Air Impacts by FrancisMaloney

VIEWS: 14 PAGES: 15

									Air Impacts - Creating Decision
Criteria


2005 IEP
Provincial IEP Committee
Meeting #4
May 31/ June 1, 2005
           Review of Previous Discussions


                                     Human
                      Local          Health
                      Impacts
      Air Emissions
      From                           Financial
      Resource
      Options         Global         Global
                      Impacts        Warming



May 31/June 1, 2005         Page 2
           Review of Previous Discussions

     • Committee wanted to see emissions for:
          • NOx
          • SOx
          • Particulates
          • Green House Gas Emissions
     • A smaller number was also interested in emissions
       from the following:
          • Mercury
          • VOCs


May 31/June 1, 2005                Page 3
           ROR Report - Air Impacts




May 31/June 1, 2005     Page 4
           Impact of Emissions on Human
           Health

• Provincial Committee also expressed
  some interest in extending emissions
  statistics further, by looking at the
  impacts on surrounding populations
• Project team committed to looking into
  population weighting scheme from ‘95
  IEP.


May 31/June 1, 2005     Page 5
           Impact of Emissions on Human
           Health - cont’d
• Straight Population Weighting
     – not represented in “best practices” for air
       emissions impacts
     – potentially confuses impacts of similarly sized
       towns with different airshed charactersitics (e.g.
       Kamloops vs. Nanaimo)
• Next Steps
     – a work in progress if we want to capture:
          • air quality thresholds, and
          • number of people in “plume” of emissions


May 31/June 1, 2005                 Page 6
           Review of Previous Discussions

                                       Human
                        Local          Health
                        Impacts
      Air Emissions
      From                             Financial
      Resource
      Options           Global         Global
                        Impacts        Warming



    Upstream and downstream air emissions

May 31/June 1, 2005           Page 7
           Upstream air emissions - cont’d


• Stakeholders expressed particular
  interest in coal, natural gas and
  biomass impacts from upstream air
  emissions.
• BCH project team commissioned a
  study to look at: coal, natural gas, small
  hydro and wind resource options.


May 31/June 1, 2005      Page 8
           Upstream air emissions

• Some Caveats
     – difficult to establish clear link between
       resource options and upstream impacts
     – difficult to set boundaries for analysis
     – reliable data do not yet exist for all impacts
       of interest, and accepted methodology is
       yet to be developed (proxy data used)
     – impacts may have significant differences
       across projects, making a generic
       description difficult
May 31/June 1, 2005          Page 9
           Upstream air emissions - cont’d




May 31/June 1, 2005      Page 10
           Upstream Air Emissions - cont’d


• Upstream Air Emission Estimates
     – Natural Gas - 130,000 t/GWh (CO2e)
     – Coal - 55,000 t/GWh (CO2e)
     – these numbers are rounded
     – check units with report?
     – Can be separated out and reported
       individually


May 31/June 1, 2005      Page 11
           Upstream air emissions - cont’d




May 31/June 1, 2005      Page 12
           Upstream air emissions - cont’d




May 31/June 1, 2005      Page 13
           Upstream air emissions - cont’d




May 31/June 1, 2005      Page 14
      Upstream air emissions - next
      steps
• Upstream air impacts are still a work in
  progress.
   – Will inform a coal vs. natural gas tradeoff
     discussion
      • information available for GHGs
      • information still being developed for local
        emissions
      – Will not be that useful for a thermal vs.
         non-thermal discussion
      – Project team looks to PIEPC for advice and
         will keep Committee informed of progress.
May 31/June 1, 2005          Page 15

								
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