[Substantiation of the maximum permissible concentration of niobium in water bodies].
D008452:Maximum Allowable Concentration; D009556:Niobium / Q000032:analysis*; D012499:Sanitation; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000517:prevention & control*
D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D009556:Niobium
K obosnovaniiu predel'no dopustimoĭ kontsentratsii niobiia v vode vodoemov