Fig. 2From: Associations between long-term exposures to airborne PM2.5 components and mortality in Massachusetts: mixture analysis explorationThe weights assigned to each PM2.5 source group from WQS models on identified source groups. (a): all non-accidental mortality; (b): cardiovascular diseases related mortality; (c): respiratory diseases related mortality; red dash line: reciprocal of the number of PM2.5 components in the mixtureBack to article page