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Complete Health Indicator Report of Air Quality: Ozone

Definition

The United States' Environmental Protection Agency (EPA) ozone standard states that the 8-hour average ozone level should not exceed 0.070 ppm. These standard levels are often referred to as the National Ambient Air Quality Standards (NAAQS). This level is considered protective for most people and within the normal defensive capacities of the human respiratory system.^1-3^[[br]] [[br]] ---- 1. McDonnell, et al. (1997) Prediction of ozone-induced FEV1 changes: Effects of concentration, duration and ventilation. American Journal of Respiratory and Critical Care Medicine. Vol 156, 715-722.[[br]] 2. Mudway, et.al. (2001) Differences in basal airway antioxidant concentrations are not predictive of individual responsiveness to ozone: A comparison of healthy and mild asthmatic subjects. Free Radical Biology and Medicine, Vol 31, No. 8. 962-974.[[br]] 3. Mudway, I and Kelly, F. J. (2004) An investigation of inhaled ozone dose and the magnitude of airway inflammation in healthy adults. American Journal of Respiratory and Critical Care Medicine, Vol 169, 1089-1095.

Numerator

This Indicator Report contains the following variables:[[br]] 1. Number of days with maximum 8-hour average ozone concentrations above the National Ambient Air Quality Standards (NAAQS) by county[[br]] 2. Number of person-days with maximum 8-hour average ozone concentrations above the NAAQS by county

Denominator

When applicable, population was obtained from the IBIS query system for appropriate years by county.

Data Interpretation Issues

Data on ozone levels are only available where air monitors exist. These monitors do not cover the entire state. The monitors may not measure ozone levels year-round, as the national standard is to measure mostly during summer months. These data include "exceptional events" such as high winds, fires, construction, fireworks, etc. These values represent days when at least one air monitoring station showed a reading over the National Ambient Air Quality Standard (NAAQS) within a county. Each county that had data was used to calculate the percentage of Utah counties that had at least one day where ozone was above the NAAQS. This report uses the 2015 primary and secondary NAAQS of 0.070 parts per million (ppm). For more information on the ozone NAAQS, please visit the [https://www.epa.gov/criteria-air-pollutants/naaqs-table EPA NAAQS Table] and the [https://www.epa.gov/ozone-pollution/table-historical-ozone-national-ambient-air-quality-standards-naaqs Table of Historical Ozone NAAQS] Data for this report represent ambient air, or outside air quality. The relationship between ambient concentrations and personal exposure can vary significantly depending upon the pollutant, activity patterns, and micro-environments. Data for this report came from the EPA and therefore may differ slightly from data from other sources.

Why Is This Important?

Ozone is a naturally occurring component of the earth's atmosphere at ground level and in the upper regions of the atmosphere. While upper atmospheric ozone protects the earth from the sun's harmful rays, ground-level ozone can be detrimental to the health of plants, animals, and human beings. Molecules of ozone are made up of three oxygen atoms (O3) and are chemically identical in the upper atmosphere and at ground level. The lungs of animals and humans have a thin liquid lining that protects lung tissue from normal amounts of ozone. However, sunlight and heat can create new ground-level ozone molecules from nitrogen oxides and volatile organic chemicals that are found naturally at the earth's surface, as well as in emissions from industrial facilities, electric utilities, motor vehicle exhaust, gasoline vapors, and chemical solvents in urbanized regions. Ozone is a principle component of urban smog and is measured in parts per million (ppm). Ozone can cause several adverse health effects in anyone, but especially in sensitive populations such as children, older adults, people with preexisting lung diseases such as asthma, and people who are physically active outdoors. Some of these health problems include painful breathing, chest tightness, headache, coughing, increased asthma symptoms, lung inflammation, and temporary reduction in lung capacity. Over time, ozone is associated with chronic lung problems and respiratory infections. Adverse health effects from ozone are more likely to occur when ozone levels exceed the EPA's standard, but are possible when ozone levels are below the standard, especially in sensitive populations. Ground-level ozone, not to be confused with the atmosphere's protective ozone layer, is created by reactions between environmental pollutants, light, and heat. Ozone is the main component of smog and is dangerous to health and the environment. The creation of ozone is facilitated by warm weather and sunshine; therefore, ozone levels are usually higher in the summer and in the mid-afternoon. Climate change may play a part in the creation of more ground-level ozone pollution. As temperatures increase, it is expected that the number of high ozone days will increase, since heat accelerates the nitrogen oxide and volatile organic compound reaction.^1^ Researchers have found that a combination of higher temperatures, sunlight, emissions, and air stagnation events (i.e., inversions) may result in an increase of ozone levels. However, more research is needed to accurately gauge what portion of ozone is actually increasing solely due to climate change.[[br]] [[br]] ---- 1. National Aeronautics and Space Administration (2004). The good, the bad and the ozone. Retrieved March 21, 2012 from the National Aeronautics and Space Administration: [http://www.nasa.gov/missions/earth/f-ozone.html]

