. Author manuscript; available in PMC: 2008 Jan 1.

Published in final edited form as: J Occup Environ Hyg. 2007 Jan;4(1):36–48. doi: 10.1080/15459620601070302

Table II.

Summary statistics for selected trips

City	Overall Trip Average Concentration And Std Deviation (μg/m³)			Prevailing Winds and Speed^A
Indianapolis, IN		Avg	Std Dev	N,NNE, NE, WNW,NW, NNW	Light to Moderate
	PM_2.5	9.11	12.63	SE, SSE,S, SSW,SW	Light to Moderate
	EC	0.36	0.55
	OC	4.12	3.17

Kernersville, NC		Avg	Std Dev	NE, ENE	Light
	PM_2.5	18.57	6.40	S, SE, SSE, SSW	Light to Moderate
	EC	1.03	0.29	W, WNW	Light
	OC	8.47	2.61

Valdosta, GA		Avg	Std Dev	All Wind directions were light
Site 1	PM_2.5	11.23	0.85
	EC	0.25	0.05
	OC	4.67	0.39

Valdosta, GA		Avg	Std Dev	N, NNE	Light
Site 2	PM_2.5	14.71	6.69	SE, S, SSW	Light to Moderate
	EC	0.58	0.09
	OC	6.06	0.07

Wind Speed Classification: Light (0.45 to 2.23 m/s); Moderate (2.23 to 6.70 m/s)