Emissions of air pollutants (not including carbon monoxide), thousand tonnes G While a positive trend towards a reduction in overall emissions of pollutants can be observed, the structure of emissions of pollutants by type remains the same: the largest share are solid particles (except for benzo(a)pyrene, solid fluorine, tarry matter) - 44.2 thousand tonnes or 39% of total emissions; then sulphur dioxide - 34.8 thousand tonnes or 30%; nitrogen oxides - 17 thousand tonnes or 15%; gross fluorine (solid and gaseous) - 7.7 thousand tonnes or 7%; and other substances (9%).