Air Quality Monitoring Overview Presentation Presented to the Gulf Coast Chapter of the Air and Waste Management Association By: Walt Crow February 3, 2009
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
Houston-Area Monitoring Stations 3
What The Data Tells Us About Ozone In The Greater Houston Area
Days When Houston Area Monitors Exceeded EPA Ozone Air Quality Standard 100 60 40 20 0 1987 1988 1989 1990 1991 Number of Exceedance Days 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 1-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 2003 2003 to to 2004 2004 Resulted Resulted In In Increased Increased Opportunity Opportunity To To Exceed Exceed 5
10 8 6 4 2 0 2008 Houston Area Ozone Exceedance Days 8-hour ppb Standard 4 3 3 3 3 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 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
Visualization of Changes in 8-hour Ozone Design Value Trends in HGB 7
8-Hour Ozone Design Values: 19 19 Montgomery Liberty 121 Waller 123 95 Fort Bend Harris 115 120 109 88 121 124 125 137 126 134 132 122 Brazoria 89 143 112 Galveston 114 105 Chambers 19: Most Of Of Houston Area Design Value Greater Than 100 100 ppb ppb Ozone Ozone Monitors and Design Values (ppb-v) < Ozone Concentration (ppb-v) 60 61-70 71-84 - 90 91-100 101-120 121 Goal = Green Source: 8
8-Hour Ozone Design Values: 1995 1995 Montgomery Liberty 113 Waller 103 94 Harris 98 91 99 104 95 106 111 97 99 100 107 104 102 Chambers Fort Bend Galveston 114 Brazoria 96 Ozone Monitors and Design Values (ppb-v) Ozone Concentration (ppb-v) < 60 61-70 71-84 - 90 91-100 101-120 121 Source: 9
8-Hour Ozone Design Values: 2005 2005 Montgomery 84 Liberty 93 Waller 92 Harris 89 79 82 93 96 89 87 92 96 100 88 88 96 93 103 99 100 98 98 97 92 92 Chambers Fort Bend 97 89 Galveston 93 87 Brazoria 79 Ozone Monitors and Design Values (ppb-v) Ozone Concentration (ppb-v) < 60 61-70 71-84 - 90 91-100 101-120 121 Source: 10
8-Hour Ozone Design Values: 2007 2007 Montgomery 84 Liberty 91 Waller 84 Harris 92 77 76 96 87 78 78 81 79 84 89 90 90 93 83 87 82 93 86 83 Chambers Fort Bend 91 84 Galveston 84 71 Brazoria 76 Ozone Monitors and Design Values (ppb-v) Ozone Concentration (ppb-v) < 60 61-70 71-84 - 90 91-100 101-120 121 Source: 11
8-Hour Ozone Design Values: 2008 2008 Montgomery Liberty Waller Harris 89 83 76 75 76 74 73 86 91 81 86 90 82 74 87 82 82 Chambers Fort Bend 78 Ozone Monitors and Design Values (ppb-v) Brazoria 76 81 Galveston 79 Ozone Concentration (ppb-v) 2008: Almost All All Monitors In In Attainment With ppb ppb Standard < 60 61-70 71-84 - 90 91-100 101-120 121 Source: 12
8-Hour Ozone Design Values: 19 To 2008 2008 19 Montgomery Montgomery Liberty Liberty 121 Waller Waller 123 Harris 115 95 124 125 137 126 134 76 143 91 86 75 89 Chambers 122 132 76 114 112 121 83 Harris 109 88 120 82 74 73 82 74 87 86 81 90 Chambers 82 Fort Bend Fort Bend 79 105 Galveston Galveston Ozone Monitors and Design Values (ppb-v) 81 Brazoria < Brazoria 78 76 89 91 0-1 10 00 1-1 20 12 1 4-9 0-8 60-7 71 < Ozone Concentration (ppb-v) Source: 61 Ozone Monitors and Design Values (ppb-v) 10 00 1-1 20 12 1 0-1 91 4-9 71-8 60 61 60-7 0 71-8 4-9 91 0-1 10 00 1-1 20 12 1 61 < -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
