Fig. 2
Crude associations between child height and exposure to PM2.5 in the month of birth. Note: Panel a stratifies by urban/rural, Panel b by season of birth, and Panel c by mother’s height. Curves are kernel-weighted local regressions. The vertical axis in all panels is the residual of child height-for-age, after controlling for age-in-months by sex indicators. In Panel B, observations of PM2.5 that are greater than the 95th percentile for each season are left out because a sufficient number of observations are not available to construct means for pollution levels that are very high for the season