Table of Contents 1 68

Sandimirov S. Screening studies of POP levels in fish from selected lakes in the Paz watercourse / In State of the environment in the Norwegian, Finnish and Russian border area. The Finnish Environment. Finland, Jyvaskyla: Kopijyva Oy. 2007, №6.

Table of Content	5
1. Introduction	6
2. Study area and sampling locations	7
3 Sampling procedure	8
4. Analyses	9
4.1. Analysed material	9
4.2. Contaminant analyses	10
4.3. Biochemical biomarker analyses	11
5 Results and discussion	11
5.1 Legacy POP levels	11
5.1.1. Organochlorines	11
5.1.2. Polychlorinated biphenyl (PCBs) levels	16
5.2 New environmental contaminants	17
5.3. Polycyclic aromatic hydrocarbon (PAHs) levels	22
6 Effect of contaminants: Biomarker studies	24
6.1. Cytochrome P-450 hydroxylase activity	24
6.2. Bile acids in fish bile	26
7 Conclusions/recommendations	29
8 Acknowledgements	29
9 References	30
Appendix 1	34
Appendix 2	55
Appendix 3.	57

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