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Air Quality Data provided by the Pima County Department of Environmental Quality Air (pima.gov)
Note that the measurements for PM2.5 (тонкодисперсных частиц) and O3 (озон) are taken from the station Green Valley, Pima County and the measurements for CO (окись углерода) and NO2 (диоксида азота) are taken from the station Rose Elementary, Pima County