(NpO^WENNAQ MINERALIZACIQ GORODSKIH OTBROSOW I IH SELXSKOHOZQJSTWENNOE ISPOLXZOWANIE (B:s ((N|KSPERIMENTALXNOE ISSLEDOWANIE(B) /s - (NbABAQNC(B, (NrUBEN aMBARCUMOWI^s ((NlENINGRAD (B:s (NmEDGIZ(B. (NlENINGR(B. (NOTD(B-(NNIE(B,s, 1958)
Keywords: (NsANITARNAQ OHRANAs; (NsANITARNO(B-(NPROSWETITELXNAQ RABOTAs; (NpO^WA(B, (NZAGRQZNQ@]IE WE]ESTWAs