Skip to main content

View full-text article in PMC

. Author manuscript; available in PMC: 2019 Feb 20.

Published in final edited form as: J Expo Sci Environ Epidemiol. 2018 Jun 19;29(2):267–277. doi: 10.1038/s41370-018-0048-7

Table 1.

Summary statistics of daily 8-hour maximum ambient ozone concentrations by city

City	Period [# of days]	O₃ concentration (ppb)
		Mean	Median	Min	10^th %	25^th %	75^th %	90^th %	Max	IQR
Atlanta	2002-2008 [2 557]	42.2	41.3	9.2	22.8	28.2	54.4	63.5	96.5	26.2
Birmingham	2002-2008 [2 557]	41.4	40.9	9.4	24.8	29.8	51.2	59.4	83.5	21.4
Dallas	2006-2008 [1 096]	41.8	40.6	9.2	26.9	31.8	50.3	59.3	80.2	18.5
Pittsburgh	2002-2008 [2 557]	37.5	35.9	3.9	16.8	22.8	50.6	59.9	106.3	27.8
St. Louis	2002-2007 [2 004]	38.5	37.1	6.5	19.0	24.9	50.1	59.6	89.6	25.2

Abbreviations: IQR, interquartile range