The contamination contents of SO2,NO2 and HCHO in the indoor air are monitored.It is found that the most serious pollutant is formaldehyde.

• 针对室内空气污染现状,对室内空气中二氧化硫、二氧化氮、甲醛进行了监测,得出超标最严重的污染物是甲醛;