LAS degradation rate in Donghu Lake water under aerobic was much faster than under anaerobic condition . The half life of LAS in aerobic and anaerobic environment was 3.2 days and 57 days, respectively . The degradati...LAS degradation rate in Donghu Lake water under aerobic was much faster than under anaerobic condition . The half life of LAS in aerobic and anaerobic environment was 3.2 days and 57 days, respectively . The degradation rate at 25-27℃was approximately 20 times higher than that at 1.5-3.5℃.In a laboratory model aquatic ecosystem, two stages of bioconcentration in fish , daphnia and snail were observed . The first stage , on second day exposure , resulted from accumulation of intact LAS , and the second stage , on 16th day exposure , was due to metabolites . The bioconcentration factor (BCF) of LAS was extremely low in the muscle of hybrid carp (0.64), but rather high (2485) in the gall bladder .展开更多
基金This cooperation project between the Institute of Hydrobiology,Acadcmia Sinica,Wuhan,P.R. China and Institut fur Okologische Chemic der Gesellschafi fur Strahlen und Umweltforschung,F.R.Germany.was supported by the Natural Science Foundation P.R.China an
文摘LAS degradation rate in Donghu Lake water under aerobic was much faster than under anaerobic condition . The half life of LAS in aerobic and anaerobic environment was 3.2 days and 57 days, respectively . The degradation rate at 25-27℃was approximately 20 times higher than that at 1.5-3.5℃.In a laboratory model aquatic ecosystem, two stages of bioconcentration in fish , daphnia and snail were observed . The first stage , on second day exposure , resulted from accumulation of intact LAS , and the second stage , on 16th day exposure , was due to metabolites . The bioconcentration factor (BCF) of LAS was extremely low in the muscle of hybrid carp (0.64), but rather high (2485) in the gall bladder .
