Air Quality Monitoring Overview Presentation
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1 Air Quality Monitoring Overview Presentation Presented to the Gulf Coast Chapter of the Air and Waste Management Association By: Walt Crow February 3, 2009
2 Houston Area Air Monitors Houston ranks #1 in the number of air monitors in the nation Air monitor equipment samples outdoor air. There are 48 ozone monitors in the Houston- Galveston-Brazoria (HGB) area operated by the TCEQ, City, Harris County,, or independent sources There are 32 monitors that measure hazardous air pollutants (HAPs) in HGB 2
3 Houston-Area Monitoring Stations 3
4 What The Data Tells Us About Ozone In The Greater Houston Area
5 Days When Houston Area Monitors Exceeded EPA Ozone Air Quality Standard Number of Exceedance Days Hour Standard (0.12 ppm) 8-Hour Standard (0.08 ppm) 8-Hour Standard (0.075 ppm) Steady Improvement In In Number of of Ozone Exceedance Days Increased Increased Number Number Of Of Monitors Monitors In In to to Resulted Resulted In In Increased Increased Opportunity Opportunity To To Exceed Exceed 5
6 Houston Area Ozone Exceedance Days 8-hour ppb Standard Exceedance Days Wallisville Road Houston Aldine West Houston Houston Bayland Park Site 01 Bunker Hill Village Katy Park Site 04 Houston Deer Park 2 Site 11 Crosby Library Park Place Clinton Tom Bass Site 08 Houston Westhollow Houston Croquet Atascocita Lake Jackson Danciger Baytown Wetlands Center Kingwood Library Texas City 34th St. Manvel Croix Park Site 07 Sheldon Conroe Relocated La Porte Sylvan Beach Galveston Avenue V Clear Brook High School /3 Haden Road Seabrook Friendship Park Pasadena Site 10 Channelview Meyer Park Northwest Harris Co. Mercer Arboretum Clear Creek High School Houston East Mustang Bayou Houston North Wayside Clear Lake High School Houston Regional Office Houston Texas Avenue Houston Monroe Lang Lynchburg Ferry 2008 Measurements Better Than Standard At At All All Sites Except Wallisville Road
7 Visualization of Changes in 8-hour Ozone Design Value Trends in HGB 7
8 8-Hour Ozone Design Values: Montgomery Liberty 121 Waller Fort Bend Harris Brazoria Galveston Chambers 19: Most Of Of Houston Area Design Value Greater Than ppb ppb Ozone Ozone Monitors and Design Values (ppb-v) < Ozone Concentration (ppb-v) Goal = Green Source: 8
9 8-Hour Ozone Design Values: Montgomery Liberty 113 Waller Harris Chambers Fort Bend Galveston 114 Brazoria 96 Ozone Monitors and Design Values (ppb-v) Ozone Concentration (ppb-v) < Source: 9
10 8-Hour Ozone Design Values: Montgomery 84 Liberty 93 Waller 92 Harris Chambers Fort Bend Galveston Brazoria 79 Ozone Monitors and Design Values (ppb-v) Ozone Concentration (ppb-v) < Source: 10
11 8-Hour Ozone Design Values: Montgomery 84 Liberty 91 Waller 84 Harris Chambers Fort Bend Galveston Brazoria 76 Ozone Monitors and Design Values (ppb-v) Ozone Concentration (ppb-v) < Source: 11
12 8-Hour Ozone Design Values: Montgomery Liberty Waller Harris Chambers Fort Bend 78 Ozone Monitors and Design Values (ppb-v) Brazoria Galveston 79 Ozone Concentration (ppb-v) 2008: Almost All All Monitors In In Attainment With ppb ppb Standard < Source: 12
13 8-Hour Ozone Design Values: 19 To Montgomery Montgomery Liberty Liberty 121 Waller Waller 123 Harris Chambers Harris Chambers 82 Fort Bend Fort Bend Galveston Galveston Ozone Monitors and Design Values (ppb-v) 81 Brazoria < Brazoria < Ozone Concentration (ppb-v) Source: 61 Ozone Monitors and Design Values (ppb-v) < -7 Ozone Concentration (ppb-v) Ozone Monitors and Design Values (ppb-v) 0 Ozone Concentration (ppb-v) Significant SignificantHouston HoustonArea AreaAir AirQuality QualityImprovements Improvements 13
