Air Quality Update on the Ozone National Ambient Air Quality Standards. Small Business Compliance Advisory Committee January 27, 2016 Harrisburg, PA
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1 Air Quality Update on the Ozone National Ambient Air Quality Standards Small Business Compliance Advisory Committee January 27, 2016 Harrisburg, PA
2 Agenda 2015 A Year in Review Ozone vs. Meteorology An Ozone Episode in June 2015 EPA s Adoption of New Ozone Standards Conclusions
3 Agenda 2015 A Year in Review Ozone vs. Meteorology An Ozone Episode in June 2015 EPA s Adoption of New Ozone Standards Conclusions
4 2015 Ozone Season Summary Ozone monitoring season April to October Overview of the projected 2015 design values (DV) for the 8-hour ozone national ambient air quality standard (NAAQS) 2015 DV calculation 4 th high from 2013, 2014, and 2015 averaged over a 3-year period
5 Number of 8-hour Ozone Exceedances Number of 8-hour ozone exceedance days and total number of exceedances per year within Pennsylvania s monitoring network (~50 ozone monitors) 2013: 11 days 43 total exceedances 2014: 7 days 16 total exceedances 2015: 16 days 41 total exceedances
6 Hour Ozone NAAQS Attainment Status In 2014, one sampler in Allegheny County monitored nonattainment of the hour ozone NAAQS (0.075 parts per million or 75 parts per billion). In 2015, based on preliminary design values, zero samplers in the Commonwealth are monitoring nonattainment of the hour ozone NAAQS.
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9 Meteorology Data - Summer 2015 Temperature Precipitation
10 Meteorology Data - Summer 2015 Temperature Precipitation Blue Line Approximate Location of Jet Stream
11 Meteorology Data - June 2015 Temperature Precipitation
12 Meteorology Data - July 2015 Temperature Precipitation
13 Meteorology Data - August 2015 Temperature Precipitation
14 Agenda 2015 A Year in Review Ozone vs. Meteorology An Ozone Episode in June 2015 EPA s Adoption of New Ozone Standards Conclusions
15 Ozone Episode June 11, 2015 On June 11, multiple monitors across the Commonwealth (and the Mid-Atlantic states, in general) exceeded the threshold for the 2008 ozone NAAQS. The setup The meteorological pattern promoted transport from Canada. Usually the air mass is cleaner in nature as it moves into the region this time it was different.
16 Meteorology June 09, 2015 Upper Air Surface
17 Meteorology June 10, 2015 Upper Air Surface
18 Meteorology June 11, 2015 Upper Air Surface
19 Satellite Imagery June 07, 2015
20 Satellite Imagery June 08, 2015
21 Satellite Imagery June 09, 2015
22 Satellite Imagery June 10, 2015
23 Satellite Imagery June 11, 2015
24 Aerosol Optical Depth June 07, 2015
25 Aerosol Optical Depth June 08, 2015
26 Aerosol Optical Depth June 09, 2015
27 Aerosol Optical Depth June 10, 2015
28 Aerosol Optical Depth June 11, 2015
29 Ozone Concentrations June 09, 2015 AQI Based on 2008 NAAQS
30 Ozone Concentrations June 10, 2015 AQI Based on 2008 NAAQS
31 Ozone Concentrations June 11, 2015 AQI Based on 2008 NAAQS
32 Ozone Concentrations June 11, 2015 AQI Based on 2015 NAAQS
