Fractional Characteristics of Heavy Metals Pb, Zn, Cu, and Cd in Sewer Sediment from Areas in Central Beijing, China
Table 1
The and values of the heavy metals.
Sampling sites
Cu
Zn
Cd
Pb
I
73.79
2.73
298.77
21.04
396.33
II
31.06
1.24
250.00
20.73
303.03
III
24.03
1.03
173.53
5.83
204.42
IV
48.72
1.54
545.09
25.11
620.46
V
20.48
1.23
472.75
12.75
507.21
VI
38.05
1.73
248.58
14.60
302.96
F1
46.58
1.43
375.00
24.18
447.19
F2
23.51
1.63
625.00
33.39
683.53
F3
24.40
1.95
899.00
23.03
948.38
F4
48.80
1.82
875.00
24.64
950.26
F5
39.93
0.98
250.00
26.49
317.40
C1
37.27
1.30
375.00
19.35
432.92
C2
39.93
1.11
312.50
20.73
374.27
C3
48.80
1.17
262.50
21.84
334.31
C4
35.49
1.69
250.00
22.99
310.17
Mean value
38.72
1.50
414.18
21.11
475.52
(I) old residential area, (II) comprehensive area, (III) new residential area, (IV) pedestrian only commercial area, (V) educational area, and (VI) business area; Chegongzhuang Street (C1 to C4) and Fuwai street (F1 to F5).
