2017 Ozone Season Final Summary for the Kansas City Region

Transcription

1 Summary 2017 Ozone Season Final Summary for the Kansas City Region From in the Air Quality Maintenance Area of the Kansas City region there were four Ozone Alerts [June 9, July 17, July 18, and July 25]. During this same period, eight-hour ozone readings exceeded the 70 part-per-billion (ppb) standard seven times [May 26, June 5, June 8, July 16, July 17, July 25, and August 19]. Table 1 shows the number of each type of forecast and the number of days monitored in each category. Table 1. Forecast and Monitor Results Green Yellow Orange Red Actual Forecasted Implementation of the 2015 Ozone National Ambient Air Quality Standard On October 31, 2015, the U.S. Environmental Protection Agency issued a revised national primary standard for ground-level ozone. The health-based standard of 70 ppb averaged over eight hours replaced the standard of 75 ppb. Under this rulemaking, EPA also provided an updated Air Quality Index (AQI) a public information tool that associates colors and health messages with ranges of air pollutant concentrations to reflect the standard. Table 2 shows the ozone concentrations associated with each AQI color under the 2015 standard Monitor Map Table 2. Air Quality Index under the 2015 Ozone Standard Category AQI hour ozone (ppb) Good (Green) Moderate (Yellow) Unhealthy for Sensitive Groups (Orange) Unhealthy (Red) Very Unhealthy (Purple) Hazardous (Maroon) > 200 Ozone measurements defining the air quality for the Greater Kansas City Air Quality Maintenance area are made at six monitors. Two additional nearby monitors at Trimble and Leavenworth provide useful forecasting information, and two distant monitors at Chanute and El Dorado offer some forecasting guidance on how pollution is moving into and out of our region. Map 1, on the next page, shows the location of all current nearby monitors and their current design value.

2 MISSOURI Air Quality Monitoring Stations Trimble P L A T T E 67 KANSAS Watkins Mill Leavenworth 60 K C I Rocky Creek 69 C L A Y Liberty 66 R A Y 65 L E A V E N W O R T H J O H N S O N W Y A N D O T T E Heritage Park 59 M I A M I JFK 62 KANSAS Richards Gebaur-South MISSOURI 63 C A S S J A C K S O N Miles City boundary and highway data created by MARC and city and county governments; all other data provided by ESRI and/or Tele Atlas North America, Inc. October 2017 in area monitor out of area monitor Number = current Design. Air Quality Maintenance Area Note: Monitor stations not shown above - El Dorado Springs & Chanute

3 2017 Ozone Data & SkyCasts Appendix A, at the end of this report, summarizes the SkyCasts and highest daily eight-hour monitor ozone readings for the 2017 ozone season. It includes all days that were forecasted to be a yellow or Ozone Alert day or had a maximum eight-hour ozone reading greater than or equal to 55 ppb. Green SkyCast days with maximum eight-hour ozone values less than 55 ppb days that were accurately forecasted to be green will not be listed. Following the daily maximum data, Appendix B focuses in on those days where area monitors recorded eighthour peak values exceeding the 70 ppb standard and the dates on which the exceedances occurred. This table shows both pollution levels and the pervasiveness of exceedances in the region on that given day. Figure 1 below lists the number of days each monitor recorded eight-hour peak values exceeding the 70 ppb standard. The figure, as usual, tends to highlight the general tendency of the highest areas of pollution to occur at the monitors north and east of the Greater Kansas City metropolitan area. 5 Figure 1. Total Days of Exceedance 0 Kansas City Ozone Design s, An exceedance of the eight-hour ozone standard at a monitored location does not necessarily result in a violating monitor. Compliance with the eight-hour ozone standard is based on the three-year average of the fourth-highest ozone reading from each monitor. Given the nature of its importance, this critical value called the Design, is shown on Map 1 along with the region s ozone monitors. Appendix C contains both the final fourth-high eight-hour readings and the design values observed for Table 3 below displays the fourth-high eight-hour readings that would have caused a violation of the design value during Table Fourth-High s That Would Trigger a Violation (70-ppb is the current standard) Missouri 8-Hr (ppb) Kansas 8-Hr (ppb) Design Level 70 NAAQS Level 70 Liberty 85 JFK (KCK) 86 Watkins Mill 83 Heritage Park 94 Rocky Creek 76 Leavenworth 92 Richards Gebauer 87 Trimble 77 *This is the current NAAQS level under the 2015 eight-hour standard

