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Substituting Sulfate for Sulfur. Impact on the RHR metrics and control strategies Presented at the 2006 IMPROVE Steering Committee Meeting by B.A. Schichtel. Sulfur/Sulfate on Best & Worst Haze Days. Average 3*S/SO4 on worst 20% haze days = 1 Average 3*S/SO4 on best 20% haze days = 1.05.

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Substituting sulfate for sulfur l.jpg

Substituting Sulfate for Sulfur

Impact on the RHR metrics and control strategies

Presented at the 2006 IMPROVE Steering Committee Meeting by B.A. Schichtel


Sulfur sulfate on best worst haze days l.jpg
Sulfur/Sulfate on Best & Worst Haze Days

  • Average 3*S/SO4 on worst 20% haze days = 1

  • Average 3*S/SO4 on best 20% haze days = 1.05

Alaska






Ammonium sulfate s contribution to natural background light extinction l.jpg
Ammonium Sulfate’s contribution to Natural Background Light Extinction

  • 2-15% of natural haze on the 20% haziest days is due to sulfate

  • Sulfate replacement will have minimal impact on natural haze


Change in control strategy to meet new 2018 progress goal l.jpg
Change in Control Strategy to Meet New 2018 Progress Goal Light Extinction

  • To meet the NEW 2018 progress goal, anthropogenic contributions to bext need to be reduced by 0 to 0.8% more at 60 sites and 0 – 0.3% less at 50 sites.

Need to reduce SO2 emissions by Additional 0.6% to attain 2018 progress goal at Shenandoah


Conclusion l.jpg

Conclusion Light Extinction

Substituting sulfate for sulfur in the RHR will have little effect on control strategies to meet the 2018 progress goals – (I think)


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