NASA and UMBC issued a joint press release August 2nd announcing the first measurement-based estimate of the amount and composition of tiny airborne particles that arrive in the air over North America each year. Co-authored by Lorraine Remer, senior research scientist and Tianle Yuan, research associate in the climate and radiation laboratory of UMBC’s Joint Center for Earth Systems Technology (JCET), along with NASA and University of Maryland, College park scientists the study determined that it was dust and not pollution which constituted the main ingredient in small airborne particles which arrive in the air over North America every year. The results published …