Rethinking the distinction between black and brown carbon

Gabriela Anat Adler1,2, Alessandro Franchin2,3, Kara Diane Lamb2,3, Katherine Manfred1,2, Ann M Middlebrook2, Joshua Peter Schwarz2, Nick Wagner2,3, Rebecca A Washenfelder2,3, Caroline Womack2 and Daniel M Murphy2, (1)NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO, United States, (2)NOAA ESRL Chemical Sciences Division, Boulder, CO, United States, (3)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States