Figure 1

Daily average concentration of PM10, PM2.5 and PM1 in (a) Putrajaya, (b) Bukit Fraser, (c) Kota Samarahan and (d) Chiang Mai.
Daily average concentration of PM10, PM2.5 and PM1 in (a) Putrajaya, (b) Bukit Fraser, (c) Kota Samarahan and (d) Chiang Mai.