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Table 10 Limits of environmental pollutants in civil building engineering [61, 62]

From: Indoor Air Pollution and Its Control in China

Pollutant Group I civil building engineering Group II civil building engineering
GB 50325-2001 GB 50325-2010 GB 50325-2001 GB 50325-2010
Radon (Bq/m3) ≤200 ≤200 ≤400 ≤400
Formaldehyde (mg/m3) ≤0.08 ≤0.08 ≤0.12 ≤0.10
Benzene (mg/m3) ≤0.09 ≤0.09 ≤0.09 ≤0.09
Ammonia (mg/m3) ≤0.2 ≤0.2 ≤0.5 ≤0.2
TVOC (mg/m3) ≤0.5 ≤0.5 ≤0.6 ≤0.6