Separation of brown carbon from black carbon for IMPROVE and Chemical Speciation Network PM2.5 samples.
Judith C ChowJohn G WatsonMark C GreenXiaoliang WangL-W Antony ChenDana L TrimblePaul M CropperSteven D KohlSteven B GronstalPublished in: Journal of the Air & Waste Management Association (1995) (2019)
The inclusion of seven wavelengths in thermal/optical carbon analysis of speciated PM2.5 (particulate matter with an aerodynamic diameter ≤2.5 μm) samples allows contributions from biomass burning and secondary organic aerosols to be estimated. This separation is useful for evaluating control strategy effectiveness, identifying exceptional events, and determining natural visibility conditions.