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Complete PHOM Indicator Profile Report of Air Quality: Particulate Matter (PM2.5)

Definition

Particulate matter that measures 2.5 micrometers in diameter or less is often called PM2.5. Particulate matter 10 (PM10) measures one-seventh the width of a strand of human hair, so one can imagine just how small PM2.5 really is. PM2.5 is composed of metals, allergens, nitrates, sulfates, organic chemicals, soil, and dust that are emitted from sources such as combustion products, soot from fireplaces, and blowing dust from construction sites and agricultural activities. PM2.5 levels are generally higher during the winter months due to weather, temperature, and inversions. The United States Environmental Protection Agency (EPA) PM2.5 standard states that daily averaged PM2.5 levels should not exceed 35 micrograms per cubic meter, while annually averaged PM2.5 levels should not exceed 12 micrograms per cubic meter^1^.[[br]] [[br]]

Numerator

This indicator report contains the following views: # Percent of days above the National Ambient Air Quality Standards (NAAQS) # Number of person-days above the NAAQS # Average annual ambient concentrations of PM2.5 # Percent of population living in counties exceeding NAAQS

Denominator

Where applicable, population based on U.S. Census Bureau estimates for July 1 of each year.

Data Interpretation Issues

Data on PM2.5 levels are only available where air monitors exist. The Environmental Protection Agency (EPA) and the Utah Department of Environmental Quality (DEQ) have scientifically determined where in Utah PM2.5 is likely to exceed the standard. Geographies reported will vary based on measurement type. 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; therefore, it may differ slightly from data to other sources. One reason for a possible difference is that this data includes [https://deq.utah.gov/air-quality/exceptional-events-program exceptional events], which includes air pollution generated from fireworks, construction, fires, and other sources.

Why Is This Important?

PM2.5 can get deep inside the lungs and cause a variety of symptoms, such as painful breathing, chest tightness, headache, and coughing. PM2.5 can exacerbate respiratory infections, trigger asthma attacks and symptoms, and cause temporary reductions in lung capacity. Respiratory symptoms are more likely to occur when PM2.5 levels exceed the EPA standard, but are possible when PM2.5 levels are below the standard, especially in sensitive populations. PM2.5 has been found to be associated with an increased risk of chronic lung disease^2^. In addition to these adverse outcomes, PM2.5 can influence the environment in ways that will eventually affect human health. Fine particles cause haze which reduces visibility. The long-term effects of PM2.5, which settles in the soil, natural water sources, forests, and agricultural areas, are still to be determined. Whether or not climate change has an effect on PM2.5 concentration has yet to be determined. However, as temperatures increase, PM2.5 concentration has been shown to increase in the United States, but this is not the general consensus of the scientific community. Researchers seem to agree that as precipitation increases, PM2.5 levels will decrease since it "clears" the air^3^. If precipitation events are seen to increase with climate change, it is reasonable to conclude that PM2.5 levels may decrease. PM2.5 concentrations could also be affected by air stagnation events (i.e., inversions). If air stagnation events increase in frequency with climate change, PM2.5 levels are likely to rise because these events trap the pollution at the Earth's surface^3^. More research is needed to accurately quantify to what extent PM2.5 levels will be affected by a changing climate.[[br]] [[br]]

Other Objectives

Physical exercise is essential to maintaining good health. In order to do this safely, refer to daily PM2.5 levels by checking them at [https://air.utah.gov/]. If PM2.5 levels are high, consider exercising indoors. If outdoor exercise is unavoidable during high PM2.5 levels, consider light to moderate activity such as walking.

How Are We Doing?

Several of the most urban counties in Utah have days that do not comply with the PM2.5 standard. This may be due in part to the unique geography and seasonal conditions in Utah. PM2.5 levels increase seasonally in the winter and often due to inversions. The Utah Department of Environmental Quality (DEQ) is working to decrease the number of days over the PM2.5 standard.

What Is Being Done?

The Utah Department of Environmental Quality (DEQ) is working to decrease PM2.5 emissions to comply with national standards. Because the majority of particulate matter is caused by automobile emissions, DEQ encourages the public to use mass transit and to stay indoors on days with high pollution levels, which you can check at [http://www.health.utah.gov/utahair]. In addition, DEQ has studied the effects of high particulate matter levels on children playing outside at recess so that schools may make informed decisions about when to keep children indoors. 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. A green day informs the public that pollution levels are low, and they can safely drive and spend time outside. A yellow day suggests citizens consider limiting their 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, air quality in Utah depends on each individual taking steps to reduce the amount of energy being used and pollution being emitted.

