2021
No
https://onlinelibrary.wiley.com/doi/10.1111/ina.12864
Sun, Chanjuan
Asia
Observational
Other
The results illustrated that the median concentration of indoor air
ammonia in residences, offices, and school buildings was 0.21
mg/m3, 0.26mg/m3, and 0.15mg/m3. There were 46.4%, 71.4%, and 40% of these samples exceeding the NH3 standard, respectively. The national concentrations and the equivalent exposure levels of adults and children were calculated and found to be higher than 0.20 mg/m3. The concentration of ammonia varied greatly in different climate zones and economic development regions. Higher concentrations were found in the severe cold zone and the regions with higher economic level.
ammonia in residences, offices, and school buildings was 0.21
mg/m3, 0.26mg/m3, and 0.15mg/m3. There were 46.4%, 71.4%, and 40% of these samples exceeding the NH3 standard, respectively. The national concentrations and the equivalent exposure levels of adults and children were calculated and found to be higher than 0.20 mg/m3. The concentration of ammonia varied greatly in different climate zones and economic development regions. Higher concentrations were found in the severe cold zone and the regions with higher economic level.