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Published byJoanna Atkinson Modified over 9 years ago
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History of St. Louis Air Pollution NASA Air Quality Applied Sciences Team June 2, 2015
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Presentation Overview St. Louis Air Quality Gateway’s Ozone Data Sharing Project Trends
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St. Louis Ozone History YearAction 1991Moderate Non-Attainment for 1979 1-Hour Ozone Standard 2002Designated Attainment for 1979 1-Hour Ozone Standard 2004Moderate Non-Attainment for 1997 8-Hour Ozone Standard, including Jersey County IL June 2012Illinois Counties Designated Attainment for 1997 8-Hour Ozone Standard July 2012Marginal Non-Attainment for 2008 8-Hour Ozone Standard February 2015 Missouri Counties Designated Attainment for 1997 8-Hour Ozone Standard
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St. Louis PM 2.5 History YearAction 2005Non-Attainment for 1997 Annual PM 2.5 Standard, including Baldwin Township, Randolph County IL 2009Attainment 1997 24-Hour PM 2.5 Standard 2015Unclassifiable for 2012 Annual PM 2.5 Standard
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St. Louis (MO-IL) Non-Attainment Areas Ozone 1997 PM 2.5
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2008 Ozone Standard 75 parts per billion (ppb) Exceedance is when an 8-hour average of values at a monitor is calculated to be > 75 ppb on any given day Violation is when a 3-year average of the 4 th highest annual average at a monitor is calculated to be > 75 ppb
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Ozone Data Sharing Project Ozone Season - April 1 to October 31 East-West Gateway acts as a clearinghouse for ozone data Initial quality assurance screening Prepare reports
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2014 Ozone Season 2 Ozone Days and 4 Exceedances August 4 – West Alton MO – Alton IL – Wood River IL September 28 – Arnold West MO
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Summer Weather Facts Days with Temperatures Years Average Number of Days per Year 201220132014 90 0 or greater60373436 100 0 or greater21212 National Weather Service
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3 Yr Average of 4 th Highest 8-Hour Ozone Averages 1995-2014
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3 Year Average 4 th Highest 8-Hr Ozone Average Low RVP Gas Decommission Stage II Vapor Recovery Decentralized I/M OBD Centralized I/M IM240 Reformulated Gas Transportation Control Measures 1989 Stage II Vapor Recovery 1984 Decentralized I/M tailpipe
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Daily Vehicle Miles Traveled (VMT) St. Louis Region 1982-2014
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Projected Vehicle Emissions
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Trends Moderate to Marginal – July 2012 Anticipate attainment in 2015 Revised ozone standard October 2015
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Then and Now October 28, 1938 looking east along Pine from 200 block of N. Tucker St. Louis Post-Dispatch May 27, 2015 looking east from SSM St. Mary’s Health Center in Richmond Heights MDNR Visual Air Pollution Camera
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For Additional Information On-line Air Quality Resource Center www.ewgateway.org/environment/aq/aq.htm August 2014 AQI Calendar
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Questions? Michael Coulson, PE Manager, Environmental Services East-West Gateway Council of Governments Air Quality Resource Center www.ewgateway.org
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