Name of pollutant

Analytical method

source

Sulfur dioxide (SO2)

Sulfur dioxide (SO2) formaldehyde absorption para rosaniline spectrophotometry; Mercury tetrachloride parafuchsin spectrophotometry; UV fluorescence method;

GB/T 15262-94

GB 8970-88

Inhalable particulate matter

Gravimetric analysis

GB6921-86

Nitrogen dioxide (NO2)

Saltzman analysis method Chemiluminescence method

GB/T 15436-95