Long-Term Dynamics of Urban Soil Pollution with Heavy Metals in Moscow

Table 2

Mean content of HMs (mg/kg) in topsoils of natural background and various land-use zones in the Eastern district of Moscow in 1989, 2005, and 2010.

Year (number of samples)	Pb	Zn	Cu	Cd	Co	Cr	Ni	Mn	Cs
Natural background of the Meshchera lowland
1989 (10)	9.04	37.5	27.9	0.34	6.60	32.0	15.2	585	5.40
Highways (А) and industrial zones (P)
1989 (12)	60.5	224	80.7	0.65	3.85	34.0	17.6	442	5.58
2005 (14)	174	305	130	0.81	5.82	51.7	26.9	518	8.08
2010 (13), А	59.5	183	67.5	1.23	8.48	89.9	32.2	412	1.90
2010 (5), Р	114	286	88.0	1.37	9.3	92.2	35.4	513	1.88
Residential zone with low-rise buildings (L)
1989 (5)	72.4	138	39.4	0.64	2.67	32.1	16.2	463	4.53
2005 (5)	159	180	65.7	0.81	3.84	47.9	22.6	549	6.34
2010 (5)	68.8	163	60.6	1.33	8.12	95.6	33.6	544	1.64
Residential zone with medium-rise buildings (M)
1989 (16)	23.4	130	40.1	0.35	2.48	20.5	12.1	340	4.65
2005 (17)	39.9	165	58.8	0.48	3.76	29.2	17.8	414	6.47
2010 (10)	66.7	223	62.3	1.43	8.6	106	30.0	493	2.09
Residential zone with high-rise buildings (H)
1989 (5)	16.4	76.5	24.6	0.14	1.61	16.3	9.14	260	2.43
2005 (5)	20.2	88.3	28.1	0.15	1.82	18.2	10.6	309	2.91
2010 (7)	44.1	162	54.0	1.45	8.57	104	26.1	389	1.99
Recreational zone (R)
1989 (6)	21.1	76.7	24.3	0.17	2.44	9.24	7.58	512	4.04
2005 (6)	32.9	82.7	28.9	0.20	2.87	11.6	9.20	538	4.44
2010 (9)	49.4	147	50.4	2.05	8.8	101	29.0	482	1.87
Agricultural landscapes (AG)
1989 (5)	45.6	96.3	57.7	1.07	3.20	34.0	18.0	535	3.74
2005 (5)	84.7	122	71.2	1.44	4.09	37.9	21.5	640	5.19
2010 (3)	34.0	173	67.0	3.70	7.7	137	27.3	492	1.47