Fig. 4From: Assessment of 24-h moving average PM2.5 concentrations in Bangkok, Thailand against WHO guidelinesDistance between hourly PM2.5 concentrations measured at station 02 T and its 24-h average PM2.5 concentrations recorded at leftmost, center, and rightmost, respectively. Blue color represents hourly time series data, red color represents 24-h moving average time series data, and gray color is point to point distanceBack to article page