Air Pollution of Nature Reserves near Cities in Russia

Table 3

Results of mass spectrometry of the snow samples collected in Birobidzhan city and the Bastak Nature Reserve, μg/L.

	Al	Cr	Fe	Ni	Cu	Zn	Cd	Ba	Pb	As
Birobidzhan city
G1	4.15 ± 1.24	1.49 ± 0.45	30.53 ± 9.16	0.37 ± 0.11	1.1 ± 0.33	23.93 ± 7.18	0.011 ± 0.003	3.38 ± 1.0169	0.51 ± 0.15	0.69 ± 0.21
G2	1.5 ± 0.45	1.78 ± 0.53	7.3 ± 2.2	0.38 ± 0.11	1.10 ± 0.33	14.82 ± 4.45	0.008 ± 0.002	2.02 ± 0.60	0.58 ± 0.17	0.60 ± 0.18
G3	1.36 ± 0.41	2.23 ± 0.67	3.13 ± 0.94	0.35 ± 0.11	0.71 ± 0.21	27.14 ± 8.14	0.012 ± 0.003	4.27 ± 1.28	1.57 ± 0.47	0.56 ± 0.17
G4	2.18 ± 0.65	3.22 ± 0.96	3.92 ± 1.18	0.33 ± 0.09	0.73 ± 0.22	11.36 ± 3.41	0.005 ± 0.002	1.66 ± 0.5	0.34 ± 0.103	0.39 ± 0.12
G5	4.58 ± 1.37	2.80 ± 0.84	0.85 ± 0.25	0.92 ± 0.27	0.42 ± 0.12	19.52 ± 5.86	0.004 ± 0.001	1.81 ± 0.54	0.17 ± 0.05	0.47 ± 0.14
The Bastak Nature Reserve
B1	1.32 ± 0.39	0.04 ± 0.01	1.86 ± 0.56	0.26 ± 0.08	0.57 ± 0.17	7.30 ± 2.19	0.003 ± 0.001	0.58 ± 0.17	0.15 ± 0.04	0.13 ± 0.04
B2	2.50 ± 0.75	0.04 ± 0.01	2.71 ± 0.81	0.21 ± 0.06	0.54 ± 0.16	8.21 ± 2.46	0.003 ± 0.001	0.68 ± 0.21	0.13 ± 0.04	0.18 ± 0.05
B3	0.75 ± 0.22	0.14 ± 0.04	2.03 ± 0.61	11.97 ± 3.59	2.65 ± 0.79	20.56 ± 6.17	0.0013 ± 0.0004	0.71 ± 0.21	0.02 ± 0.01	0.09 ± 0.02
B4	2.24 ± 0.67	0.27 ± 0.08	1.05 ± 0.31	0.56 ± 0.17	0.33 ± 0.1	19.48 ± 5.84	0.004 ± 0.0013	2.49 ± 0.75	0.14 ± 0.04	0.23 ± 0.07
B5	0.70 ± 0.21	0.03 ± 0.01	0.72 ± 0.22	1.14 ± 0.34	0.58 ± 0.17	8.66 ± 2.59	0.0013 ± 0.0004	0.25 ± 0.075	0.13 ± 0.04	0.12 ± 0.04