Air

Climate change

Ozone depletion

Transboundary air pollution

Air quality
Indicators
Emissions of pollutants 
Concentrations of pollutants in air:
     Sulphur dioxide
     Nitrogen dioxide
     Ozone
     Benzene
     Particulates PM_{10
Natural resource tax for emissions of pollutants}

Mean yearly concentrations of nitrogen dioxide
Source: Latvian Hydrometeorological Agency