Light-absorbing properties of ambient black carbon and brown carbon from fossil fuel and biomass burning sources

- R. M. Healy1,2, J. M. Wang1, C.-H. Jeong1, A. K. Y. Lee3, M. D. Willis3, E. Jaroudi1, N. Zimmerman1, N. Hilker1, M. Murphy1, S. Eckhardt4, A. Stohl4, J. P. D. Abbatt3, J. C. Wenger2, and G. J. Evans1