[The problem of air, water and soil pollution].
D000397:Air Pollution / Q000032:analysis*; D006266:Health Education; D007220:Industrial Waste; D012989:Soil Pollutants / Q000032:analysis*; D014876:Water Pollution / Q000032:analysis*
D007220:Industrial Waste; D012989:Soil Pollutants
Il probelma dell'inquinamento dell'aria, delle acque e del suolo.