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Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;
Environ Res. Author manuscript; available in PMC 2009 February 1.
Published in final edited form as:
Environ Res. 2008 February; 106(2): 148–155.
Published online 2007 October 24. doi: 10.1016/j.envres.2007.08.012

Figure 1

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Indoor PM Concentrations in Inner-City Baltimore Homes

These box and whisker plots demonstrate the PM values measured in the homes and simultaneous ambient levels. The boxes show the interquartile ranges (IQR) and the heavy dark lines are the medians. Whiskers represent closest value within1.5X the IQR of PM values. In-home PM concentrations were significantly higher than ambient PM concentrations and in most cases. Over 75% of homes exceeded the EPA annual limit for ambient PM2.5 and 47% of homes exceeded the annual limit for PM10.

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  • Figure 1
  • Figure 2a and 2b
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