Tab. Sh-TK
Average monthly concentrations of Heavy metals in Suspended particulate matter
Year:
1997
Region:
Stredocesky
District:
Melnik
Institution:
Hygienicka sluzba
Station:
465. Melnik-OHS
Pollutant
Method
Unit
Monthly Concentrations
Annual Mean
1
2
3
4
5
6
7
8
9
10
11
12
Cr
AAS
ng/m^3
0.9
1.1
1.0
1.1
1.0
1.1
0.6
0.5
0.5
0.3
5.0
4.4
1.5
Ni
AAS
ng/m^3
75.9
40.8
142.1
42.8
44.0
65.7
31.7
7.3
5.0
103.8
115.5
300.8
81.3
Zn
AAS
ng/m^3
172.2
118.6
138.3
105.4
122.0
66.8
12.4
2.6
2.9
16.4
18.1
15.3
65.9
As
AAS
ng/m^3
11.3
182.2
5.9
0.9
0.5
17.3
1.7
0.5
0.5
2.0
1.6
0.3
18.7
Cd
AAS
ng/m^3
1.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.7
2.0
1.4
0.8
Pb
AAS
ng/m^3
70.4
39.2
36.5
18.5
15.1
17.4
11.6
12.6
41.8
58.5
33.5
33.8
32.4