14 HGB vs. Los Angeles Ozone Comparison Air Quality Measurements One-Hour Exceedance days (NAAQS = 0.12 ppm) Los Angeles Houston Dallas-Fort Worth 0 0 Eight Hour Exceedance Days (NAAQS = 0.08ppm) Los Angeles Houston Dallas-Fort Worth 11 9 Number of Ozone Monitors Los Angeles Houston Dallas-Fort Worth
15 PM 2.5 Trends in Greater Houston 15
16 HGB PM 2.5 Monitors (2008) FRM C148 FRM 16
17 Annual Average 1 HGB PM 2.5 Statistics Site CAMS City (annual Average) (annual Average) (annual Average) (ug/m3) (ug/m3) (ug/m3) Bayway Drive A148 Baytown Filter Data from Air Data, 2008 Partial Year Mae Drive C1 Houston TEOM Data from TCEQ Data Server, 2008 complete year Sheldon Road C15 Channelview TEOM Data from TCEQ Data Server, 2008 complete year Kingwood C309_3 Kingwood TEOM Data from TCEQ Data Server, 2008 complete year Galveston Airport C34_3 Galveston NA TEOM Data from TCEQ Data Server, 2008 complete year Deer Park C35_3 Deer Park TEOM Data from TCEQ Data Server, 2008 complete year Clinton Drive C403 Houston TEOM Data from TCEQ Data Server, 2008 complete year Clinton Drive C403 Houston Filter Data from Air Data, 2008 Partial Year Clinton Drive C403 FRM Houston Filter Data from Air Data, 2008 Partial Year Seabrook Friendship Park C45_3 Houston TEOM Data from TCEQ Data Server, 2008 complete year Conroe Relocated C78_3 Conroe TEOM Data from TCEQ Data Server, 2008 complete year Aldine Mail Road C8 Houston Filter Data from Air Data, 2008 Partial Year Park Place C416 Houston NA NA TEOM Data from TCEQ Data Server, 2008 complete year Note 24-hour Average 2 Site CAMS City (Average of 98th) (Average of 98th) (Average of 98th) (ug/m3) (ug/m3) (ug/m3) Bayway Drive A148 Baytown Filter Data from Air Data, 2008 Partial Year Mae Drive C1 Houston TEOM Data from TCEQ Data Server, 2008 complete year Sheldon Road C15 Channelview TEOM Data from TCEQ Data Server, 2008 complete year Kingwood C309_3 Kingwood TEOM Data from TCEQ Data Server, 2008 complete year Galveston Airport C34_3 Galveston NA TEOM Data from TCEQ Data Server, 2008 complete year Deer Park C35_3 Deer Park TEOM Data from TCEQ Data Server, 2008 complete year Clinton Drive C403 Houston TEOM Data from TCEQ Data Server, 2008 complete year Clinton Drive C403 Houston Filter Data from Air Data, 2008 Partial Year Clinton Drive C403 FRM Houston Filter Data from Air Data, 2008 Partial Year Seabrook Friendship Park C45_3 Houston TEOM Data from TCEQ Data Server, 2008 complete year Conroe Relocated C78_3 Conroe TEOM Data from TCEQ Data Server, 2008 complete year Aldine Mail Road C8 Houston Filter Data from Air Data, 2008 Partial Year Park Place C416 Houston NA NA TEOM Data from TCEQ Data Server, 2008 complete year Note 1. To attain this standard, the 3-year average of the weighted annual mean PM2.5 concentrations from single or multiple community-oriented monitors must not exceed 15.0 ug/m3. 2. To attain this standard, the 3-year average of the 98th percentile of 24-hour concentrations at each population-oriented monitor within an area must not exceed 35 ug/m3. 3. Source: EPA Air Data and TCEQ DSR data base. 4. Special note: No correlation factor between FRM and FEM monitors was considered for TEOM data before
18 In Summary The Greater Houston Area is the most heavily monitored area in the US. Houston s air quality has dramatically improved and will continue to improve. Evidenced by the fact: Exceedances of the ozone NAAQS continues to decline Annual average PM2.5 levels are declining at area monitors 18
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