Fig. 4
From: Improved cookstoves enhance household air quality and respiratory health in rural Rwanda
Comparison of (a) cooking time, (b) pollutants exposure rate, (c) carbonaceous pollutant exposure concentrations, and (d) PAH mass concentrations measured for each cooking method. The lower and upper borders of the boxes represent the first and third quartiles in which the middle 50% of the statistical variables are located, the horizontal black lines inside the boxes represent the median, and the whiskers represent the minimum and maximum values without outliers. The black dots represent the outliers.
