. Author manuscript; available in PMC: 2014 Oct 2.

Published in final edited form as: J Expo Sci Environ Epidemiol. 2013 May 15;23(5):466–473. doi: 10.1038/jes.2013.25

Table 3.

Spearman correlations of ambient PM_2.5 mass, composition and oxidative potential, and pollutant gases.^a

	Endotoxin	PM_2.5	EC	OC	WSOC	Macrophage ROS	DTT	NO₂	O₃
Endotoxin	1.00	0.10	0.45	0.42	0.24	0.08	0.28	0.22	0.32
PM_2.5		1.00	0.58	0.66	0.80	0.86	0.85	0.31	0.39
EC			1.00	0.90	0.81	0.66	0.77	0.62	0.55
OC				1.00	0.90	0.72	0.80	0.55	0.71
WSOC					1.00	0.81	0.85	0.51	0.65
Macrophage ROS						1.00	0.86	0.43	0.49
DTT							1.00	0.49	0.54
NO₂								1.00	0.07
O₃									1.00

Data are for daily averages except O₃, which is the 8-h maximum.