. Author manuscript; available in PMC: 2023 Sep 18.

Published in final edited form as: Atmosphere (Basel). 2022 Apr 27;13(5):696. doi: 10.3390/atmos13050696

Table 1. Summary details of data availability over the study areas (2010).

No. of	London	Vancouver	Los Angeles	NYC
Available images (patches)	61 (105,242)	337 (117,924)	315 (369,602)	4 (19,480)
Annual mean LUR PM2.5/NO2 (µg/m³)	14.4/41.0	2.22/8.07	7.48/37.8	9.46/47.4
Co-located PM_2.5/NO₂ ground monitoring sites^*	11/7	8/12	8/10	6/2
Ground monitoring sites - PM2.5/NO2
Annual Mean (µg/m3)	16.17/61.32	5.65/8.11	10.91/25.99	10.17/-
Annual SD (µg/m3)	2.43/27.85	2.49/4.63	1.85/8.71	1.64/-

Only sites that had co-located model-estimated values within a distance less than 500 m were included. For London, daily station data was used to calculate annual means of measured pollution over ground stations that had at least one measured value every month. For the other cities, annual means of measured data were used for the stations that had collected data for over 50% of the year.