The levels set by epa are known as national ambient air quality standards naaqs. Usepa green book pollutions and environmental gis data. Under the caa, congress mandated that epa establish two types of naaqs for each criteria pollutant. These commonly found air pollutants also known as criteria pollutants are particle pollution or particulate matter pm, groundlevel ozone, carbon monoxide co.
The first naaqs that the nonattainment areas were designated using shapefiles were the 1997 8. The usepas ord calculated a threeyear average 2004 2006 using the values for ozone number of days with the maximum 8hour average above the national ambient air quality standards naaqs and pm 2. To view a list of areas designated nonattainment, see epas green book site. Issue papers and presentations for three national public meetings are presented. Under the caa, congress mandated that epa establish two types of. County, naaqs part county na na area name classification, if applicable.
Additionally, this site contains information related to epa effort to develop an implementation rule for the 1997 8hour national ambient air quality standard. In 2015, epa established a new naaqs primary ozone standard of 0. Epa maintains a list of nonattainment areas for all six principal pollutants on their. National emission standards for hazordous air pollutants neshap, new source performance standards nsps, state implementation plan sip for national ambient air quality standards naaqs, and other guidance documents subject. The clean air act requires the environmental protection agency epa to set the national ambient air quality standards for pollutants considered harmful to public health and the environment. The map shows the current ozone nonattainment areas that include parts of new jersey. Epa proposes to retain 2010 air quality standard for nitrogen. So 2 primary rea plans presentation for the casac bob hetes, stephen graham, nicole hagan march 21, 2017. More information on the 2015 standard, including a number of fact sheets and the u. Transportation conformity guidance on the revocation of. Environmental protection agency epa has just set new and more stringent standards for both of these pollutants. Environmental protection agency united states environmental protection 1 agency epa420b16072 october 2016.
Once a nonattainment area meets the standards, epa will designate it as maintenance. Green book 8hour ozone 1997 area information naaqs. All nonattainment areas green book including 8hour ozone nonattainment areas. Areas of the country where air pollution levels of are above a naaqs may be designated by usepa as nonattainment. The epa green book provides detailed information about area naaqs national ambient air quality standards designations, classifications and nonattainment status. Congestion mitigation and air quality improvement program cmaq. Final national ambient air quality standards for ozone rule signed october 1, 2015 80 fr 65292, revising the primary and secondary 8hour ozone standards to 0. 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. Jan 28, 2014 us epa green book download file description the designation process has included the development of gis shapefiles during the designation process for nonattainment areas since 2004.
Current nonattainment counties for all criteria pollutants green. On july 10, 1998 63 fr 37258, epa published the final rule redesignating the san francisco bay area to nonattainment with the federal 1hour ozone naaqs. This report is a summary of the population living in an area that. Learn about clean air act nonattainment area and county information for criteria pollutants.
The naaqs are health based and the epa sets two types of standards. Nonattainment areas for criteria pollutants green book. Nonattainment areas for criteria pollutants green book us epa. The national ambient air quality standards naaqs are the concentrations of. Green book national area and countylevel multipollutant epa.
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. In the near term, almost all 50 states have to write clean air state implementation plans sip to show epa how they will meet the tighter federal naaqs for ozone andor pm. Under the caa, congress mandated that epa establish two types of naaqs for each criteria pollutant a primary naaqs, which must protect public health with. Epa home green book important notes important notes for the. Epa lowered the federal 8hour primary and secondary ozone standard from 0. National ambient air quality standards naaqs were set across the united states in the clean air act of 1970. Utahair common air pollutants utah department of health. The federal clean air act requires the united states environmental protection agency usepa to set national ambient air quality standards naaqs for six common air pollutants. National ambient air quality standards ozone naaqs nonattainment consequences so 2 naaqs 2. The rule sets more stringent standards, lowering both the primary healthbased and secondary welfarebased. County pollutant area name nonattainment in year redesignation to maintenance classification whole or part county population 2010 state county fips. The clean air act identifies two types of national ambient air quality standards. Attainmentmaintenance naaqs only, which violated a naaqs that is currently in use was nonattainment in or after 1990, but now attains the standard and is officially redesignated to attainment by u. Aug 31, 2011 national ambient air quality standards.
Provides funding to address challenging in attaining or maintaining the national ambient air quality standards for ozone, carbon monoxide, and or particulate matter. The epa has set national ambient air quality standards naaqs for six principal criteria pollutants. Epa home green book the green book nonattainment areas the green book nonattainment areas for criteria pollutants questions concerning the status of nonattainment areas, their classification and epa policy should be directed to. 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. Counties designated nonattainment green book us epa. Green book data download nonattainment areas for criteria. Naaqs statutory requirements do not directly limit emissions. The usepa green book provides detailed information about area. Transportation conformity guidance on the revocation of the 1997 primary annual pm2. In 1997, epa set the national ambient air quality standards naaqs for annual fine particle pm 2. Will my state adopt californias offroad engine emission. Nonattainment status for each county by year report these statecounty reports list the annual. Epa ttn naaqs ozone implementation technical resources.
