Table 6.

Correlations of PM_2.5.

Component PM2.5	Amb to ext 0.975*	PM2.5 mass to constituents
		Amb	Ext	% Ext −0.273
Metals
Al	−0.203	0.967	−0.299	−0.717
Ca	0.005	0.925	−0.530	−0.836
Cd	0.459	0.426	0.350	0.513
Ce	0.218	−0.322	−0.215	0.068
Cl	0.079	0.931	−0.215	0.068
Cr	0.189	0.725	−0.350	0.513
Cs	0.696	0.068	−0.003	0.335
Cu	0.554	0.947	0.263	−0.744
Fe	0.708	0.993*	0.502	−0.571
Mg	0.115	−0.005	−0.808	−0.125
Mn	0.571	0.940	0.474	−0.175
Mo	−0.003	0.507	−0.744	−0.590
Na	−0.639	0.707	0.051	0.033
Ni	0.045	0.951	0.048	0.184
P	N/A	N/A	−0.098	−0.928
Pb	0.504	0.736	0.213	−0.643
S	−0.189	0.858	−0.215	0.068
Sn	0.809	−0.081	0.350	0.513
Sr	−0.427	0.809	−0.555	−0.528
Tb	1.000*	0.079	0.635	0.079
Zn	0.312	0.975*	−0.166	0.108
Total	−0.610	0.911	−0.219	−0.815
Organics
1MP	0.752	0.365	0.812	−0.123
Acy	−0.231	0.734	−0.243	−0.616
BbFl	0.570	0.953	0.670	0.467
BghiPer	0.139	0.630	0.652	0.279
Ipyr	0.078	0.579	0.635	0.079
Total	−0.083	0.805	−0.083	−0.522

Pearson’s correlation coefficients are presented for total PM_2.5 and constituents (metals and organics) between ambient (“amb”) and extraction solution (“ext”) samples as well as PM_2.5 mass to: ambient values, extraction solution values, and percent extracted.

^*p Value<0.05, indicating a statistically significant correlation.