Project Description

Scientific article about a puzzle of new particle formation (NPF) in polluted urban air just published in Science magazine. “Atmospheric new particle formation from sulfuric acid and amines in a Chinese megacity” by Yao et al., 2018 investigates NPF in urban Shanghai, China and describe the conditions that make this process possible. The findings will help inform policy decisions about how to reduce particulate matter pollution in these types of environments. They found that NPF observations in Shanghai are consistent with sulfuric acid-dimethylamine-water nucleation studied in CLOUD chamber including formation rates and sulfuric acid cluster concentration. In addition, they observed neutral sulfuric acid-dimethylamine clusters during NPF. As a result, they proposed that this molecular pathway is responsible for initial steps of NPF in an urban environment in China. dated 25.Jul.2018