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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

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
b iosphere e ffects on a e r osols and p hotochemistry ex periment 2007

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

slide3

2 towers

4 containers of instruments

Lift for HOx gradients

Ponderosa Pine Plantation

Planted in 1990, canopy height ~7m

funded collaboration
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

funded collaboration1
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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