[Sanitary protection zones around sewage underground disposal sites].
D007220:Industrial Waste; D012722:Sewage; D012987:Soil; D014586:USSR; D014876:Water Pollution / Q000517:prevention & control
D007220:Industrial Waste; D012722:Sewage; D012987:Soil
K voprosu o zonakh sanitarnoĭ zashchity vokrug punktov zakhoroneniia stochnykh vod v zemnye nedra.