Figure 1

Box plots showing the distribution of 24 hr PM 2.5 concentrations in the kitchen area and living area areas in study households across 4 states (Note: NSF indicates use of kerosene and/or LPG as the primary fuel).
Box plots showing the distribution of 24 hr PM 2.5 concentrations in the kitchen area and living area areas in study households across 4 states (Note: NSF indicates use of kerosene and/or LPG as the primary fuel).