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en:legend:gisgr:european_air_quality_index_o3

European air quality index: sub-index O3 (based on pollutant concentrations in µg/m3)

good
fair
moderate
poor
very poor
extremely poor
no data
en/legend/gisgr/european_air_quality_index_o3.txt · Last modified: 2020/08/27 13:29 by heth