Table 2.

Particulate matter concentration (μg/m³) means and Pearson correlations in the total population (n = 8397).

		PM10	PM10	PM10	PM10	PM10	PM10	PM2.5	PM2.5	PM2.5–10	PM2.5–10
		2 d	7 d	28 d	365 d	1 mo	12 mo	1 mo	12 mo	1 mo	12 mo
	$\overline{x}$ (SD)	31.9 (12.1)	31.1 (9.2)	30.9 (7.1)	31.2 (5.1)	20.9 (5.8)	20.9 (4.0)	13.2 (4.3)	13.2 (3.0)	7.7 (4.0)	7.8 (3.1)
PM10	2 d	1.00
PM10	7 d	0.74	1.00
PM10	28 d	0.58	0.79	1.00
PM10	365 d	0.43	0.56	0.70	1.00
PM10	1 mo	0.39	0.48	0.54	0.27	1.00
PM10	12 mo	0.15	0.18	0.24	0.35	0.62	1.00
PM2.5	1 mo	0.29	0.36	0.41	0.17	0.73	0.39	1.00
PM2.5	12 mo	0.11	0.12	0.15	0.23	0.40	0.64	0.66	1.00
PM2.5–10	1 mo	0.25	0.31	0.35	0.21	0.67	0.48	−0.02	−0.13	1.00
PM2.5–10	12 mo	0.08	0.12	0.17	0.23	0.41	0.67	−0.14	−0.14	0.74	1.00

Abbreviations: d, day; mo, month; PM, particulate matter; PM₁₀, PM < 10 μm in diameter; PM_2.5, PM < 2.5 μm in diameter; PM_2.5–10, PM > 2.5 and < 10 μm in diameter; SD, standard deviation; $\overline{x}$, mean.