Fig. 2From: Maternal PM2.5 exposure triggers preterm birth: a cross-sectional study in Wuhan, ChinaGeographical location of Wuhan in China (a). Spatial distribution of mean PM2.5 estimations across Wuhan city from January 1, 2013 to August 31, 2015 (b). A scatter plot correlating the measured and predicted PM2.5 values from 10 monitoring stations (c)Back to article page