[CONSTANT OF DISAPPEARANCE OF IONS AND ITS HYGIENIC SIGNIFICANCE].
D000397:Air Pollution; D007477:Ions; D012106:Research; D012119:Respiration; D014691:Ventilation
D007477:Ions
AIR POLLUTION; EXPERIMENTAL LAB STUDY; IONS; VENTILATION
KONSTANTA ISCHEZNOVENIIA IONOV I EE GIGIENICHESKOE ZNACHENIE.