33 1/6/2015 1/12/2015 1/18/2015 1/24/2015 1/30/2015 2/5/2015 2/11/2015 2/17/2015 2/23/2015 3/1/2015 3/7/2015 3/13/2015 3/19/2015 3/25/2015 3/31/2015 4/6/2015 4/12/2015 4/18/2015 4/24/2015 4/30/2015 5/6/2015 5/12/2015 5/18/2015 5/24/2015 5/30/2015 6/5/2015 6/11/2015 6/17/2015 6/23/2015 6/29/2015 7/5/2015 7/11/2015 7/17/2015 7/23/2015 7/29/2015 8/4/2015 8/10/2015 8/16/2015 8/22/2015 8/28/2015 9/3/2015 Concentration (µg/m 3 ) Elevated Ozone Link to Fires 1 PM2.5 Speciation Data Potassium Ion (K+) New Garden Arendtsville Chester (PA) Florence Freemansburg Greensburg Johnstown Lancaster Marcus Hook 0.2 0
34 1/6/2015 1/12/2015 1/18/2015 1/24/2015 1/30/2015 2/5/2015 2/11/2015 2/17/2015 2/23/2015 3/1/2015 3/7/2015 3/13/2015 3/19/2015 3/25/2015 3/31/2015 4/6/2015 4/12/2015 4/18/2015 4/24/2015 4/30/2015 5/6/2015 5/12/2015 5/18/2015 5/24/2015 5/30/2015 6/5/2015 6/11/2015 6/17/2015 6/23/2015 6/29/2015 7/5/2015 7/11/2015 7/17/2015 7/23/2015 7/29/2015 8/4/2015 8/10/2015 8/16/2015 8/22/2015 8/28/2015 9/3/2015 Concentration (µg/m 3 ) Elevated Ozone Link to Fires 1 PM2.5 Speciation Data Potassium Ion (K+) New Garden Arendtsville Chester (PA) Florence Freemansburg Greensburg Johnstown Lancaster Marcus Hook 0.2 0
35 1/6/2015 1/12/2015 1/18/2015 1/24/2015 1/30/2015 2/5/2015 2/11/2015 2/17/2015 2/23/2015 3/1/2015 3/7/2015 3/13/2015 3/19/2015 3/25/2015 3/31/2015 4/6/2015 4/12/2015 4/18/2015 4/24/2015 4/30/2015 5/6/2015 5/12/2015 5/18/2015 5/24/2015 5/30/2015 6/5/2015 6/11/2015 6/17/2015 6/23/2015 6/29/2015 7/5/2015 7/11/2015 7/17/2015 7/23/2015 7/29/2015 8/4/2015 8/10/2015 8/16/2015 8/22/2015 8/28/2015 9/3/2015 Concentration (µg/m 3 ) Elevated Ozone Link to Fires PM2.5 Speciation Data Organic Carbon Arendtsville Chester Florence Freemansburg Greensburg Johnstown Lancaster Marcus Hook New Garden 2 0
36 1/6/2015 1/12/2015 1/18/2015 1/24/2015 1/30/2015 2/5/2015 2/11/2015 2/17/2015 2/23/2015 3/1/2015 3/7/2015 3/13/2015 3/19/2015 3/25/2015 3/31/2015 4/6/2015 4/12/2015 4/18/2015 4/24/2015 4/30/2015 5/6/2015 5/12/2015 5/18/2015 5/24/2015 5/30/2015 6/5/2015 6/11/2015 6/17/2015 6/23/2015 6/29/2015 7/5/2015 7/11/2015 7/17/2015 7/23/2015 7/29/2015 8/4/2015 8/10/2015 8/16/2015 8/22/2015 8/28/2015 9/3/2015 Concentration (µg/m 3 ) Elevated Ozone Link to Fires PM2.5 Speciation Data Organic Carbon Arendtsville Chester Florence Freemansburg Greensburg Johnstown Lancaster Marcus Hook New Garden 2 0
37 1/6/2015 1/12/2015 1/18/2015 1/24/2015 1/30/2015 2/5/2015 2/11/2015 2/17/2015 2/23/2015 3/1/2015 3/7/2015 3/13/2015 3/19/2015 3/25/2015 3/31/2015 4/6/2015 4/12/2015 4/18/2015 4/24/2015 4/30/2015 5/6/2015 5/12/2015 5/18/2015 5/24/2015 5/30/2015 6/5/2015 6/11/2015 6/17/2015 6/23/2015 6/29/2015 7/5/2015 7/11/2015 7/17/2015 7/23/2015 7/29/2015 8/4/2015 8/10/2015 8/16/2015 8/22/2015 8/28/2015 9/3/2015 Concentration (µg/m 3 ) Elevated Ozone Link to Fires PM2.5 Speciation Data Organic Carbon Arendtsville Chester Florence Freemansburg Greensburg Johnstown Lancaster Marcus Hook New Garden 2 0
38 1/6/2015 1/12/2015 1/18/2015 1/24/2015 1/30/2015 2/5/2015 2/11/2015 2/17/2015 2/23/2015 3/1/2015 3/7/2015 3/13/2015 3/19/2015 3/25/2015 3/31/2015 4/6/2015 4/12/2015 4/18/2015 4/24/2015 4/30/2015 5/6/2015 5/12/2015 5/18/2015 5/24/2015 5/30/2015 6/5/2015 6/11/2015 6/17/2015 6/23/2015 6/29/2015 7/5/2015 7/11/2015 7/17/2015 7/23/2015 7/29/2015 8/4/2015 8/10/2015 8/16/2015 8/22/2015 8/28/2015 9/3/2015 Concentration (µg/m 3 ) Elevated Ozone Link to Fires PM2.5 Speciation Data Organic Carbon Arendtsville Chester Florence Freemansburg Greensburg Johnstown Lancaster Marcus Hook New Garden 2 0
