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Global Annual PM2.5 Grids from MODIS, MISR and SeaWiFS Aerosol Optical Depth (AOD), v1 (1998 – 2012)

Satellite-Derived Environmental Indicators

To provide a continuous surface of concentrations (micrograms per cubic meter) of fine particulate matter of 2.5 micrometers or smaller (PM2.5) for health and environmental research.

Environmental Performance Index, 2014 Release (2002 – 2014)

Environmental Performance Index (EPI)

To provide quantitative metrics for evaluating a country's environmental performance in different policy categories relative to clearly defined targets.

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