Astigmatism Associated with Allergic Conjunctivitis in Urban School Children

Figure 1

Map showing terrain in the Ulsan metropolitan region (UMR). (a) Industrial (light red shaded regions) and urbanized area (gray lines), two elementary schools (S1 and S2) for survey, and two air quality monitoring sites near each school. (b) Distribution of VOCs emissions from Korean emissions inventory data of the 2015 Clean Air Policy Support System (CAPSS) (http://airemiss.nier.go.kr/main/jsp).