39 Agenda 2015 A Year in Review Ozone vs. Meteorology An Ozone Episode in June 2015 EPA s Adoption of New Ozone Standards Conclusions
40 Summary of 2015 Ozone Standard Changes to the level of the ozone standard - On October 1, 2015, EPA lowered the 8-hour ozone primary (health-based) standard from ppm to ppm. The primary standard was lowered because, based on science, the EPA Administrator determined that the 2008 standard was no longer adequate for the protection of public health. In addition, the 8-hour ozone secondary (welfare-based) standard was also strengthened to ppm. The secondary ozone standard was also lowered because of scientific evidence of the impact of ozone on growth processes of plants and trees. Changes to the Air Quality Index (AQI) scale Based on the strengthening of the ozone standard, EPA has updated the breakpoints for each AQI category.
41 Changes to the Air Quality Index AQI Category Index Values 2008 Breakpoints (ppb, 8-hour average) 2015 Breakpoints (ppb, 8-hour average) Good Moderate Unhealthy for Sensitive Groups Unhealthy Very Unhealthy Hazardous Significant Harm Level* Significant Harm Level* * The Significant Harm Level for ozone is 600 ppb (based on a 2-hour average).
42 Changes to the Air Quality Index AQI Category Index Values 2008 Breakpoints (ppb, 8-hour average) 2015 Breakpoints (ppb, 8-hour average) Good Moderate Unhealthy for Sensitive Groups Unhealthy Very Unhealthy Hazardous Significant Harm Level* Significant Harm Level* * The Significant Harm Level for ozone is 600 ppb (based on a 2-hour average). Code ORANGE or higher Air Quality Action Days for Ozone
43 Changes to the Air Quality Index AQI Category Index Values 2008 Breakpoints (ppb, 8-hour average) 2015 Breakpoints (ppb, 8-hour average) Good Moderate Unhealthy for Sensitive Groups Unhealthy Very Unhealthy Hazardous Significant Harm Level* Significant Harm Level* * The Significant Harm Level for ozone is 600 ppb (based on a 2-hour average). Code ORANGE or higher Air Quality Action Days for Ozone
44 Days Above the 2008 and 2015 Ozone NAAQS
45 Days Above the 2008 and 2015 Ozone NAAQS NOx SIP Call Period (2003-Current)
46 Number of Ozone NAAQS Exceedances
47 Number of Ozone NAAQS Exceedances NOx SIP Call Period (2003-Current)
48
49 Agenda 2015 A Year in Review Ozone vs. Meteorology An Ozone Episode in June 2015 EPA s Adoption of New Ozone Standards Conclusions
50 Conclusions Based on the preliminary 2015 design values, the Commonwealth continues to see a decline in 8-hour ozone concentrations. Near normal temperatures coupled with above normal precipitation produced less than normal number of exceedances of the 2008 ozone NAAQS. In fact, based on the preliminary 2015 design values, all monitors in the Commonwealth are attaining the 8-hour ozone NAAQS.
51 Conclusions There were 8-hour ozone NAAQS exceedances in 2015 that could be contributable to wildfire smoke from western Canada / western United States. In addition, EPA issued the new ozone standards by October 1, The final rule for the new ozone NAAQS outlines the following: Changes to the level of the ozone standard Changes to the AQI scale
52 Sean Nolan Environmental Group Manager Air Quality Monitoring Division
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