HGB vs. Los Angeles Ozone Comparison Air Quality Measurements 2002 2003 2004 2005 2006 2007 2008 One-Hour Exceedance days (NAAQS = 0.12 ppm) Los Angeles 45 64 28 30 44 18 26 Houston 26 35 38 35 22 10 6 Dallas-Fort Worth 0 0 Eight Hour Exceedance Days (NAAQS = 0.08ppm) Los Angeles 96 109 88 84 86 79 Houston 40 48 53 53 42 32 17 Dallas-Fort Worth 11 9 Number of Ozone Monitors Los Angeles 28 26 27 26 26 29 29 Houston 29 37 45 45 48 47 48 Dallas-Fort Worth 19 19 14
PM 2.5 Trends in Greater Houston 15
HGB PM 2.5 Monitors (2008) FRM C148 FRM 16
Annual Average 1 HGB PM 2.5 Statistics Site CAMS City 2004-2006 3 (annual Average) 2005-2007 3 (annual Average) 2006-2008 3 (annual Average) (ug/m3) (ug/m3) (ug/m3) Bayway Drive A148 Baytown 11.57 11.37 10.70 Filter Data from Air Data, 2008 Partial Year Mae Drive C1 Houston 12.52 13.30 12.94 TEOM Data from TCEQ Data Server, 2008 complete year Sheldon Road C15 Channelview 11.72 12.59 12.15 TEOM Data from TCEQ Data Server, 2008 complete year Kingwood C309_3 Kingwood 11.56 12.18 11.47 TEOM Data from TCEQ Data Server, 2008 complete year Galveston Airport C34_3 Galveston 9.91 9.93 NA TEOM Data from TCEQ Data Server, 2008 complete year Deer Park C35_3 Deer Park 11.20 11.96 11.48 TEOM Data from TCEQ Data Server, 2008 complete year Clinton Drive C403 Houston 14.41 15.38 14.88 TEOM Data from TCEQ Data Server, 2008 complete year Clinton Drive C403 Houston 15.90 16.00 14.82 Filter Data from Air Data, 2008 Partial Year Clinton Drive C403 FRM Houston 15.43 15.83 15.29 Filter Data from Air Data, 2008 Partial Year Seabrook Friendship Park C45_3 Houston 10.97 12.04 11.21 TEOM Data from TCEQ Data Server, 2008 complete year Conroe Relocated C78_3 Conroe 10.61 11.37 10.93 TEOM Data from TCEQ Data Server, 2008 complete year Aldine Mail Road C8 Houston 13.40 13.30 12.36 Filter Data from Air Data, 2008 Partial Year Park Place C416 Houston NA NA 12.52 TEOM Data from TCEQ Data Server, 2008 complete year Note 24-hour Average 2 Site CAMS City 2004-2006 3 (Average of 98th) 2005-2007 3 (Average of 98th) 2006-2008 3 (Average of 98th) (ug/m3) (ug/m3) (ug/m3) Bayway Drive A148 Baytown 25.33 24.67 26.07 Filter Data from Air Data, 2008 Partial Year Mae Drive C1 Houston 26.25 27.12 26.31 TEOM Data from TCEQ Data Server, 2008 complete year Sheldon Road C15 Channelview 24.54 25.96 25.86 TEOM Data from TCEQ Data Server, 2008 complete year Kingwood C309_3 Kingwood 25.51 26.22 25.22 TEOM Data from TCEQ Data Server, 2008 complete year Galveston Airport C34_3 Galveston 23.37 21.57 NA TEOM Data from TCEQ Data Server, 2008 complete year Deer Park C35_3 Deer Park 25.43 25.86 25.39 TEOM Data from TCEQ Data Server, 2008 complete year Clinton Drive C403 Houston 28.25 29.72 28. TEOM Data from TCEQ Data Server, 2008 complete year Clinton Drive C403 Houston 28.50 28.67 27.33 Filter Data from Air Data, 2008 Partial Year Clinton Drive C403 FRM Houston 31.00 31.67 31.00 Filter Data from Air Data, 2008 Partial Year Seabrook Friendship Park C45_3 Houston 25.03 26.07 24.91 TEOM Data from TCEQ Data Server, 2008 complete year Conroe Relocated C78_3 Conroe 23.71 24.28 23.26 TEOM Data from TCEQ Data Server, 2008 complete year Aldine Mail Road C8 Houston 28.33 27.19 27.13 Filter Data from Air Data, 2008 Partial Year Park Place C416 Houston NA NA 26.77 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 2007. 17
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
For More Information www.houstonairquality.com 19