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. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: Atmos Environ (1994). 2020 Jan 27;224:117309. doi: 10.1016/j.atmosenv.2020.117309

Fig. 1. The study area and availability of ground monitoring data.

Fig. 1.

(A) Locations of ground monitoring stations (red triangles), reanalysis grid centroids (green dots) and satellite grid centroids (grey dots) over the National Capital Region. (B) Availability of daily PM10 and (C) daily PM2.5 concentrations at ground monitoring stations over time across the National Capital Region, after application of data cleaning filters.