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Dave Worton Postdoctoral Research Scientist, University of California - Berkeley

Dave Worton Postdoctoral Research Scientist, University of California - Berkeley. Research Interests: Origins and composition of atmospheric carbonaceous aerosols Development of mass spectrometric methods to separate and identify individual organic compounds present in atms aerosols

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Dave Worton Postdoctoral Research Scientist, University of California - Berkeley

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  1. Dave WortonPostdoctoral Research Scientist, University of California - Berkeley Research Interests: Origins and composition of atmospheric carbonaceous aerosols Development of mass spectrometric methods to separate and identify individual organic compounds present in atms aerosols Role of volatile organic carbon (AVOC + BVOC) emissions in formation of secondary organic aerosol (SOA) Gas-particle partitioning of semi-volatile organic carbon species • Since last Workshop: • Continued development of automated in-situThermal desorption Aerosol • Gas chromatograph MS (TAG) instrument with GCxGC separation capability • BEARPEX phase I summer 2007 – field study in Sierra Nevada Mtns

  2. BFRS Terpenes BEIS3.11 Reference Emissions (moles / km2 / hr) Biosphere Effects on AeRosols and Photochemistry EXperiment 2007 10 week study with full suite of gas phase VOC and aerosol measurements Focus on both forest-atmosphere interactions and photochemical processing within an urban plume

  3. 2 towers 4 containers of instruments Lift for HOx gradients Ponderosa Pine Plantation Planted in 1990, canopy height ~7m

  4. Funded Collaboration • Collaboration with Marianne Glasius • Collected filters of PM2.5 during BEARPEX • Polar organics by HPLC-Q-TOF-MS HPLC-Q-TOF, University of Aarhus Hi-Vol sampler

  5. Funded Collaboration Filter Collection Period 3 per day x 5 days large and rapid temperature and relative humidity transition biogenic marker cpds cooler and more humid hot and dry first rain 256

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