Department of Chemistry and Biochemistry, University of Colorado at Boulder, 215 UCB, Boulder, CO 80309 United States ; Cooperative Institute for Research in the Environmental Sciences (CIRES), University of Colorado at Boulder, 216 UCB, Boulder, CO 80309 United States
Cooperative Institute for Research in the Environmental Sciences (CIRES), University of Colorado at Boulder, 216 UCB, Boulder, CO 80309 United States ; Program in Atmospheric and Oceanic Sciences (PAOS), University of Colorado at Boulder, 311 UCB, Boulder, CO 80309 United States
Cooperative Institute for Research in the Environmental Sciences (CIRES), University of Colorado at Boulder, 216 UCB, Boulder, CO 80309 United States
Department of Environmental Sciences, University of California - Riverside, Air Pollution Research Center, Riverside, CA 92521 United States
Aerodyne Research Inc., 45 Manning Rd., Billerica, MA 01821 United States
Department of Chemistry and Biochemistry, University of Colorado at Boulder, 215 UCB, Boulder, CO 80309 United States ; Cooperative Institute for Research in the Environmental Sciences (CIRES), University of Colorado at Boulder, 216 UCB, Boulder, CO 80309 United States