[A method for determining the total amount of nitrogen oxides in the air].
D000397:Air Pollution; D003124:Colorimetry; D006801:Humans; D008722:Methods; D009584:Nitrogen / Q000032:analysis*; D010087:Oxides / Q000032:analysis*
D010087:Oxides; D009584:Nitrogen
Metod summarnogo opredeleniia okislov azota v vozdukhe.