4 Under the 2015 eight-hour standard, violations occur when the three-year average is 71 ppb or higher. Figure 2 shows the trend line of design values, or three-year averages of the fourth-high eight-hour readings, along with the ozone standards established at different time periods from 1999 to Figure 2. Maximum Monitor Design s * (2017* data [not quality assured]) 3 Yr Avg Design s Design (ppb) Ozone Air Quality Standard * Appendix A. Summary of 2017 SkyCasts and imum Eight-hour Ozone s 8-Hr SkyCast 8-Hr SkyCast March 5/6 60 Richards Gebauer Yellow 3/4 61 Watkins Mill Green 5/7 63 Rocky Creek Yellow 3/8 57 Richards Gebauer Green 5/8 70 Rocky Creek Yellow 3/20 62 Richards Gebauer Green 5/9 61 Liberty Yellow 3/23 55 Rocky Creek Green 5/10 45 April 5/12 58 Watkins Mill Richards Gebauer Liberty Yellow Green 4/8 58 Rocky Creek Green 5/13 65 Rocky Creek Yellow 4/9 47 Rocky Creek Yellow 5/14 58 Rocky Creek Yellow 4/13 60 Rocky Creek Green 5/15 64 Rocky Creek Yellow 4/23 61 JFK Yellow 5/16 57 Rocky Creek Yellow 4/24 59 Rocky Creek Green 5/26 75 Richards Gebauer Yellow 4/25 54 Rocky Creek Yellow 5/30 56 Liberty Green May 5/31 50 JFK Yellow 5/5 59 Rocky Creek Green Continued on next page Readings in bold represent eight-hour peak concentrations above the 70 ppb standard.

5 Appendix A. Summary of 2017 SkyCasts and imum Eight-hour Ozone s 8-Hr SkyCast 8-Hr SkyCast June 7/11 53 Rocky Creek Yellow 6/1 59 Rocky Creek Green 7/13 52 JFK Yellow 6/2 61 Rocky Creek Yellow 7/14 55 Heritage Park Green 6/3 59 Rocky Creek Yellow 7/15 59 JFK Yellow 6/4 40 Rocky Creek Yellow 7/16 73 Liberty Yellow 6/5 71 Richards Gebauer Yellow 7/17 79 Liberty Orange 6/6 53 Richards Gebauer Yellow 7/18 61 Rocky Creek Orange 6/7 60 JFK Green 7/19 61 Rocky Creek Yellow 6/8 72 Liberty Yellow 7/20 60 Watkins Mill Yellow 6/9 69 Liberty Orange 7/21 55 Watkins Mill Yellow 6/10 62 Rocky Creek Yellow 7/22 61 Liberty Yellow 6/11 55 Rocky Creek Yellow 7/23 62 Richards Gebauer Yellow 6/12 51 Rocky Creek Yellow 7/24 57 JFK Yellow 6/15 63 Watkins Mill Yellow 7/25 76 Rocky Creek Orange 6/16 62 Rocky Creek Yellow 7/26 37 Liberty Yellow 6/17 46 Liberty Yellow 7/31 41 Richards Gebauer Yellow 6/20 59 Liberty Yellow August 8/1 57 Richards Gebauer Yellow 6/21 56 Liberty Green 6/22 44 Rocky Creek Yellow 8/2 56 Richards Gebauer Yellow July 8/10 59 Liberty Yellow 7/1 53 Richards Gebauer Yellow 8/11 50 Richards Gebauer Yellow 7/2 59 Watkins Mill Yellow 8/14 43 Rocky Creek Yellow 7/3 61 Rocky Creek Yellow 8/15 51 Rocky Creek Yellow 7/4 37 Rocky Creek Yellow 8/19 71 JFK Yellow 7/6 60 Liberty Yellow 8/20 46 JFK Yellow 7/7 58 Richards Gebauer Yellow 8/21 38 Richards Gebauer Yellow 7/8 59 Rocky Creek Yellow 8/23 50 Heritage Park Yellow 7/9 61 Watkins Mill Yellow 8/26 58 Rocky Creek Yellow 7/10 53 Liberty Yellow Continued on next page Readings in bold represent eight-hour peak concentrations above the 70 ppb standard.

6 Appendix A. Summary of 2017 SkyCasts and imum Eight-hour Ozone s 8-Hr SkyCast 8-Hr SkyCast September 9/15 61 Rocky Creek Yellow 9/3 61 JFK Yellow 9/16 47 Rocky Creek Yellow 9/4 48 Richards Gebauer Yellow 9/21 40 Rocky Creek Yellow 9/8 66 Liberty Yellow 9/23 54 Rocky Creek Yellow 9/9 62 Rocky Creek Yellow 9/24 52 Rocky Creek Yellow 9/10 59 Rocky Creek Green 9/25 55 Rocky Creek Green 9/11 56 Heritage Park Yellow October 9/13 70 Heritage Park Yellow 10/19 59 Watkins Mill Yellow <<<End of Table>>> 9/14 63 Liberty Yellow Readings in bold represent eight-hour peak concentrations above the 70 ppb standard. Appendix B. Summary of Daily Ozone NAAQS Exceedances by Monitor imum 8-Hour (ppb) Liberty JFK Rocky Creek Richards- Gebauer Watkins Mill Heritage Park Trimble* Leavenworth* 5/ /5 71 6/ / / / /19 71 *The Trimble and Leavenworth monitors are outside the maintenance area boundary but are used to verify SkyCast ozone forecasts due to their proximity to the boundary.

7 Appendix C. Fourth-High Readings and Design s, Fourth-High Eight-Hour s Design s Missouri Liberty Watkins Mill Rocky Creek Richards-Gebauer Trimble Kansas JFK (KCK) Heritage Park Leavenworth Readings in bold represent design values above the 70 ppb standard.