Fig. 3From: Age of asthma onset and vulnerability to ambient air pollution: an observational population-based study of adults from Southern TaiwanPlots of measured values and predicted values of PM10Â (a), NO2Â (b), SO2Â (c), and CO (d) at air monitoring stations in 2003 by the kriging method. Regression lines and identity lines are shown in red and blue, respectivelyBack to article page