4 Management of Surfaces Water Resources—Ecological Status …
161
Table 4.8
Statistic data regarding the values of the group-specific pollutants—metals
Metals
2015
2016
2017
Min
Med
Max
Min
Med
Max
Min
Med
Max
Tîrgu Mures
, sector
Total Cd
0.0125
0.0615
0.176
0.0125
0.042041
0.081
0.125
0.125
0.125
Total Ni
0.5
1.6825
3.69
0.5
1.605
3.2
2
2
2
Total Pb
0.5
2.5325
4.31
1.15
1.97
3.7
2.5
2.5
2.5
Total Cu
1.26
2.28
4.06
0.598
2.015666
3.75
1.5
1.84666
3.89
Total Zn
5
12.6
39
0.25
14.356666
24
0.25
11.375
25
Total Cr
0.5
0.5
0.5
0.5
0.5
0.5
1
1
1
Total As
1.34
2.3525
4.58
0.799
1.861583
2.78
2
2
2
Ungheni/Mures
, sector
Total Cd
–
–
–
0.0125
0.04325
0.09
0.125
0.125
0.125
Total Ni
–
–
–
1.71
2.225
2.72
2
2
2
Total Pb
–
–
–
1.52
1.9605
2.402
2.5
2.5
2.5
Total Cu
–
–
–
1.86
2.3625
2.71
1.5
1.7375
3.4
Total Zn
–
–
–
6.32
18.13
27.6
0.25
9.1475
25
Total Cr
–
–
–
0.5
0.9825
2.43
1
1
1
Total As
–
–
–
0.811
0.95325
1.22
2
2
2
Iernut sector
Total Cd
0.041
0.061
0.074
0.032
0.06325
0.086
0.125
0.125
0.125
Total Ni
0.5
2.05
3.99
1.12
2.1625
3.27
2
2
2
Total Pb
1.57
2.47
3.79
2.98
3.445
4.09
2.5
2.5
2.5
(continued)