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Canadian Update of Georgia Basin - Puget Sound Airshed Characterization Report

Canadian Update of Georgia Basin - Puget Sound Airshed Characterization Report. Roxanne Vingarzan, Environment Canada IAS Meeting September 23-25, 2009. AQ Standards and Emissions. Standards/Objectives New BC PM2.5 objectives 25 ug/m3 (24 hr avg) 8 ug/m3 (annual)

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Canadian Update of Georgia Basin - Puget Sound Airshed Characterization Report

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  1. Canadian Update of Georgia Basin - Puget Sound Airshed Characterization Report Roxanne Vingarzan, Environment Canada IAS Meeting September 23-25, 2009

  2. AQ Standards and Emissions Standards/Objectives • New BC PM2.5 objectives • 25 ug/m3 (24 hr avg) • 8 ug/m3 (annual) • 6 ug/m3 (voluntary) • MV CAC objectives - not in current report Emissions • New Metro Vancouver 2005 Air Emission Inventory • New MV Forecast & Backcast Projections to 2030

  3. Ambient Air Quality Ozone • Updated ozone trends • Analysis of VOC/NOx ratios and reactivity rates in LFV Particulate Matter • PM2.5 trends • Results of Pacific 2001 Study • PM transport, composition, processes, source characterization • Source Receptor Analysis - PMF (Abbotsford and Bby South) Visibility • Spatial and temporal patterns in Bscat, Bext & extinction attribution (LFV) • Trends in frequency of low visibility due to smoke and haze at Vancouver and Abbotsford airports • Statistical modelling of impact of PM2.5 reductions on Bext and visual range

  4. Special Studies & Modelling Special Studies • NAESI Ammonia Study in LFV – sensitivity of PM2.5 to NH3 reductions • Christopher Point – transboundary transport • Burrard Inlet Study – ambient measurements and modelling • MV special studies Photochemical Modelling • New emission reduction scenarios: • Ammonia reductions on PM2.5 and visibility • MV AQMP 2015 emission reductions • Marine ECA-associated reductions (NOx and SO2) on O3 and PM2.5

  5. Atmospheric Deposition • Wet/dry depositon rates for 6 sites in GB • CMAQ deposition maps for S and N for SW BC and Wash state (4 km resolution) • PCB and PBDE deposition rates over the Strait of Georgia (Noel et al) • Lichen/Moss deposition study in GB (P. Shaw, EC) • Critical load exceedence maps of S and N • E.g. upland forest soils (AURAMS)

  6. Social and Economic Impacts • Health impacts of exposure to PM2.5 (UBC studies) • AQBAT study of economic benefits of visibility improvements associated with PM2.5 declines (EC/HC) • Economic impacts of poor visibility on LFV residents (EC) Potential updates on: • Impacts on Agriculture (Agr. Canada, BC Min Agr.) • Impacts of Climate Change (EC & other agencies)

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