[Hygienic evaluation of the existing technology for purifying the drinking water and some ways to improve it].
D006920:Hygiene; D012498:Sanitary Engineering / Q000592:standards*; D014586:USSR; D014877:Water Pollution, Chemical / Q000517:prevention & control; D014881:Water Supply / Q000592:standards*
Gigienicheskaia otsenka sushchestvuiushcheĭ tekhnologii ochistki pit'evoĭ vody i nekotorye puti ee uluchsheniia