PCB and PAH impacts on cytochrome P-450-dependent oxidases in roach (Rutilus rutilus) from the Seine River (France)

被引:16
作者
Blanchard, M [1 ]
Teil, AM [1 ]
Carru, AM [1 ]
Ollivon, D [1 ]
Garban, B [1 ]
Chesterikoff, A [1 ]
Chevreuil, M [1 ]
机构
[1] Univ Paris 06, Inst Hydrol & Climat, Lab Hydrol & Environm, F-75252 Paris 05, France
关键词
D O I
10.1007/s002449900511
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Roach were sampled in the Seine River along a gradient of polyaromatic hydrocarbon (PAH) conclusions at three stations: Marnay upstream of Paris and Epinay and Poses downstream of Paris. Two hepatic monooxygenase activities: EROD (ethoxyresorufine-O-deethylase) and AE (aldrin epoxydase) and muscle residues of PCBs and PAHs were investigated during three periods of the year (before spawning, during spawning, and postspawning). Before spawning, EROD and AE activities were significantly correlated with muscle PCB levels (p less than or equal to 0.05 for both activities) and with muscle PAH levels (p less than or equal to 0.05 for both activities) at the three stations. Cd was not inversely related to monooxygenase activities. During spawning, enzymatic activities remained low and were not correlated to pollutant levels. Postspawning EROD and AE activities were again significantly related to muscle PCBs (p less than or equal to 0.05 for both activities). Thus, investigations of EROD and AE activities may be considered as a reliable tool for biomonitoring of PCB or PAH exposure, as far as appropriate conditions are observed.
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页码:242 / 250
页数:9
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