that the Ip of Daphnia decreased with th e increasing of lead added to soil. The lower limit detection concentration (LLD C) of lead with different accompanying anions which result in significant change of 3 h-Ip were:lead chloride (50 mg·kg-1) lead acetate (25 mg·kg-1 ) plumbi nitras (10 mg·kg-1), respectively;The orders of toxicity in the case of lead at the same lead levels were: plumbi nitras lead acetate lead c hloride. Evaluate by the inhibition rates of Ip(RIp),the biotoxcity of plumbi nitras on D.carinata at 10 mg·kg-1(RIp=19.31%) was 2 and 30 times as that of the same concentrations of lead acetate (RIp=9.34%)and lead chloride (RIp=0 .64%) respectively, but similar to that of lead chloride at 50 mg·kg-1(RIp =19.14%). While, another experiment was carried out to argue the effect of ass ociated anions on biotoxicity of soil added with sodium among nitras, chloride a nd acetate. Its result demonstrated that the three accompanying anions have no s ignificant negative effect on soil solution biotoxicity at lower concentrations. Thus it can be seen that difference between available lead contents as the resu lts of different accompanying anions could be one of the factors determining the ir relative toxicity to soil biotoxicity." @default.
- W2382771723 created "2016-06-24" @default.
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- W2382771723 date "2004-01-01" @default.
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- W2382771723 title "Influence of Accompanying Anions on Relative Biotoxicity of Lead in Purple Soil" @default.
- W2382771723 hasPublicationYear "2004" @default.
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