Average monthly concentrations of Heavy metals in Suspended particulate matter


Year: 2001
Region:Stredocesky
District:Melnik
Institution:Hygienicka sluzba
Station: 465. Melnik-OHS

Pollutant Method Unit Monthly Concentrations Annual Mean
123 456 789 101112

Cr

AAS ng/m^3 1.7 2.0 2.1 3.0 2.3 2.0 4.1 3.2 2.5 2.7 1.9 1.0 2.4

Mn

AAS ng/m^3 9.4 5.0 11.2 11.0 14.0 9.4 8.0 8.8 6.1 11.5 10.2 10.9 9.7

Ni

AAS ng/m^3 30.6 24.4 30.9 25.2 22.4 15.8 14.1 72.9 68.3 64.7 30.9 13.5 34.6

As

AAS ng/m^3 10.3 10.8 6.8 5.4 2.0 1.6 1.1 1.0 1.5 4.7 10.6 9.1 5.4

Cd

AAS ng/m^3 0.9 0.8 0.5 0.4 0.3 0.2 0.2 0.2 0.2 0.5 0.5 0.2 0.4

Pb

AAS ng/m^3 17.0 11.5 8.0 5.3 1.4 3.3 9.9 8.0 6.3 22.1 15.0 18.7 10.5