Table C.

Average and seasonal correlations between the regional averages and the concentrations in Bridgeport, Danbury, Hartford, New Haven, or Springfield for PM_2.5 mass concentrations, source contributions, and selected PM_2.5 chemical components

Average	PM2.5	Regional Sulfur	Motor Vehicle	Road Dust	Oil Combustion	Sea Salt
Bridgeport	0.92	0.85	0.68	0.71	0.71	0.60
Danbury	0.94	0.91	0.76	0.78	0.61	0.55
Hartford	0.92	0.87	0.80	0.70	0.77	0.59
New Haven	0.85	0.90	0.68	0.56	0.28	0.50
Springfield	0.83	0.82	0.72	0.67	0.73	0.41

Warm-Season	PM2.5	Regional Sulfur	Motor Vehicle	Road Dust	Oil Combustion	Sea Salt
Bridgeport	0.95	0.89	0.68	0.69	0.68	0.43
Danbury	0.94	0.93	0.69	0.76	0.58	0.35
Hartford	0.92	0.91	0.76	0.71	0.70	0.38
New Haven	0.89	0.92	0.62	0.54	0.29	0.26
Springfield	0.83	0.86	0.66	0.74	0.61	-

Cold-Season	PM2.5	Regional Sulfur	Motor Vehicle	Road Dust	Oil Combustion	Sea Salt
Bridgeport	0.90	0.76	0.68	0.69	0.73	0.68
Danbury	0.94	0.88	0.81	0.75	0.59	0.63
Hartford	0.93	0.79	0.82	0.67	0.81	0.71
New Haven	0.84	0.86	0.69	0.58	-	0.55
Springfield	0.81	0.75	0.72	0.51	0.74	0.44

Average	EC	Zn	Pb	Cu	Br	Si	Fe	Al	Ca
Bridgeport	0.70	0.70	0.49	0.65	0.65	0.77	0.56	0.69	0.62
Danbury	0.88	0.80	0.47	0.60	0.61	0.84	0.75	0.77	0.75
Hartford	0.83	0.86	0.49	0.64	0.60	0.77	0.75	0.61	0.71
New Haven	0.66	0.70	0.31	0.49	0.55	0.61	0.46	0.58	0.55
Springfield	0.75	0.79	0.44	0.48	0.55	0.70	0.64	0.62	0.63

	Ba	Ti	S	K	V	Ni	Na	Cl	Mn
Bridgeport	0.21	0.63	0.91	0.86	0.56	0.57	0.76	0.54	0.27
Danbury	0.32	0.66	0.94	0.90	0.59	0.55	0.72	0.51	0.35
Hartford	0.30	0.58	0.93	0.88	0.63	0.51	0.81	0.57	0.36
New Haven	-	0.46	0.91	0.80	0.35	0.43	0.70	0.53	-
Springfield	0.20	0.60	0.87	0.82	0.61	0.55	0.54	0.43	0.16

Warm-Season	EC	Zn	Pb	Cu	Br	Si	Fe	Al	Ca
Bridgeport	0.60	0.68	0.38	0.65	0.61	0.79	0.57	0.75	0.66
Danbury	0.89	0.69	0.45	0.60	0.61	0.84	0.74	0.78	0.74
Hartford	0.82	0.81	0.44	0.66	0.55	0.78	0.75	0.66	0.67
New Haven	0.71	0.68	0.36	0.65	0.55	0.62	0.64	0.63	0.64
Springfield	0.73	0.77	0.34	0.48	0.51	0.74	0.71	0.76	0.65

	Ba	Ti	S	K	V	Ni	Na	Cl	Mn
Bridgeport	-	0.62	0.91	0.86	0.60	0.61	0.82	0.40	0.27
Danbury	0.26	0.68	0.94	0.85	0.57	0.46	0.74	0.32	0.34
Hartford	0.32	0.57	0.93	0.83	0.62	0.52	0.81	0.40	0.28
New Haven	-	0.51	0.94	0.78	0.41	0.44	0.74	0.31	-
Springfield	0.22	0.66	0.88	0.77	0.49	0.36	0.64	0.20	-

Cold-Season	EC	Zn	Pb	Cu	Br	Si	Fe	Al	Ca
Bridgeport	0.81	0.74	0.63	0.66	0.69	0.75	0.57	0.60	0.65
Danbury	0.88	0.87	0.49	0.61	0.60	0.83	0.77	0.73	0.77
Hartford	0.87	0.88	0.56	0.60	0.64	0.76	0.75	0.52	0.75
New Haven	0.57	0.66	0.28	0.28	0.53	0.62	0.28	0.51	0.43
Springfield	0.79	0.77	0.58	0.45	0.62	0.64	0.53	0.41	0.60

	Ba	Ti	S	K	V	Ni	Na	Cl	Mn
Bridgeport	0.29	0.56	0.93	0.87	0.53	0.51	0.67	0.57	0.31
Danbury	0.44	0.61	0.94	0.91	0.60	0.55	0.69	0.58	0.36
Hartford	0.28	0.54	0.92	0.90	0.59	0.51	0.78	0.63	0.46
New Haven	-	0.33	0.89	0.79	-	-	0.59	0.55	-
Springfield	-	0.44	0.82	0.83	0.56	0.47	0.35	0.47	-