The primary standards are designed to protect the health of sensitive populations such as asthmatics, children, and the elderly. The agency later designated 39 areas including at least part of 208 counties as nonattainment not meeting the standards effective april 5, 2005. For additional information on nonattainment areas across the country for the six naaqs pollutants, visit the epas green book. To view a list of areas designated nonattainment, see epa s green book site. Epa concluded that the standards, last revised in 2010, are adequate to protect public health. We further examined how the association varied with respect to countylevel naaqs designations by stratifying in two ways. The design value is the annual arithmetic mean concentrations, averaged over 3 years. Njdepcleanairnjclean air njnj ozone air quality standards. Rather, naaqs are concentrationbased standards for ambient outdoor pollution. Maps of epas final 2015 ozone naaqs nonattainment area. The clean air act requires the epa to set us national ambient air quality standards naaqs for the six caps. Where applicable, links to green book reports that contain.
Rather, naaqs rationbased standards for ambient outdoor pollution. For additional information about original designations and attainment status, please refer to the epa s green book. The first naaqs that the nonattainment areas were designated using shapefiles were the 1997 8hour ozone areas. Information is current as of the green book posted date and is available in reports, maps and data downloads. The 8hour ozone 1997 standard was revoked on april 6, 2015 and the 1hour ozone 1979 standard was revoked on june 15, 2005. Epas 2015 ozone air quality standards congressional research service summary on october 1, 2015, the environmental protection agency epa finalized revisions to the national ambient air quality standards naaqs for groundlevel ozone.
As described in detail below see implementation of the. Epa refers to these pollutants as criteria pollutants because they are regulated by using human healthbased andor environmentallybased criteria to set permissible levels. Year refers to the calendar year, and reflects the areas nonattainment status as of the date of the report. Epa home green book counties designated nonattainment. Health originally developed the guidance document in 1957 with ohio epa making revisions to the greenbook in. Epa as polluted under the clean air act is documented in the u. While naaqs which have been revoked by the epa do not appear in this. Epa region 4 regulatory update mecklenburg county annual air quality forum charlotte, nc november 21, 2019 ken mitchell, ph. Any county not listed has been designated attainment since 1992. Green book nonattainment areas missouri nonattainment. Naaqs designations, classifications, and nonattainment. Epas green book on nonattainment areas for criteria pollutants. Epa home green book current nonattainment counties for.
Environmental protection agency epa makes final determinations called designations as to whether states meet the national ambient air quality standards epa publishes these determinations in the federal register and they are contained in the code of federal regulations cfr. National ambient air quality standards bad river tribe. 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. Information is current as of the green book posted date and is. Epa green book 8hour ozone 2008 area information webpage. The epa measures, track, report and regulates ground level ambient ozone levels in large cities throughout the united states. Green book 8hour ozone 1997 area information naaqs revoked this section provides detailed information about designations, classifications and the status of the nonattainment areas at the time of the 8hour ozone 1997 national ambient air quality standards naaqs revocation on april 6, 2015. The epa green book provides detailed information about area national ambient air quality standards naaqs designations, classifications and nonattainment status. Naaqs table 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. For other naaqs nonattainment areas, see epas green book. Wisconsin department of natural resources epas final 2015 ozone naaqs nonattainment area designations kenosha county note. Louisiana nonattainmentmaintenance status for each county.
For older naaqs, many areas were nonattainment before 1992 but the 1992 starting year is based on 40 cfr part 81 designations, effective. As described in detail below see implementation of the 2015 standards, under the caa. Environmental protection agency 1200 pennsylvania avenue, nw washington, dc 20460 subject. Jan 16, 2018 the epa has set national ambient air quality standards for six principal criteria pollutants. These statecounty reports list the annual nonattainment and maintenance status of each county by designated area name by naaqs. Usepa green book download file description the designation process has included the development of gis shapefiles during the designation process for nonattainment areas since 2004. Epa groundlevel ozone 2015 naaqs regulatory actions website. Naaqs statutory requirements naaqs do not directly limit emissions. For more information on attainment status, visit the epas green book exit the tceq. Air quality designations for the 2006 24hour fine particle naaqs 2006 24hour pm 2. The green book nonattainment areas for criteria pollutants. Aqd, air, rop, title v, neshap, mact and nsps guidance created date. In addition to the epa, the clean air act is administered by state, tribal, and local agencies, which are responsible for developing local solutions to air quality problems. Epa the green book so2 nonattainment areas 2010 standard.