Southeast Asian biomass-burning influence on PM2.5-bound PAHs and toxicity-equivalent burden across receptors in Southwest China.
Biomass burning can transport hazardous organic aerosols over long distances, yet its influence on the toxicity-equivalent burden of receptor-site PM2.5-bound PAHs remains poorly constrained. We measured 16 priority PAHs at two border sites, one mountain-background site, and one urban site in Southwest China across fou...