Airborne particle samplers (IMAGE) Proceedings of the National Academy of Sciences Caption Airborne particle samplers at the Marylebone Road station (>80,000 vehicles/day) in central London (London Air Quality Network). Credit Image credit: Eléonore Resongles and Volker Dietze. Usage Restrictions None License Licensed content 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.