Figure 2
Median PM 2.5 in μg/m 3 and median NO 2 in μg/m 3 during 2005 at the air pollution monitoring sites adjacent to the study neighborhoods. Median PM2.5 and NO2 levels were each significantly lower (P < 0.001) at El Condado than at El Camal. El Condado is adjacent to JR, the lower air pollution site, and El Camal is adjacent to LP, the higher air pollution site.