Reasonable Progress Analysis
Transcript of Reasonable Progress Analysis
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Reasonable Progress Analysis
Many Glaciers, Glacier National ParkPat Brewer, National Park Service
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What pollutants are contributing to haze on 20% most impaired days at IMPROVE monitors?
36 Mm-1
16 Mm-1 50 Mm-1
50 Mm-1
http://views.cira.colostate.edu/fed/
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40 Mm-1
16 Mm-1130 Mm-1
30 Mm-1
http://views.cira.colostate.edu/fed/
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Reasonable Progress Analysis
• What pollutants are important at Class I areas?• IMPROVE monitoring data
• What sources of those pollutants? • Controllable vs uncontrollable: define using source apportionment model
• State inventories: identify state/local/federal authority
• Prioritize source sectors to evaluate
• Consider 4 factors: cost, time to comply, remaining useful life, energy and non-air impacts
• Consult early and often: technical approach and policy options
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120,000 tpy
http://views.cira.colostate.edu/tsdw/
2011 and 2025 Western Air Quality Study SO2 Inventory
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800,000 tpy
http://views.cira.colostate.edu/tsdw/
2011 and 2025 Western Air Quality Study NOx Inventory
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Project Visibility Progress
• Model Base Year
• States conduct 4 factor analyses and define planned emissions reductions for 2021 RHR SIP
• Model cumulative regional emissions by 2028 to set Reasonable Progress Goals
• Consult / interpret
? IMPROVE data in Base Year
Modeled 2028
(Measured)
(Estimated)
20
28
(Estimated)
?
-- IMPROVE data