[Impurities in the air resulting from use of explosive gases in subaqueous out-workings of Metrostroy in blind driftworking].
D000388:Air; D005740:Gases; D006801:Humans; D006920:Hygiene; D007221:Industry; D008906:Mining; D009790:Occupations
D005740:Gases
AIR/impurities; GAS; INDUSTRY AND OCCUPATION/hygiene; MINES AND MINERS; TUNNELS
Zagriaznenie vozdukha vzry-vnymi gazami v podzemnykh vyrabotkakh Metrostroia pri prokhodke glukhim zaboem.