1 / 6

David Oram University of East Anglia, UK Relevant areas of expertise

David Oram University of East Anglia, UK Relevant areas of expertise GC-MS measurements of halocarbons (primarily canister sampling) Cape Grim, Mace Head CARIBIC Research aircraft (BAe-146) Also GC-ECD and GC-FID experience PTR-MS measurements of selected VOC and OVOCs

hope-munoz
Download Presentation

David Oram University of East Anglia, UK Relevant areas of expertise

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. David Oram University of East Anglia, UK Relevant areas of expertise • GC-MS measurements of halocarbons (primarily canister sampling) • Cape Grim, Mace Head • CARIBIC • Research aircraft (BAe-146) • Also GC-ECD and GC-FID experience • PTR-MS measurements of selected VOC and OVOCs • Weybourne Observatory (semi-continuous since late 2002) • Research aircraft (BAe-146) • Acetone, methanol, aromatics, isoprene, terpenes + others WEYBOURNE Atmospheric Observatory • Established 1992/3 (West Beckham 1989-91) • UEA NMHC record for 1989-1995 (canisters, GC-FID) • UEA took part in AMOHA, NOMHICE • Partner in EU HANSA network • Semi-continuous PTR-MS data since late 2002 • New VOC instrument planned for 2006 • Full-time manager (B. Bandy) • Supported by NERC-UFAM

  2. Current Instrumentation at WAO • NO/NO2/NOy (Annox, Teco 42S) • Ozone • SO2 • CO • H2 • HCHO • CN • PTRMS • WAO Met: AWS • LAN/Data Network • Remote Access Not continuous • H2O2 • PAN • Canister sampling New Instrumentation (2006) • CO2 • Vertical sounder/profiler • GC ECD/FID (CH4 and N2O) • GC FID/FID (VOC/oVOC)

  3. Acetone at Weybourne (ppb) January May - June October

  4. Toluene at Weybourne (ppb) January May - June October

  5. Questions/Comments • What was outcome of previous (1995) VOC meeting ? • How have measurements/technology improved since 1995 ? • NOMHICE, AMOHA, (others ?) • Summary of recommendations Proposed compounds • Need GC-MS (or ECD?) for halocarbons • CH3CN by FID ? • How to measure CH2O ? Standards • Do world standards exist for TCE/PCE, CH3CN, oxygenates ? • Are gas phase OVOC standards currently good enough ? Canister sampling • Which compounds are stable? • Oxygenates, terpenes ? • Which surface is best? • SS, silcosteel, glass (humidity effects) • Further testing may be required Safety and legality • Canisters/cylinders used for sampling and standards need to conform to latest regulations. • Transportable pressurised containers • US DOT or EU pi mark not globally accepted ?

More Related