Human cell mutagens in respirable airborne particles from the northeastern United States. 2. Quantification of mutagens and other organic compounds.

Few reports have characterized mutagenic compounds in respirable airborne particles (<2.5 micrometers in diameter; PM2.5) collected at different sites on a regional scale (hundreds of km).

Human-cell mutagens in respirable airborne particles in the northeastern United States. 1. Mutagenicity of fractionated samples.

Few studies have characterized the regional scale (300-500 km) variability of the mutagenicity of respirable airborne particles (PM2.5). We previously collected 24-h PM2.