Construction of an environmental quality index for public health research

Table 6 Overall and RUCC-stratified loadings for select variables in the air domain

Constructs indented	Metropolitan - urbanized	Non-metro urbanized	Less-urbanized	Thinly populated	Overall
	(RUCC1 = 1089)	(RUCC2 = 323)	(RUCC 3 = 1059)	(RUCC4 = 670)	(n = 3141)
Air Domain
Criteria air pollutants
Nitrogen Dioxide	0.0613	0.1091	0.1014	0.0911	0.0848
PM₁₀	0.0845	0.0677	0.0627	0.0937	0.0897
PM_2.5	0.0701	0.1513	0.1281	0.1354	0.1036
Hazardous air pollutants
Carbon disulfide	0.1169	0.1140	0.1172	0.1261	0.1242
Carbon tetrachloride	0.0259	0.0281	0.0186	−0.0028	0.018
Cyanide compounds	0.1655	0.1674	0.1680	0.1497	0.1477
Diesel engine emissions	0.1545	0.1441	0.1431	0.1163	0.1321
Dimethyl sulfate	0.0472	0.1201	0.1024	0.1072	0.0942
Lead compounds	0.1366	0.0778	0.069	0.0581	0.1045
PAH/POM	0.1143	0.0822	0.1172	0.1192	0.1199
Polychlorinated biphenyls	0.0284	0.1300	0.0954	0.0779	0.0729
Vinyl chloride	0.1489	0.0997	0.1008	0.097	0.1257

ISSN: 1476-069X