A new scientific study by scientists from Emory University, NASA’s Jet Propulsion Laboratory, and the California Air Resources Board uses satellite technology to provide evidence that California’s clean air programs are reducing emissions of fine particle pollution throughout the state.
The study analyzes satellite data to determine the 15-year trend of fine particle pollution. It shows clean air programs are succeeding in reducing air pollution in both urban and rural locations, including disadvantaged communities, and is the first of its kind to use spatially comprehensive satellite data.
The data were collected using a Multi-angle Imaging SpectroRadiometer (MISR) on NASA’s Terra satellite, complementing air quality data collected on the ground. Because most air quality monitors are placed in urban areas, this satellite technology fills spatial and temporal gaps in the data. According to the state, the study demonstrates the success of California’s air programs, regulations, enforcement efforts, and clean air plans in regions with the greatest air quality challenges: Southern California and the southern Central Valley.
For more information, contact Melanie Turner at (916) 322-2990.