. Author manuscript; available in PMC: 2012 Jul 1.

Published in final edited form as: Environ Res. 2011 Apr 29;111(5):677–684. doi: 10.1016/j.envres.2011.04.004

Table 2.

Correlation of land-use around residences of study subjects and estimated NO₂ levels

		Land-use categories				Traffic pollution estimated NO₂
		Forest	Grass/Farm	Rock/Sand/Clay	Water	Traffic pollution estimated NO₂
Land-use	Urban	−0.92	−0.53	−0.07	−0.32	0.63
	Forest		0.46	−0.06	0.06	−0.58
	Grass/Farm			0.03	0.00	−0.35
	Rock/Sand/Clay				0.33	−0.09
	Water					−0.11

Note: Land-use is based on a 1,540m buffer. NO₂ levels are estimated and designed to be a marker for traffic-related air pollutants more broadly.