[Rain runoff, snow melt and irrigation waters as the chief factor in the pollution of the Kal'mius River within the boundaries of Donetsk].
D014455:Ukraine; D014877:Water Pollution, Chemical / Q000517:prevention & control*
Livnevye, talye i polivomoechnye vody kak osnovnoĭ faktor zagriazneniia r. Kal'mius v cherte Donetska.