They contain copies of various policy memoranda and reports on voc and nox control. Air quality monitors in the new york state portion of the nyma now monitor attainment of the 1990 1. Nonattainment status for each county by year, october 2007. National ambient air quality standards ozone implementation technical resources ozone monitoring season by state ozone monitoring season by state. Improve air quality by implementing pollution control measures to reduce the number of nonattainment areas. Learn about clean air act nonattainment area and county information for criteria pollutants. A demonstration that the area has air quality that is attaining the national ambient air quality standards naaqs. National ambient air quality standards naaqs the clean air act, which was last amended in 1990, requires epa to set national ambient air quality standards 40 cfr part 50 for pollutants considered harmful to public health and the environment. Ambient air quality has been steadily improving since promulgation of national ambient air quality standards naaqs by epa in accordance with the clean air act. Naaqs statutory requirements naaqs do not directly limit emissions. Listed by state, county, naaqs wwhole county,ppartial county designated nonattainment as of report date the 8hour ozone 1997 standard was revoked on april 6, 2015 and the 1hour ozone 1979 standard was revoked on june 15, 2005.
As described in detail below see implementation of the. Environmental protection agency united states environmental protection 1 agency epa 420b16072 october 2016. While naaqs which have been revoked by the epa do not appear in this table, some antibacksliding obligations may continue to apply for revoked standards. Output from this report may be downloaded in xls and dbf formats from the data download section of the green book under the nayro heading. Environmental protection agency epa further strengthened the national air quality standards naaqs for groundlevel ozone, setting a design value level of 0. Epa revised primary naaqs for sulfur dioxide so 2 standard on june 3, 2010 to 75 ppb1hour 75 fr 35520 epa designated 29 areas as nonattainment on july 25, 20 round 1 guidance for 1hr so 2 naaqs naa sip submissions was issued on april 23, 2014. Information on setting and implementing the outdoor air quality standards for sulfur dioxide. Current nonattainment area counties for all criteria pollutants. Transportation conformity guidance on the revocation of the 1997 primary annual pm2. Environmental protection agency, research triangle park, nc, september 1995. Copies of the ohio environmental protection agency individual rules, chapter 3745 of the administrative code, are available from the hearing clerk, ohio epa, p. Health originally developed the guidance document in 1957 with ohio epa making revisions to the greenbook in. The 8hour ozone 1997 standard was revoked on april 6, 2015 and the 1hour ozone 1979 standard was revoked on june 15, 2005. The design value is the 3year average of the annual fourthhighest daily maximum 8hour ozone concentration on april 30, 2018 and july 17, 2018, the agency designated areas as nonattainment.
Where applicable, links to green book reports that contain information similar to the exported data are listed. In 1997, a standard for fine particulate matter pm2. An official website of the united states government. San antonio attainment areas 2015 eighthour ozone standard designations. Tennessee whole or part county nonattainment status by year since 1992 for all criteria pollutants data is current as of april 30, 2020 listed by state, county, naaqs wwhole county,ppartial county designated nonattainment as of report date. Under the caa, congress mandated that epa establish two. Design values are defined to be consistent with the individual naaqs as described in cfr part 50. This report includes only counties designated nonattainment, ordered by state, county, naaqs. This latest revision was prepared under the direction and coordination of the ohio epa division of surface waters pti oversight committee, an internal agency work group. Anderson publishing company, 2035 reading road, cincinnati, ohio 45201, 5 4214142. This page provides links to criteria pollutant national ambient air quality standards naaqs nonattainment area and county information based on data in the green book. Although the impacts of this pollutant on health are well characterized, less is known whether the air pollution standards have.
Naaqs last shapefile update 1 shapefile containing all designated nonattainment areas external data files with area status as of green book posting 2. If the information you are looking for is not here, you may be able to find it on the epa web archive or the january 19, 2017 web snapshot. Rather, naaqs are concentrationbased standards for ambient outdoor pollution. Any area that does not meet or that contributes to ambient air quality in a nearby area that does not meet the national primary or secondary ambient air quality standard for a naaqs. Review of the national ambient air quality standards for nitrogen oxides. To view a list of areas designated nonattainment, see epa s green book site. National ambient air quality standards naaqs, pronounced \naks\ are limits on atmospheric concentration of six pollutants that cause smog, acid rain, and other health hazards. Green book sulfur dioxide 2010 area information us epa. Epa refers to these pollutants as criteria pollutants because they are regulated by using human healthbased andor environmentallybased criteria to set permissible levels.
Air quality designations for the 2006 24hour fine particle naaqs 2006 24hour pm 2. Green book 1hour ozone 1979 area information naaqs. By september 30, 2019, epa, in close collaboration with states, will. The clean air act, which was last amended in 1990, requires epa to set national ambient air quality standards 40 cfr part 50 for pollutants considered harmful to public health and the environment.
This table is intended to provide a listing of designations and classifications for current, active national ambient air quality standards naaqs. Marginal nonattainment bexar county, effective september 24, 2018 83 fr 356. Assessment of scientific, and technical information, epa 452r95005, u. A design value is a statistic that describes the air quality status of a given location relative to the level of the national ambient air quality standards naaqs. Epa no longer updates this information, but it may be useful as a reference or resource. However, all previous studies of the naaqs ignore this joint nature and focus solely on the effects of naaqs nonattainment designation on various economic outcomes.
This section provides detailed information about designations, classifications and the nonattainment area status for the 8hour ozone 2015 national ambient air quality standards naaqs. The clean air act identifies two types of national ambient air quality standards. Nonattainment areas for criteria pollutants green book. Links to technical resources related to the ozone program are also available. National air quality and emission trends report special. Transportation conformity guidance on the revocation. Tennessee whole or part county nonattainment status by. 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.
This section provides detailed information about designations and the nonattainment area status for the so 2 2010 national ambient air quality standards naaqs. On april 2, 2008, epa finalized 73 fr 17897 the designation of the remaining early action compact eac areas as attainment for the 8hour ozone 1997 national ambient air quality standards naaqs, effective april 15, 2008. Green book 1hour ozone 1979 area information naaqs revoked this section provides detailed information about designations, classifications and the status of the nonattainment areas at the time of the 1hour ozone 1979 national ambient air quality standards naaqs revocation. Naaqs is the epa official standard for criteria pollutants that impact human health and environment. Ozone designation and classification information us epa. Ozone designation and classification information nonattainment. The epa has set national ambient air quality standards for six principal criteria pollutants.
Epa revised primary 8hour ozone naaqs 70 ppb final designations required within 2 years after naaqs promulgation administrator has discretion to extend the deadline by one year to collect sufficient information state and tribal recommendations submitted to epa by october 1, 2016. Environmental protection agency epa to establish national air quality standards for six common air pollutants that are found throughout the united states. For more information on attainment status, visit the epa s green book webpage regarding nonattainment areas for criteria pollutants. Pa policy assessment 4 tbd to be determined additional information regarding current and previous naaqs.
New york whole or part county nonattainment status by year. Naaqs table the clean air act, which was last amended in 1990, requires epa to set. The data is available in xbase dbf and spreadsheet xls formats. Green book nonattainment areas for criteria pollutants anchor.
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