Annual mean arsenic and cadmium concentrations in 2017

Observed concentrations of arsenic (left) and cadmium (right) in 2017. The map shows the arsenic and cadmium annual mean concentrations. The dots in the last two colour categories indicate stations with exceedances of the annual target value (6 ng/m3 for arsenic and 5 ng/m3 for cadmium). Only stations with more than 14 % of valid data have been included in the map.