Table 2.

Estimated 1-year air pollution concentration by land-use regression models.

Variables	Mean ± SD	Median	Q1	Q3
PM2.5 (μg/m3)	27.34 ± 5.12	26.98	23.67	30.45
PM2.5abs (10–5/m)	1.97 ± 0.36	1.96	1.70	2.23
PM10 (μg/m3)	44.21 ± 4.19	43.56	40.93	46.92
NO2 (μg/m3)	46.13 ± 11.32	46.53	40.40	53.62
NOx (μg/m3)	68.37 ± 21.35	67.68	57.01	83.45
Q, quartile.