Indoor Air Pollution and Its Control in China

Table 4 Indoor concentrations of benzene, toluene, and xylenes in a newly renovated hotel in Beijing^a [11]

Pollutant	Sampling site	Sampling times	Concentration (μg/m³)		Indoor limit^b (μg/m³)
Pollutant	Sampling site	Sampling times	Mean	Range	Indoor limit^b (μg/m³)
Benzene	Guest room	6	107.0	45.7–178.8	110 (1-h average)
Benzene	Conference room	6	87.0	21.7–191.5	110 (1-h average)
Toluene	Guest room	6	400.7	159.0–639.7	200 (1-h average)
Toluene	Conference room	6	174.3	47.1–330.8	200 (1-h average)
Xylenes	Guest room	6	1,623.4	1,185.7–2,484.9	200 (1-h average)
Xylenes	Conference room	6	402.4	42.1–1,037.0	200 (1-h average)