Tiny and Toxic: Researchers Track Smaller Air Pollution Particles Across US Skies

Air pollution map reveals health threats from tiny particles

Scientists map PM 1 air pollution across the U.S., revealing urgent health risks, exposure gaps, and regulatory challenges.

Tiny and toxic: Researchers track smaller air pollution particles across US skies

Air pollution causes health problems and is attributable to some 50,000 annual deaths in the United States, but not all air pollutants pack the same punch.

Tiny and Toxic: Researchers Track Smaller Air Pollution Particles Across U.S. Skies

To help understand air pollution health effects, researchers at Washington University in St. Louis quantify how the amount of submicron particles in the air has changed over the past 25 years.

NASA pioneer Dr. Stanley Sander dies at age of 80

Washington DC (UPI) Jun 5, 2025 One of NASA's top ozone depletion and air pollution scientists, credited with enhancing local air pollution measurement tools and dozens of other climate related research advancements, has died at the age of 80. Dr. Stanley Sander was broadly recognized for his work on research on atmospheric chemistry at the Jet Propulsion Laboratory where he started his career in 1971. "Stan ma