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Fig. 2 | Respiratory Research

Fig. 2

From: Effect of ambient fine particulates (PM2.5) on hospital admissions for respiratory and cardiovascular diseases in Wuhan, China

Fig. 2

Distribution of individual PM2.5 exposures on the day of admission. Data points represent the PM2.5 concentrations of individuals. The density plot on the right margin of the y-axis visualizes the distribution of the number of subjects over the PM2.5 concentration. The dashed lines denote the Grade II criteria set by the Chinese AQS (75 μg/m3) and the WHO AQG (25 μg/m3)

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