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Utah Whole or Part County Nonattainment Status by Year Since 1992 for all Criteria Pollutants

Data is current as of June 20, 2017

Listed by State, County, NAAQS (W=Whole County,P=Partial County designated nonattainment as of report date)
The 8-hour Ozone (1997) standard was revoked on April 6, 2015 and the 1-hour Ozone (1979) standard was revoked on June 15, 2005.

The 1997 Primary Annual PM-2.5 NAAQS (level of 15 µg/m3) is revoked in attainment and maintenance areas for that NAAQS. For additional information see the PM-2.5 NAAQS SIP Requirements Final Rule, effective October 24, 2016. (81 FR 58009)

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Important Notes
UTAH
County NAAQS 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17
Box Elder Co PM-2.5 (2006) P P P P P P P P P
Cache Co PM-2.5 (2006) P P P P P P P P P
Davis Co 1-Hour Ozone (1979)-NAAQS revoked W W W W W
Davis Co PM-2.5 (2006) W W W W W W W W W
Salt Lake Co 1-Hour Ozone (1979)-NAAQS revoked W W W W W
Salt Lake Co Carbon Monoxide (1971) P P P P P P P
Salt Lake Co PM-10 (1987) W W W W W W W W W W W W W W W W W W W W W W W W W W
Salt Lake Co PM-2.5 (2006) W W W W W W W W W
Salt Lake Co Sulfur Dioxide (1971) W W W W W W W W W W W W W W W W W W W W W W W W W W
Tooele Co PM-2.5 (2006) P P P P P P P P P
Tooele Co Sulfur Dioxide (1971) P P P P P P P P P P P P P P P P P P P P P P P P P P
Utah Co Carbon Monoxide (1971) P P P P P P P P P P P P P P
Utah Co PM-10 (1987) W W W W W W W W W W W W W W W W W W W W W W W W W W
Utah Co PM-2.5 (2006) P P P P P P P P P
Weber Co Carbon Monoxide (1971) P P P P P P P P P
Weber Co PM-10 (1987) P P P P P P P P P P P P P P P P P P P P P P P
Weber Co PM-2.5 (2006) P P P P P P P P P
Important Notes

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