to determine if these pollutants produce airway responses , 17 asthmatics inhaled the following sulfates : sodium bisulfate , ammonium sulfate , ammonium bisulfate ( nh4hso4 ) , or sulfuric acid ( h2so4 ) aerosols with an aerodynamic diameter of 0.80 micron at concentrations of 100 micrograms/m3 , 450 micrograms/m3 , and 1,000 micrograms/m3 .
C0038720
sulfates
C0002620
ammonium sulfate