Beaver Stadium June 2023 (IMAGE) Penn State Caption Beaver Stadium in June 2023 when smoke from Canadian wildfires blanketed skies across the northeastern United States. A Penn State-led research team used data from low-cost sensors, artificial intelligence and mobility data to improve models that assess human exposure to fine particulate matter (PM 2.5), tiny particles in smoke and other forms of air pollution that can pose health dangers. Public health officials can use the models to develop strategies to reduce exposure to unhealthy air quality, according to the researchers. Credit Patrick Mansell / Penn State Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.