Sandimirov S.S. Catalogue of lakes in the Russian, Finnish and Norwegian Border Area. Finland, Jyvaskyla: Kopijyva Oy, 2008.

Pb and Hg concentrations in muscular tissue occur in pike. The Hg concentrations in the muscle of pike and densely rakered whitefish are relatively similar (Fig. 56). Standard value (pg/g wet weight)* Concentration in muscle (pg/g wet weight) Concentration in muscle (pg/g of dry weight) Whitefish, sparely rakered Hg 0.5 0.07 0.32 Ni 0.5 0.15 0.71 Cu 20 0.16 0.77 Cd 0.1 - < 0.01 Pb 1 0.02 0.11 Whitefish, densely rakered Hg 0.5 0.13 0.68 Ni 0.5 0.12 0.64 Cu 20 0.08 0.40 Cd 0.1 0.002 0.01 Pb 1 0.02 0.08 Trout Hg 0.5 0.13 0.58 Ni 0.5 0.15 0.66 Cu 20 0.25 1.14 Cd 0.1 - < 0.01 Pb 1 0.02 0.05 Perch Hg 0.5 0.13 0.51 Ni 0.5 0.14 0.70 Cu 20 0.13 0.62 Cd 0.1 - 0.01 Pb 1 0.01 0.08 Pike Hg 0.5 0.15 0.73 Ni 0.5 0.15 0.76 Cu 20 0.18 0.88 Cd 0.1 0.002 0.01 Pb 1 0.04 0.18 Table 38. The standard values for heavy metal con­ centrations in foodstuffs and in fish muscle in Lake Stuorajavre (in цд/д wet and dry weight). hSource: Sanitary..., 1986. Cu in liver j C 220 . 2 * 200 5 180 d ' *o 160 CTl 140 =L 120 ЭU 100 О 80 с о 60 4U 20 aI и 0 о и -?0 Ni in kidneys s £- Catalogue ofLakes in the Russian, Finnish and Norwegian Border Area 107