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Technical Support Documents
2024
PRE-HEARING DRAFT Exceptional Events Demonstration to Support Attainment Designation Recommendations for the 2024 Annual PM2.5 National Ambient Air Quality Standard (NAAQS) for Mecklenburg and Davidson Counties, North Carolina (June – July 2023 Canadian Wildfire Smoke Impacts)
December 2024
Ohio’s Exceptional Events Demonstration for 2023 Wildfire Smoke-Driven PM2.5 Episodes in the Toledo, OH Metropolitan Statistical Area
December 2024
Ohio's Exceptional Events Demonstration for 2023 PM2.5 Episodes in the Canton-Massillon, OH Metropolitan Statistical Area
DRAFT November 2024
2021-2023 Ozone and PM2.5 Design Value Maps Presentation Prepared by Alpine Geophysics, LLC
November 2024
2023 O3 and PM DVs for Mapping.xls prepared by Alpine Geophysics, LLC in support of Design Value Maps Presentation
November 2024
PM Source Apportionment Modeling for PM NAAQS Implementation Southeast Michigan PM2.5 Workshop by Alpine Geophysics, LLC
November 21, 2024
PM Source Apportionment Modeling for PM NAAQS Implementation Greg Stella, Alpine Geophysics LLC,
CAPCA Fall Meeting
October 24, 2024
Louisiana - Expectional Events Demonstration Canadian Wildfire Smoke (PM2.5): Oct 4-5 , 2023 Proposed October 18, 2024
Louisiana - Exceptional Events Demonstration Saharan Dust Outbreak (PM2.5): June 12-16, 2022 Proposed October 18, 2024
West Virginia - Exceptional Events Demonstration for an Exceedance of 2024 Annual PM2.5 NAAQS at Martinsburg, West Virginia on June 29, 2023 Due to Smoke from Canadian Wildfires
Proposed: October 15, 2024
Wisconsin - Exceptional Event Demonstration - 2023 Late June Quebec Wildfires and Their Impacts on Fine Particulate Matter Concentrations in Southeast Wisconsin (Event Dates: June 26-30, 2023)
DRAFT August 2024
PM Source Apportionment Modeling for PM NAAQS Implementation Gregory Stella, Alpine Geophysics LLC, presentation at AAPCA Fall Meeting
August 29, 2024
Particulate Source Apportionment Technology Analysis of PM2.5 for Multiple Domains and Categories prepared by Alpine Geophysics
July 2024
Exceptional Events Demonstration for the Greater Connecticut Nonattainment Area for the 2023 Ozone Season (Event Dates: April 13-14, 2023, June 30 - July 1, 2023, and July 12, 2023); FINAL June 2024
Appendix B Particulate Source Apportionment Technology Analysis of PM2.5 for Multiple Domains and Categories
July 2024
Florida Exceptional Events Demonstration October 2-4, 2023, Canadian Wildfire Smoke Event (PM2.5)
Draft May 9, 2024
Pennsylvania - Ozone Exceptional Events Analysis: June 1-2, 2023
PROPOSED April 2024
New Jersey - Exceptional Event Demonstration Analysis for Ozone April 13, 2023, June 2, 2023, June 29 and 30, 2023
DRAFT March 2024
Pennsylvania - Ozone Exceptional Event Analysis: June 29-30, 2023
PROPOSED April 2024
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