Other Objectives

Physical exercise is essential to maintaining good health. In order to exercise safely, Utahns should refer to daily ozone levels by checking them at [http://www.cleanair.utah.gov]. If ozone levels are high, consider exercising indoors. The best time to exercise outdoors during summer months is before noon or after 6:00 p.m. If outdoor exercise is unavoidable during high ozone levels, consider light to moderate activity such as walking.

How Are We Doing?

The most urban counties in Utah often have days that do not comply with the new ozone standard of 0.070 ppm. The Utah Department of Environmental Quality (DEQ) is working to decrease the number of days over the ozone standard.

What Is Being Done?

In response to the new EPA ozone standard of 0.070 ppm, DEQ has begun fitting school buses with cleaner technology, and state office buildings have begun adopting more energy-efficient policies and practices. The DEQ 3-day air quality forecasting program uses a red, yellow, and green stoplight color code to inform the public about how they can help keep pollution levels low and safe. A green day informs the public that pollution levels are low, and they can safely drive and spend time outside. A yellow day informs the public that they should consider limiting driving to reduce pollution levels. A red day strongly encourages the public to reduce driving and other polluting activities to prevent pollution levels from exceeding the health standard. Ultimately, the air quality for Utah citizens is dependent upon each individual taking steps to reduce the amount of energy used and pollution emitted.

Available Services

Find out about current air quality conditions in your county by going to [http://www.cleanair.utah.gov]. This can help you make informed decisions about your health. The Utah DEQ 3-day air quality forecasting is available at [http://www.airquality.utah.gov]. This forecast helps the public make smart decisions under current air quality conditions. People can use this information to choose when to stay indoors and whether to use mass transit.


Related Indicators

Related Relevant Population Characteristics Indicators:


Related Health Care System Factors Indicators:


Related Health Status Outcomes Indicators:




Graphical Data Views

Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standard (NAAQS), Number of Days by County, Utah, 2017

::chart - missing::

CountyNumber of Days Exceeding NAAQS
Record Count: 13
Box Elder3
Cache0
Carbon0
Davis24
Duchesne9
Garfield3
Salt Lake32
San Juan1
Tooele17
Uintah11
Utah8
Washington1
Weber20

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] These values represent days when at least one air monitoring station showed a reading over the National Ambient Air Quality Standard (NAAQS) for ozone within a county.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Box Elder County, 2001-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 17
200118
200227
200316
20041
200519
200614
200717
20089
20091
20103
20110
201214
20134
20142
20152
20160
20173

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Cache County, 2000-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 18
200011
20012
20024
20037
20040
20053
20064
20079
20082
20090
20100
20110
20125
20131
20140
20152
20160
20170

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Carbon County, 2011-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 7
20111
20128
20132
20140
20152
20160
20170

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Data are not available prior to 2011 because either there were no air monitors in the county or 8-hour averages were not collected.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Davis County, 2000-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 18
200021
200117
200222
200314
20041
200526
200615
200714
200815
20095
20105
20112
20120
20133
20147
20154
20168
201724

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Duchesne County, 2011-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 7
201123
20124
201343
20142
20152
20168
20179

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Data are not available prior to 2011 because either there were no air monitors in the county or 8-hour averages were not collected.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Garfield County, 2011-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 7
20110
20122
20132
20140
20152
2016**
20173

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Data are not available prior to 2011 because either there were no air monitors in the county or 8-hour averages were not collected.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Salt Lake County, 2000-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 18
200030
200126
200232
200329
200415
200527
200640
200739
200818
200913
20109
201116
201216
201312
20146
201520
201613
201732

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, San Juan County, 2000-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 18
200011
20010
20027
20037
20046
20053
20062
20076
20084
20092
20102
20113
20125
20130
20140
20151
20160
20171

