Acute effects on pulmonary function in young healthy adults exposed to traffic-related air pollution in semi-closed transport hub in Beijing

Table 2 Exposure measurements in the transport hub and the park

Exposure variable	Transport hub			Park			P value
Exposure variable	Median	P25	P75	Median	P25	P75	P value
PM_2.5 (μg/m³)	162.10	107.20	210.25	53.00	13.00	67.60	0.01*
BC (μg/m³)	17.89	11.67	23.52	3.52	1.11	5.71	0.01*
CO (ppm)	2.52	1.84	2.99	1.08	0.54	1.53	0.01*
Temp (°C)	29.33	26.27	30.39	28.39	25.66	28.40	0.51
RH (%)	53.29	46.56	58.12	39.21	29.71	52.94	0.01*

ISSN: 1347-4715