Nitrogen Dioxide Calibration Gas (NO2)
Nitrogen Dioxide (NO2) is a toxic gas that is also an oxidizer with many industrial uses, such as a bleaching agent for flour, and used in the manufacture of explosives. NO2 is produced by many combustion sources, including internal combustion engines, cigarettes, and butane and kerosene heaters. Human exposure to NO2 results in edema, and at concentrations above 100 ppm, asphyxiation from fluid in the lungs. Homes and businesses with gas stoves have higher levels of NO2 than those without, and areas near roadways have reported NO2 levels 30 to 100% higher than areas that are more than 150 feet away from these areas.