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Tooele County, 2005-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 13
200510
200612
200711
20083
20092
20104
20114
20127
20134
20141
20154
20165
201717

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Data are not available prior to 2005 because either there were no air monitors in the county or 8-hour averages were not collected.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Uintah County, 2007-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 11
20070
20080
20092
201047
201131
201210
201361
20148
20152
201611
201711

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Data are not available prior to 2007 because either there were no air monitors in the county or 8-hour averages were not collected.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Utah County, 2000-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 18
200023
200119
200223
200329
20043
200513
200627
200716
200811
20093
20107
20110
201212
20139
20148
20159
20167
20178

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Washington County, 2004-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 14
200411
200519
20067
20074
20086
20093
20108
20115
201212
20132
20141
20153
20160
20171

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Data are not available prior to 2004 because either there were no air monitors in the county or 8-hour averages were not collected.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Days by Year, Weber County, 2000-2017

::chart - missing::

YearNumber of Days Above Standard
Record Count: 18
200020
200117
200224
200325
20044
200522
200628
200728
200813
20094
20106
201111
201220
20137
20144
20158
20169
201720

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.

Data Source

U.S. Environmental Protection Agency, Air Quality System (AQS)


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Box Elder County, 2001-2017

::chart - missing::

YearNumber of Person-days
Record Count: 17
2001780,516
20021,189,026
2003712,768
200444,666
2005856,710
2006643,272
2007802,281
2008435,933
200949,372
2010150,441
20110
2012703,626
2013203,228
2014102,870
2015103,996
20160
2017162,237

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for ozone.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Cache County, 2000-2017

::chart - missing::

YearNumber of Person-days
Record Count: 18
20001,010,471
2001185,662
2002381,972
2003679,707
20040
2005301,503
2006404,944
2007932,616
2008213,648
20090
20100
20110
2012579,655
2013117,198
20140
2015240,120
20160
20170

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for ozone.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Carbon County, 2011-2017

::chart - missing::

YearNumber of Person-days
Record Count: 7
201121,329
2012169,936
201341,870
20140
201540,680
20160
20170

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for ozone. Data are not available prior to 2011 because there were no air monitors in the county, or 8-hour averages were not collected.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Davis County, 2000-2017

::chart - missing::

YearNumber of Person-days
Record Count: 18
20005,048,862
20014,159,679
20025,492,872
20033,578,148
2004262,189
20056,999,408
20064,182,000
20074,035,304
20084,437,015
20091,509,825
20101,539,890
2011624,222
20120
2013968,388
20142,306,136
20151,343,072
20162,738,248
20178,343,288

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county and the number of days over the daily National Ambient Air Quality Standard for ozone.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Duchesne County, 2011-2017

::chart - missing::

YearNumber of Person-days
Record Count: 7
2011429,502
201276,012
2013860,430
201440,520
201541,562
2016162,696
2017180,234

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county and the number of days over the daily National Ambient Air Quality Standard for ozone. Data are not available prior to 2011 because there were no air monitors in the county, or 8-hour averages were not collected.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Garfield County, 2011-2017

::chart - missing::

YearNumber of Person-days
Record Count: 7
20110
201210,170
201310,090
20140
20159,982
2016**
201715,234

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for ozone. Data are not available prior to 2011 because there were no air monitors in the county, or 8-hour averages were not collected.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Salt Lake County, 2000-2017

::chart - missing::

YearNumber of Person-days
Record Count: 18
200027,030,540
200123,679,500
200229,380,864
200326,819,258
200414,012,100
200525,595,001
200638,671,920
200738,365,041
200817,991,954
200913,218,335
20109,298,548
201116,776,544
201217,031,392
201312,969,132
20146,548,334
201522,092,440
201614,577,602
201736,340,768

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county and the number of days over the daily National Ambient Air Quality Standard for ozone.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, San Juan County, 2000-2017

::chart - missing::

YearNumber of Person-days
Record Count: 18
2000157,674
20010
200295,634
200394,997
200482,338
200540,959
200627,358
200784,168
200857,744
200929,028
201029,594
201144,361
201274,500
20130
20140
201515,707
20160
201715,356

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county and the number of days over the daily National Ambient Air Quality Standard for ozone.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Tooele County, 2005-2017

::chart - missing::

YearNumber of Person-days
Record Count: 13
2005492,580
2006617,796
2007592,031
2008167,727
2009114,436
2010234,068
2011237,080
2012419,104
2013242,996
201461,599
2015251,516
2016324,165
20171,146,752

