We all share the same air 🌍 In our decades-long quest for cleaner air, we’ve combined satellites, ground sensors, and data models to help us understand the impact of air pollution on human health and design solutions. #WorldCleanAirDay The Clean Air Act of 1970 established legislation that requires the tracking of nitrogen dioxide, ground-level ozone, carbon monoxide, particulate matter, sulfur dioxide, and lead – all of which our satellite instruments measure except lead. Get the details: http

Our planet is nestled in the center of two doughnut-shaped regions of powerful, dynamic radiation: the Van Allen belts, where high-energy particles are trapped by Earth’s magnetic field. Depending on incoming radiation from the sun, they can gain or lose energetic particles. Learn more: http://go.nasa.gov/2dfpiHs Watch: http://go.nasa.gov/2dDnNFf | NASA - National Aeronautics and Space Administration