GeoDataViewer
Menu
Launch Studio
Theme
Studio Formats
ESRI Shapefile GeoJSON KML / KMZ GPX Tracks kepler.gl JSON AutoCAD DXF AutoCAD DWG CSV / Excel MS Excel GeoParquet GeoPackage SQLite FileGDB FlatGeobuf MapInfo TopoJSON GML OSM PBF Garmin FIT IGC Flight Logs WKT / WKB GeoTIFF / COG
Pages
Datasets Blog Documentation About Measure Distance Measure Area Radius Map Tool How Far Can I Drive Current Location & Weather Elevation Finder World Time Zones OpenClaw Exposure Map
Converters
GeoJSON
GeoJSON to ESRI Shapefile GeoJSON to GeoPackage GeoJSON to PMTiles
ESRI Shapefile
ESRI Shapefile to GeoJSON ESRI Shapefile to GeoPackage ESRI Shapefile to MBTiles
CSV
CSV to GeoJSON CSV to GeoPackage CSV to GPX
GPX
GPX to GeoJSON GPX to GeoPackage GPX to KML
GeoPackage
GeoPackage to GeoJSON GeoPackage to ESRI Shapefile GeoPackage to File Geodatabase
FlatGeobuf
FlatGeobuf to GeoJSON FlatGeobuf to GeoPackage FlatGeobuf to ESRI Shapefile
JSON-FG
JSON-FG to GeoJSON JSON-FG to GeoPackage JSON-FG to ESRI Shapefile
KML
KML to GeoJSON KML to GeoPackage KML to ESRI Shapefile
Mapbox Vector Tiles
Mapbox Vector Tiles to GeoJSON Mapbox Vector Tiles to GeoPackage Mapbox Vector Tiles to ESRI Shapefile
PMTiles
PMTiles to GeoJSON PMTiles to GeoPackage PMTiles to ESRI Shapefile
MBTiles
MBTiles to GeoJSON MBTiles to GeoPackage MBTiles to ESRI Shapefile
AutoCAD DXF
AutoCAD DXF to GeoJSON AutoCAD DXF to GeoPackage AutoCAD DXF to ESRI Shapefile
GML
GML to GeoJSON GML to GeoPackage GML to ESRI Shapefile
Microsoft Excel
Microsoft Excel to GeoJSON Microsoft Excel to GeoPackage Microsoft Excel to CSV
GeoRSS
GeoRSS to GeoJSON GeoRSS to GPX GeoRSS to KML
MapInfo
MapInfo to GeoJSON MapInfo to GeoPackage MapInfo to ESRI Shapefile
File Geodatabase
File Geodatabase to GeoJSON File Geodatabase to GeoPackage File Geodatabase to ESRI Shapefile
SpatiaLite / SQLite
SpatiaLite / SQLite to GeoJSON SpatiaLite / SQLite to GeoPackage SpatiaLite / SQLite to ESRI Shapefile

Air Quality & Atmospheric Data

Global PM2.5 Surface Concentration (WashU)

Washington University's Global PM2.5 provides annual 1km surface PM2.5 estimates globally from 2000-present combining satellite, model, and monitor data.

Format GeoTIFF / NetCDF
Coverage Global
Resolution ~1km (0.01°)
License Free for research and educational use
Update Annual
Download source Open official source

Format

GeoTIFF / NetCDF

Geometry

Raster (PM2.5 concentration)

Coverage

Global

Resolution

~1km (0.01°)

About this dataset

Washington University's annual global PM2.5 surface concentration estimates at 1km resolution from 2000-present.

The Global PM2.5 Surface Concentration dataset from Washington University in St. Louis provides annual estimates of ground-level fine particulate matter (PM2.5) at approximately 1km resolution globally from 2000 to present. It combines satellite aerosol optical depth (AOD) retrievals from MODIS, MISR, and SeaWiFS with chemical transport model simulations and ground monitor data.

Air quality monitoring Health impact assessment Environmental epidemiology Policy analysis

How to download

  1. 1 Open the WashU PM2.5 data page.
  2. 2 Select the desired year.
  3. 3 Download the global GeoTIFF PM2.5 surface concentration raster.
  4. 4 Open in GIS and classify for health exposure analysis.

WashU PM2.5 data page

Download annual global GeoTIFFs

→

WHO Air Quality Database

WHO air quality guidelines and statistics

→

FAQ

What is PM2.5?

PM2.5 refers to particulate matter with diameter ≤2.5 micrometers, which can penetrate deep into the lungs and enter the bloodstream. It is the most health-relevant air pollutant.

How accurate are the satellite-based estimates?

The dataset has cross-validated R² of 0.8-0.9 when compared with ground monitors. Accuracy varies by region, with better performance in regions with dense monitoring networks.