Historical trends in data and studies for the Upper Green River Basin (UGRB)

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1 Historical trends in data and studies for the Upper Green River Basin (UGRB) 2015 Western Air Quality Modeling Workshop May 14, 2015 Darla J. Potter WDEQ Air Quality Division 1

2 Overview UGRB Overview Trends Studies 2

3 Upper Green River Basin 3

2005 Elevated Ozone Monitored, 1st Time 2007 DEQ Collaboration & Research DEQ & Industry

Research DEQ & Industry Efforts 2013 Ozone Strategy 3/11/13 Ozone Strategy 9/24/13 2015 Ozone

Marginal Attainment July 20, 2015 Marginal Nonattainment Designation July 20, 2012 2006 Ozone

Efforts 2010 DEQ Collaboration & Research DEQ & Industry Efforts 2012 DEQ Formation of Task

4 2005 Elevated Ozone Monitored, 1st Time 2007 DEQ Collaboration & Research DEQ & Industry Efforts 2009 DEQ Collaboration & Research DEQ & Industry Efforts 2011 DEQ Collaboration & Research DEQ & Industry Efforts 2013 Ozone Strategy 3/11/13 Ozone Strategy 9/24/ Ozone Strategy 4/28/15 11 Years of UGRB Ozone Efforts Nonattainment Recommendation March 2009 Marginal Attainment July 20, 2015 Marginal Nonattainment Designation July 20, Ozone Monitor Comparison Initial VOC Samples 2008 DEQ Collaboration & Research DEQ & Industry Efforts 2010 DEQ Collaboration & Research DEQ & Industry Efforts 2012 DEQ Formation of Task Force AQD Evaluation of Recommendations 2014 Ozone Strategy 4/22/14 Ozone Strategy 10/21/14 4 WDEQ AQD April 2015

5 Upper Green River Basin Ozone Nonattainment Area Sublette County, Portion of Lincoln County, Portion of Sweetwater County March 2009 Ozone NAA Recommendation Final NAA Designation Marginal Effective July 20,

6 Winter Ozone Forecasting Daily Forecasts January through March 7 days a week by WDEQ-AQD staff and contract meteorologists Based on weather forecasts: wind, snow depth and cover, pressure fronts, cloud cover Winter Ozone Updates Expected conditions for today, tomorrow, extended (day 3) Information for the public to make decisions about outdoor activity Ozone Action Days Issued in advance (24-hrs) when forecast weather conditions appear favorable for the formation of elevated ozone the following day Implementation of Ozone Contingency Plans Voluntary plans to utilize short-term emission reduction measures Everyone is encouraged to voluntarily reduce emissions 6

7 Snow Depth

8 Snow Cover March 10, 2011 March 10,

Upper Green Winter Ozone Studies Winter ozone first monitored at Jonah and Boulder Stations First full scale measurement Mesonets VOC s/aldehydes Upper air/plane/tetheredsondes Focus on precusors

9 Upper Green Winter Ozone Studies Winter ozone first monitored at Jonah and Boulder Stations First full scale measurement Mesonets VOC s/aldehydes Upper air/plane/tetheredsondes Focus on precusors Gaseous Nitrogen species and photolysis rate Mesonets; VOC s/aldehydes Other trace gases Mini SODAR/sondes Ozone measurement comparison Check for instrument interference VOC measurements Full scale measurement with conducive ozone conditions Mesonets; VOC s/aldehydes Plane/sondes Addition of mini SODAR Focus on precursors and nitrogen HONO Addition of Methane/nonmethane at Boulder Mesonets; VOC s Mini SODAR 9

10 Focus on vertical/spatial distribution of precursors Tall tower/balloon multi level precursors HONO; NO y ; true NO 2 Speciated PM 2.5 Mesonets; VOC s Mini SODAR Focus on spatial VOC distribution Mesonets VOC at 8 sites Jonah trailer with NOx and VOC s VOC and Formaldehyde distibution Meteorology VOC/HCHO at 6 sites Ongoing Monitoring Tracking changes in VOC composition Ongoing Long term ozone monitoring Future Scaled back spatial distribution of precursors Mesonets; VOC s Jonah trailer with NOx and VOC s Mini SODAR Scaled back VOC and Formaldehyde distibution Mesonets VOC/HCHO at 6 sites Jonah trailer with NOx and VOC s Non Attainment Requirements Awaiting further requirements from EPA on Photochemical Assement Monitoring (PAMS) for nonattainment areas 10

11 UGRB Winter Ambient Monitoring 11

12 Ozone Design Values 12

13 Actual Emissions Inventories 13

14 14

15 Collaboration and Research Modeling Studies Box Model of 2006 Winter Ozone Episode Conceptual Model of Winter Episodes in Southwest Wyoming 2008 Winter Ozone Box Model Study Meteorological Modeling: Development of High-Resolution 3-Dimensional Wind Fields using CALMET CALGRID Ozone Modeling Analyses Meteorological Modeling, to support photochemical grid modeling using WRF Modeling analysis of precursor (NO x & VOC) concentration fields Photochemical Grid Modeling 15

16 Collaboration and Research Other Studies Upper Green Winter Ozone Study (UGWOS): 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Screening Health Risk Assessment, Sublette County Evaluation of meteorological conditions during UGWOS 2011 Climatology study of long-term meteorological phenomena Evaluation and refinement of WDEQ forecasting checklist Reactivity study of individual VOCs specific to UGRB EPA Geospatial Measurement of Air Pollution and diffusion tube monitoring studies: 2011, 2012,

17 Collaboration and Research Other Studies (cont.) Pinedale Anticline Spatial Air Quality Analysis Emission Inventory refinement through development of field-specific emissions factors for flashing emissions WY Department of Health epidemiologic study Microscale Wind Survey Evaluation of Winter Chemistry at Boulder Mobile Monitoring Assessment Produced Water Tank Study 17

18 Collaboration and Research Other Studies (cont.) Ongoing UGWOS Statewide Engine Study Oil & Gas Production Site Emissions Inventory Study Produced Water Ponds Study 18

19 Questions Darla Potter, AQRM Program Manager Cara Keslar, Monitoring Section Supervisor Andrew Keyfauver, New Source Review Permit Engineer Josh Nall, New Source Review Supervisor Adam Deppe, Air Quality Planning Meteorologist Dan Sharon, Ambient Air Monitoring Project Manager 19

Understanding and Solving a Pollution Problem

Understanding and Solving a Pollution Problem 2010-2011 Environmental Public Health Leadership Institute Fellow: Timothy P. Ryan; MS, PhD State Occupational Epidemiologist Office of Governor Matt Mead