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. Author manuscript; available in PMC: 2009 Feb 1.
Published in final edited form as: Environ Res. 2007 Oct 24;106(2):148–155. doi: 10.1016/j.envres.2007.08.012

Figure 2a and 2b. Predictors of Elevated Indoor PM2.5 and PM10 Concentrations by Events over the 3-day Period.

Figure 2a and 2b

Figure 2a and 2b

Box and whisker plots demonstrate the dose response effect seen with increased frequency of smoking, sweeping, and stove use over the 3-day monitoring period that lead to increased indoor PM levels. The median values are displayed within boxes that contain the middle 50% of PM values. The whiskers extend to the closest value within 1.5 times the interquartile range.