1. Using synthetic tracers as a proxy for summertime PM2.5 air quality over the Northeastern United States in physical climate models Fiore, Arlene M.; Fang, Yuanyuan; Lamarque, Jean-François; Horowitz, Larry W.; Lin, Meiyun 2013 Articles Atmospheric chemistry--AnalysisAerosols--Remote sensingClimatic changes--Mathematical modelsClimatic changes--ResearchEnvironmental sciences