Table 1.

Key parameters and calculated results for 18 NMMAPS cities with published infiltration rate distributions (Persily et al. 2010).

Parameters									Calculated results
No.	City	Population growth 1990–2000a (%)	λinfilt(hr–1)	CDD	x	y	λoverall (hr–1)	Δ[O3]in (ppb)	Δ[prod]in (ppb)	tin/tout	ΔO3_exposure
1		Atlanta, GA		5.7		0.43		1,006		0.22		0.86		0.48		1.4		2.6		6.47		1.89
2		Birmingham, AL		–8.7		0.43		1,045		0.22		0.80		0.50		1.4		2.6		6.47		1.92
3		Boston, MA		2.6		0.68		432		0.067		0.18		0.76		2.0		2.4		7.58		2.54
4		Buffalo, NY		–10.8		0.70		304		0.033		0.43		0.73		2.0		2.4		6.74		2.32
5		Chicago, IL		4.0		0.61		464		0.067		0.51		0.66		1.8		2.5		6.83		2.23
6		Cincinnati, OH		–9.0		0.52		672		0.11		0.57		0.59		1.6		2.5		6.83		2.12
7		Corpus Christi, TX		7.8		0.48		1,943		0.41		0.78		0.62		1.7		2.5		6.58		2.12
8		Dallas/Ft. Worth, TX		18.0		0.50		1,428		0.32		0.89		0.55		1.6		2.5		6.58		2.02
9		Denver, CO		18.6		0.49		386		0.092		0.32		0.58		1.6		2.5		6.54		2.07
10		Los Angeles, CA		6.0		0.42		837		0.020		0.34		0.44		1.3		2.6		6.46		1.83
11		Miami, FL		1.1		0.35		2,435		0.59		0.80		0.53		1.5		2.6		6.47		1.97
12		Nashville, TN		11.7		0.51		920		0.18		0.83		0.56		1.6		2.5		6.47		2.01
13		New York City, NY		9.4		0.62		644		0.10		0.10		0.76		2.0		2.4		6.74		2.36
14		Phoenix, AZ		34.3		0.42		2,327		0.44		0.92		0.47		1.4		2.6		6.46		1.88
15		Seattle, WA		9.1		0.62		107		0.0		0.06		0.62		1.7		2.5		5.61		1.96
16		St. Louis, MO		–12.2		0.58		867		0.23		0.80		0.65		1.8		2.5		6.27		2.11
17		Washington, DC		–5.7		0.54		867		0.12		0.82		0.57		1.6		2.5		6.66		2.07
18		Worcester, MA		1.7		0.60		206		0.027		0.10		0.64		1.8		2.5		7.58		2.33
Abbreviations: λinfilt, average infiltration rate when windows are closed; CDD, cooling degree days; x, fraction of year cooling occurs; y, fraction of residences with central AC; λoverall, average overall air change rate; Δ[O3]in, change in indoor concentration of ozone per 10-ppb change in outdoor ozone; Δ[prod]in, change in indoor concentration of ozone-derived products per 10-ppb change in outdoor ozone; tin/tout, ratio of time spent indoors to time spent outdoors and in vehicles (from Table 10 of Klepeis et al. 2001); ΔO3_exposure, change in total ozone exposure per unit change in outdoor ozone exposure (i.e., the ozone exposure coefficient). aPopulation growth (US Census Bureau 2011) is a rough indicator for the average age of buildings in a city.