BPA Area Attainment Status by Pollutant
|
Pollutant
|
Primary NAAQS
|
Averaging Period
|
Designation
|
Counties
|
Attainment Deadline
|
|
Ozone (O3)*
|
0.075 ppm
(2008 standard)
|
8-hour
|
Attainment/Unclassifiable
|
Hardin, Jefferson, Orange
|
|
|
0.08 ppm (1997 standard)
|
8-hour
|
Attainment (Maintenance)
|
Hardin, Jefferson, Orange
|
|
|
Lead (Pb)
|
0.15 µg/m3
(2008 standard)
|
Rolling 3-Month Average
|
Attainment/Unclassifiable
|
|
|
|
1.5 µg/m3
(1978 standard)
|
Quarterly Average
|
Attainment/Unclassifiable
|
|
|
|
Carbon Monoxide (CO)
|
9 ppm
|
8-hour
|
Attainment/Unclassifiable
|
|
|
|
35 ppm
|
1-hour
|
Attainment/Unclassifiable
|
|
|
|
Nitrogen Dioxide (NO2)
|
0.053 ppm
|
Annual
|
Attainment/Unclassifiable
|
|
|
|
100 ppb
|
1-hour
|
Attainment/Unclassifiable
|
|
|
|
Particulate Matter (PM10)
|
150 µg/m3
|
24-hour
|
Attainment/Unclassifiable
|
|
|
|
Particulate Matter (PM2.5)
|
12.0 µg/m3(2012 standard)
|
Annual (Arithmetic Mean)
|
Pending
|
|
|
|
15.0 µg/m3(1997 standard)
|
Annual (Arithmetic Mean)
|
Attainment/Unclassifiable
|
|
|
|
35 µg/m3
|
24-hour
|
Attainment/Unclassifiable
|
|
|
|
Sulfur Dioxide (SO2)
|
0.03 ppm**
|
Annual (Arithmetic Mean)
|
Attainment/Unclassifiable
|
|
|
|
0.14 ppm**
|
24-hour
|
Attainment/Unclassifiable
|
|
|
|
75 ppb
|
1-hour
|
Governor's Recommendation: Attainment
|
Jefferson
|
|
*The United States Environmental Protection Agency (EPA) revoked the one-hour ozone standard in all areas, although some areas have continuing obligations under that standard. See ozone history for more information.
**Standard will be revoked one year after the effective date of final designations for the 75 ppb standard.
BPA Attainment Areas
2008 Eight-Hour Ozone Standard Designations: Attainment/Unclassifiable, effective July 20, 2012 (77 FR 30088)
On March 27, 2008, the EPA lowered the primary and secondary eight-hour ozone NAAQS to 0.075 parts per million (73 FR 16436). Hardin, Jefferson, and Orange Counties were designated attainment/unclassifiable under the 2008 eight-hour ozone NAAQS, effective July 20, 2012.
1997 Eight-Hour Ozone Standard Designations: Attainment, November 19, 2010 (75 FR 64675)
The BPA area, including Hardin, Jefferson, and Orange Counties, was designated attainment under the 1997 eight-hour ozone NAAQS on November 19, 2010. In December 2008, the TCEQ submitted a redesignation request and maintenance plan SIP revision for the BPA area using certified monitoring data from 2005, 2006, and 2007. On October 20, 2010, the EPA published notice in the Federal Register finalizing approval of the 2008 redesignation request and maintenance plan SIP revision, including a determination that the BPA area has attained the 1997 eight-hour ozone standard and has met all of the applicable 1997 eight-hour ozone requirements and one-hour ozone anti-backsliding requirements for the purposes of redesignation.
National Ambient Air Quality Standards
The EPA has set National Ambient Air Quality Standards (NAAQS) for six principal criteria pollutants: ground-level ozone, lead, carbon monoxide, nitrogen dioxide, sulfur dioxide, and particulate matter.
No later than one year after promulgation of a new or revised NAAQS for any pollutant, the governor must submit designation recommendations to the EPA for all areas of the state. The EPA must then promulgate the designations within two years of promulgation of the revised NAAQS. Areas that do not meet (or contribute to ambient air quality in a nearby area that does not meet) the NAAQS are designated nonattainment. Areas that meet the NAAQS are designated attainment; and areas that cannot be classified based on the available information, unclassifiable.
For ozone, the Federal Clean Air Act establishes nonattainment area classifications ranked according to the severity of the area’s air pollution problem. These classifications—marginal, moderate, serious, severe, and extreme—translate to varying requirements with which Texas and nonattainment areas must comply.
