V4.GL.03 / V4.GL.03.NoGWR
Global/Regional Estimates
- retired -
We estimate global annual surface fine particulate matter (PM₂.₅) concentrations for 1998-2019. Aerosol optical depth (AOD) from the NASA MODIS C6.1, MISR v23, MAIAC C6, and SeaWiFS satellite products are combined and related to surface PM₂.₅ concentrations using geophysical relationships between surface (PM₂.₅) and AOD simulated by the GEOS-Chem chemical transport model. These estimates are subsequently calibrated to global ground-based observations of (PM₂.₅) from the World Health Organization using Geographically Weighted Regression (GWR). These estimates identify significant regional trends, as detailed in the reference below.
References:
Hammer, M. S.; van Donkelaar, A.; Li, C.; Lyapustin, A.; Sayer, A. M.; Hsu, N. C.; Levy, R. C.; Garay, M. J.; Kalashnikova, O. V.; Kahn, R. A.; Brauer, M.; Apte, J. S.; Henze, D. K.; Zhang, L.; Zhang, Q.; Ford, B.; Pierce, J. R.; and Martin, R. V., Global Estimates and Long-Term Trends of Fine Particulate Matter Concentrations (1998-2018)., Environ. Sci. Technol, doi: 10.1021/acs.est.0c01764, 2020. [Link]
Errata: In Table S5, the global population weighted mean GEO PM2.5, HBR PM2.5, and GBD PM2.5 values of 41.8, 46.9, and 55.7 should be corrected to 35.3, 40.4, and 46.3.
Scientific Datasets:
Global resolved datasets are provided in ArcGIS-compatible NetCDF [.nc] or zipped ASCII [.asc.zip] file. Note that the unzipped ASCII files can be cumbersome. Gridded files use the WGS84 projection. Country means are also provided in a comma separated ascii (.csv) format. Dust and Sea-Salt Removed PM₂.₅ estimates apply simulated compositional information to our full-composition values, following van Donkelaar et al., EHP, 2015. Other extractions can often be produced upon request. Please contact our Support Team (support@satpm.org).
Note that these estimates are primarily intended to aid in large-scale studies. Gridded datasets are provided to allow users to agglomerate data as best meets their particular needs. Datasets are gridded at the finest resolution of the information sources that were incorporated, but do not fully resolve PM₂.₅ gradients at the gridded resolution due to influence by information sources at coarser resolution.
Studies with a focus on North America, Europe or China are recommended to use V4.NA.03, V4.EU.03 and V4.CH.03, available above.
Version information is available below. GWR_V4.GL.03 refer to those datasets that incorporate ground-based observations via a Geographically Weighted Regression, as described in Hammer et al., ES&T 2020. V4.GL.03 refer to those data that do not incorporate ground-based observations, also described in Hammer et al., ES&T 2020.
All Composition PM₂.₅:
Satellite-Derived PM₂.₅, 1998, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 1999, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2000, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2001, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2002, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2003, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2004, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2005, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2006, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2007, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2008, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2009, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2010, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2011, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM2.5, 2012, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2013, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2014, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2015, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2016, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2017, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2018, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2019, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Dust and Sea-Salt Removed:
Satellite-Derived PM₂.₅, 1998, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 1999, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2000, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2001, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2002, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2003, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2004, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2005, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2006, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2007, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2008, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2009, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2010, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2011, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2012, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2013, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2014, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2015, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2016, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2017, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2018, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
Satellite-Derived PM₂.₅, 2019, at 35% RH [µg/m3]
0.05° × 0.05° [.nc] [.asc.zip] [.csv]
0.05° × 0.05° w GWR adjustment [.nc] [.asc.zip] [.csv]
0.01° × 0.01° w GWR adjustment [.nc] [.asc.zip] [.csv]
SatPM₂.₅ data V4.GL.03/V4.GL.04.NoGWR are licensed under CC BY 4.0