1. Remote Sensing of Atmospheric Aerosols and Its Applications in Public Health Research Yang Liu Research Fellow, HSPH

2. PM2.5 Cancels All the Benefits We Get From Health Care? Increased mortality is equivalent to 1-2 years loss in life expectancy Increased mortality is equivalent to 1-2 years loss in life expectancy Reduced cardiovascular and pulmonary functions Reduced cardiovascular and pulmonary functions Current ground monitoring networks are inadequate to support large health studies Current ground monitoring networks are inadequate to support large health studies

3. Remote Sensing Expands Ground Monitoring Networks MISR (Terra) 17.6 km resolution 17.6 km resolution ~30,000 pixels in US ~30,000 pixels in US MODIS (Terra/Aqua) 10 km resolution ~ 90,000 pixels in US GOES 4 km resolution ~ 560,000 pixels in US

4. Satellites Measure PM2.5 Indirectly Aerosol Optical Thickness (AOT): overall aerosol abundance in the air Aerosol Optical Thickness (AOT): overall aerosol abundance in the air Angstrom Exponent: indicator of particle size Angstrom Exponent: indicator of particle size Single Scattering Albedo: the darkness of particles Single Scattering Albedo: the darkness of particles Particle Sphericity Particle Sphericity

5. The Applications of Satellite Data in Public Health Studies Establish the link between AOT and PM2.5 - my poster Establish the link between AOT and PM2.5 - my poster Predict PM2.5 information in the study domain - Chris talk Predict PM2.5 information in the study domain - Chris talk Use predicted PM2.5 information to drive epidemiological studies - work in progress Use predicted PM2.5 information to drive epidemiological studies - work in progress