Airborne contamination by heavy metals and aluminum in the freshwater ecosystems of the Kola subarctic region (Russia) / Moiseenko T. I., Kudryavtseva L. P., Rodyushkin I. V. [et al.] // The Science of the Total Environment. - 1995. - Т. 160/161. - С. 715-727.

720 T.I. Moiseenkoetal / Set. Total Environ. 160/161 (1995) 715-727 Table 2 Metal concentration (C, ju.g/1) changes in water during flooding and coefficient values (Y) for each speciation® Species Stream 1 20 km northeast of Pechenganikel Stream 2 30 km southwest of Severonikel Stream 3 40 km south of Severonikel Stream 4 80 km east of Pechenganikel pH 5.7-6Л 5Л-6.7 S.7-6.4 5.1-5.6 Got Ni 28-38 3.2-9.5 25-5 .0 2Л-4.6 Cu 1.8-4.7 2.S-5.7 2,9 -55 1.1-2.7 Zn 9-17.0 4-13 25 -14 6-15 Sr 12-33 8-20 12-33 10-16 Mn 1-26 5-43 2-17 4-64 A1 15-63 22-85 42-92 70-93 K,, Ni 1.0 2.0 13 0.9 Cu 15 1.4 1.42 15 Zn 0.8 1.4 23 0.9 Sr 1.3 13 1.05 1.0 Mn 9.1 6.0 5.7 63 A1 3.0 3.5 13 0,97 c L Ni 18-31 1.8-5.5 0.6-2.9 1.7-33 Cu 0.1-1.6 03-2.1 0.2-2.9 0.1-12 Zn 1.9-7 1.1-83 03-5 .4 1.0-4.0 Sr 11-24 6-15 11-24 9-14 Ma 1-24 4-42 1-16 2-55 A1 2-35 15-65 6-46 21-53 Ni 1.0 2.25 4.1 1.0 Cu 2.4 1.6 8.4 1.0 Zn 2.0 1.4 5.9 0.8 Sr 13 1.0 0.87 0.9 Mn 9.5 7.5 20 12.0 A1 6.5 2.6 1.7 2.0 C n L Ni 1-9 0.6-25 0.6-2.0 0.2-0.8 Cu 1.3-3.3 15-4.6 1.5-30 0.8-2.4 Zn 4-11.5 1 5 -4 5 1.2-6.2 3 5 -1 1 5 Sr — — — — Mn — — — — A1 10-33 7-41 31-56 25-64 ^ nl Ni 0.4 2.0 0.4 1.0 Cu 1.6 1.6 0.8 1.5 Zn 0.4 2.0 0.95 1.0 Sr — — — — Mn — — — — A1 1.8 4.0 1.0 05 ®tot, total concentration; L, labile portion; NL, non-labile portion; Y = (Callow w ater/(C x ) flood max. concentration changes in various speciations when the water pH decreases during flooding. The val­ ues Y — 1.0 ± 0.3 evidence the lack of variability (range + 0.3 was used because of the accuracy of the chosen method). For Y values < 0.7, concen­ tration decreases either by dissolution or by redis­ tribution of elements between speciations; for Y values > 1.3, an increase in metal concentration occurs. Variability in the ion speciations of metals dur-