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county and the number of days over the daily National Ambient Air Quality Standard for ozone. Data are not available prior to 2005 because there were no air monitors in the county, or 8-hour averages were not collected.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Uintah County, 2007-2017

::chart - missing::

YearNumber of Person-days
Record Count: 11
20070
20080
200965,862
20101,524,962
20111,031,525
2012346,820
20132,179,957
2014295,664
201575,578
2016400,103
2017386,650

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county and the number of days over the daily National Ambient Air Quality Standard for ozone. Data are not available prior to 2007 because there were no air monitors in the county, or 8-hour averages were not collected.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Utah County, 2000-2017

::chart - missing::

YearNumber of Person-days
Record Count: 18
20008,551,653
20017,327,749
20029,135,370
200311,778,582
20041,248,660
20055,599,061
200612,103,992
20077,513,184
20085,363,765
20091,514,403
20103,640,826
20110
20126,482,040
20134,971,474
20144,489,856
20155,173,164
20164,146,093
20174,851,400

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county and the number of days over the daily National Ambient Air Quality Standard for ozone.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Washington County, 2004-2017

::chart - missing::

YearNumber of Person-days
Record Count: 14
20041,212,277
20052,261,000
2006887,572
2007529,108
2008813,312
2009411,264
20101,107,544
2011707,705
20121,735,356
2013295,256
2014151,857
2015466,350
20160
2017165,662

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county and the number of days over the daily National Ambient Air Quality Standard for ozone. Data are not available prior to 2004 because there were no air monitors in the county, or 8-hour averages were not collected.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017


Maximum 8-hour Average Ozone Concentrations Above the National Ambient Air Quality Standards (NAAQS), Number of Person-days by Year, Weber County, 2000-2017

::chart - missing::

YearNumber of Person-days
Record Count: 18
20003,948,740
20013,401,241
20024,873,080
20035,132,975
2004831,176
20054,623,300
20065,954,368
20076,091,876
20082,907,788
2009912,472
20101,393,284
20112,574,242
20124,731,300
20131,669,696
2014962,144
20151,947,624
20162,228,040
20175,035,380

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.   [[br]] [[br]] Product of the total population of the county and the number of days over the daily National Ambient Air Quality Standard for ozone.

Data Sources

  • U.S. Environmental Protection Agency, Air Quality System (AQS)
  • Population Estimates: National Center for Health Statistics (NCHS) through a collaborative agreement with the U.S. Census Bureau, IBIS Version 2017

References and Community Resources

Utah Environmental Epidemiology Program[[br]] Air Pollution and Public Health in Utah[[br]] [http://www.health.utah.gov/utahair/pollutants/O3/][[br]] [[br]] AirNow[[br]] This U.S. Government website provides information on air quality from a collaboration of different agencies.[[br]] [http://airnow.gov][[br]] [[br]] Centers for Disease Control and Prevention[[br]] This CDC website provides information about the way air quality influences health outcomes.[[br]] [http://ephtracking.cdc.gov/showAirLanding][[br]] [[br]] Choose Clean Air[[br]] This DEQ website provides tips and trends regarding healthy choices and pollution levels.[[br]] [http://www.cleanair.utah.gov][[br]] [[br]] Environmental Protection Agency[[br]] This website provides information about ozone, adverse health effects, research, and regulations.[[br]] [https://cfpub.epa.gov/airnow/index.cfm?action=gooduphigh.index][[br]] [[br]] Three-day Air Quality Forecast[[br]] This site provides the three-day forecast as well as publications about Utah's compliance with the EPA's new ozone standard.[[br]] [http://www.airquality.utah.gov][[br]]

More Resources and Links

Evidence-based community health improvement ideas and interventions may be found at the following sites:

Additional indicator data by state and county may be found on these Websites:

Medical literature can be queried at the PubMed website.

For an on-line medical dictionary, click on this Dictionary link.

Page Content Updated On 10/22/2018, Published on 11/07/2018
The information provided above is from the Department of Health's Center for Health Data IBIS-PH web site (http://ibis.health.state.gov). The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Wed, 21 November 2018 2:55:13 from Department of Health, Center for Health Data, Indicator-Based Information System for Public Health Web site: http://ibis.health.state.gov ".

Content updated: Wed, 7 Nov 2018 14:40:36 MST