Air Quality Update for Deer Park Community Advisory Council September 28, 2015 Steve Hansen Technical Advisory Committee
Discussion Topics Purpose and Mission Air Quality Data Trends Air Quality Key Messages 2
s Purpose is a voluntary industry-funded technical resource dedicated to performing ambient air monitoring and related special studies to better understand air quality in the Houston area has an annual operating budget of $2.3 million that is dedicated to two programs: Monitoring Program - 10 sites Special Studies Program 3
Service Area 4
Air Monitoring Sites Near Deer Park 3 Lynchburg Ferry 16 C 35 Deer Park 8 5
The Monitoring Data and Historical Data Trends 6
Days When Houston Area Monitors Exceeded EPA Ozone Air Quality Standard 2015 YTD data through 9/17/2015 2015 shows bump up from long-term historical trend in declining ozone days 7
8-Hour Ozone Design Values 1985 2015 YTD 2015 YTD data through 9/17/2015 Significant Improvement in Houston Air Quality 8
2014 Houston Area Ozone Exceedance Days 1-Hour 124 ppb Standard 2015 YTD data through 9/17/2015 9
2015 YTD Houston Area Ozone Exceedance Days 1-Hour 124 ppb Standard 2015 YTD data through 9/17/2015 10
2014 Houston Area Ozone Exceedance Days 8-hour 84 ppb Standard 2015 YTD data through 9/17/2015 3 Regulatory Monitors Had One Exceedance Day 11
2015 YTD Houston Area Ozone Exceedance Days 8-hour 84 ppb Standard 2015 YTD data through 9/17/2015 All but One Regulatory Monitor Had at Least One Exceedance Day 12
2014 Houston Area Ozone Exceedance Days 8-hour 75 ppb Standard 2015 YTD data through 9/17/2015 All Regulatory Monitors Have Three or Fewer Exceedance Days 13
2015 YTD Houston Area Ozone Exceedance Days 8-hour 75 ppb Standard 2015 YTD data through 9/17/2015 All Regulatory Monitors Have Had Exceedance Days in 2015 YTD 14
Basic Ozone Chemistry Solar Energy Little or No Wind Clear Skies Ground Level Ozone (O 3 ) Formation Oxygen Industrial facilities Volatile Organic Compounds (VOC) On-Road Mobile Sources Off-Road Mobile Sources Vegetation (trees) Now The Largest Contributor Nitrogen Oxides (NO x ) Industrial facilities On-Road Mobile Sources Off-Road Mobile Sources Naturally Occurring 15
Annual Average NOx Concentration and Core Houston Area Monitors -- Crawford/Texas Ave, Clinton, Lang, Aldine 2015 YTD data through 8/25/2015 55% Reduction in Ambient NOx Concentrations Since 1985 16
Annual Average HRVOC Concentrations from Auto- GC Sites in the Houston Area (2005 2015 YTD) 2015 YTD data through 8/25/2015 60% Reduction in HRVOC Concentrations from 2005 through 2015 YTD 17
Average Annual HRVOC Concentrations Houston Ship Channel PAMS-GC Monitoring Sites 2015 YTD data through 8/25/2015 18
Annual Average BTEX Trends Network - 1988 through 2015 YTD BTEX Benzene, Toluene, Ethylbenzene, Xylene every sixth day 24-hour composite canister sampling data through 8/25/2015 85% Reduction in BTEX Concentrations Since 1988 19
Annual Average Benzene Concentration at Auto-GC Sites in Houston Area (2008 2015 YTD) 2015 YTD data through 8/25/2015 Results from All Monitors < TCEQ AMCV 20
Annual Average 1,3-butadiene Concentration at Auto-GC Sites in Houston (2008 2015 YTD) 2015 YTD data through 8/25/2015 Results from All Monitors Significantly < TCEQ AMCV 21
Houston Area PM 2.5 Annual Average Design Values (2003 2014) FRM PM 2.5 monitoring at Deer Park began 8/11/2013 Primary Annual NAAQS = 12 µg/m 3 Secondary Annual NAAQS = 15 µg/m 3 Annual Average Design Value is the annual mean PM 2.5 mass concentration averaged over 3 years. 22
Houston Area PM 2.5 24-hour Design Value (2003 2014) FRM PM 2.5 monitoring at Deer Park began 8/11/2013 24-hr Design Value is the 98 th percentile 24-hr average mass concentration averaged over 3 years. 23
Houston Air Quality Communications Key Messages Houston has the most extensive air monitoring network in the country has a key role in the monitoring regional air quality in Houston The air monitoring data demonstrates that the quality of the air in the region has improved dramatically and continues to improve 24