Available Services

The [http://www.health.utah.gov/utahair/ Air Quality and Public Health in Utah] web page provides a wide range of air quality-related topics. These topics include *[http://www.health.utah.gov/utahair/AQI/ Air Quality Index] *[http://www.health.utah.gov/utahair/pollutants/ Information about specific air pollutants] *Health effects from air pollution **[http://www.health.utah.gov/utahair/birthoutcomes/ Adverse birth outcomes] **[http://www.health.utah.gov/utahair/respiratory/#Asthma Asthma] **[http://www.health.utah.gov/utahair/respiratory/#COPD Chronic obstructive pulmonary disease] **[http://www.health.utah.gov/utahair/CAD/ Heart disease and heart attacks]

More Information

'''Air Quality and Public Health in Utah'''[[br]] This Utah Department of Health Website provides information on particulate matter, its sources, ways to reduce exposure, and trend data.[[br]] [http://www.health.utah.gov/utahair/pollutants/PM/] '''AirNow'''[[br]] This U.S. Government website provides information on air quality from a collaboration of different agencies.[[br]] [http://www.airnow.gov] '''Choose Clean Air Utah'''[[br]] This Utah Department of Environmental Quality website provides information about air pollution in Utah and information on how to make healthy choices.[[br]] [https://air.utah.gov/] '''Environmental Protection Agency (EPA)'''[[br]] These EPA web pages provide information about particulate matter (PM), adverse health effects, research, and regulations.[[br]] [https://www.epa.gov/pm-pollution/particulate-matter-pm-basics] '''Centers for Disease Control and Prevention (CDC)'''[[br]] These CDC websites provide information about specific air pollutants and the way it can harm human health.[[br]] *[http://www.cdc.gov/air/pollutants.htm Air Pollutants] *[http://www.cdc.gov/air/ Air Quality][[br]] [[br]] Citations:[[br]] # Environmental Protection Agency (2016). National Ambient Air Quality Standards (NAAQS). Retrieved November 18, 2016 from the EPA: [https://www.epa.gov/criteria-air-pollutants/naaqs-table]. # Utah Department of Health (2019). Particulate Matter (PM): Health Effects - Air Pollution and Public Health in Utah. Retrieved November 14, 2019 from [http://www.health.utah.gov/utahair/pollutants/PM/index.html#Health]. # Jacob DJ & Winner DA. (2009) Effect of climate change on air quality. Atmospheric Environment 43(1), 51-63.


Graphical Data Views

PM2.5: Percent of Population Living in Counties Meeting the National Ambient Air Quality Standard, Utah, 2000-2018

::chart - missing::

This is a state-level measure that uses county-level annual average PM2.5 concentrations. In any given year, if a county has more than one air quality monitor, then the maximum annual average (among monitors with complete data) is assigned as the annual average for that county. The NAAQS annual standard is designated at 12 micrograms per cubic meter of air; this is the primary standard value^1^. Populations exposed to more than 12 micrograms per cubic meter of PM2.5 are considered to be "exceeding" the NAAQS. Primary air quality standards provide public health protection, including protecting the health of "sensitive" populations such as asthmatics, children, and the elderly^1^.[[br]] [[br]] ---- # Environmental Protection Agency (2016). National Ambient Air Quality Standards (NAAQS). Retrieved September 10, 2019 from the EPA: [https://www.epa.gov/criteria-air-pollutants/naaqs-table].[[br]] [[br]]
Meeting, Exceeding Monitoring, NoYearPercent of Population
Record Count: 57
Meeting200042.9%
Meeting200128.3%
Meeting200236.8%
Meeting200337.2%
Meeting20047.3%
Meeting200544.6%
Meeting200650.9%
Meeting200724.9%
Meeting200820.9%
Meeting200918.8%
Meeting201077.9%
Meeting201191.1%
Meeting201291.2%
Meeting201322.0%
Meeting201490.0%
Meeting201590.0%
Meeting201691.3%
Meeting201791.3%
Meeting201892.9%
Exceeding200040.1%
Exceeding200160.8%
Exceeding200252.3%
Exceeding200339.2%
Exceeding200479.9%
Exceeding200542.7%
Exceeding200638.3%
Exceeding200764.3%
Exceeding200868.3%
Exceeding200970.4%
Exceeding201012.4%
Exceeding20110.0%
Exceeding20120.0%
Exceeding201368.5%
Exceeding20140.0%
Exceeding20150.0%
Exceeding20160.0%
Exceeding20170.0%
Exceeding20180.0%
No Monitoring200017.0%
No Monitoring200110.8%
No Monitoring200210.8%
No Monitoring200323.6%
No Monitoring200412.8%
No Monitoring200512.6%
No Monitoring200610.8%
No Monitoring200710.8%
No Monitoring200810.7%
No Monitoring200910.8%
No Monitoring20109.6%
No Monitoring20118.9%
No Monitoring20128.8%
No Monitoring20139.4%
No Monitoring201410.0%
No Monitoring201510.0%
No Monitoring20168.7%
No Monitoring20178.7%
No Monitoring20187.1%

Data Notes

Counties were categorized as either "exceeding," "meeting," or "no monitoring" according to the mean annual PM2.5 concentration. The annual population percentage for each of the three aforementioned categories was derived by summing the total county population in each category, and dividing by the total state population

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Box Elder County, 2000-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 19
20002.3%
20015.9%
20025.8%
20030.0%
20044.9%
20050.4%
20061.0%
20071.0%
20082.5%
20092.5%
20104.2%
20112.5%
20120.0%
20135.3%
20141.4%
20150.9%
20161.5%
20172.5%
20181.1%

Data Notes

Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Cache County, 2000-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 19
20001.0%
200112.2%
20024.1%
20031.4%
200410.9%
200510.2%
20061.4%
20072.5%
20083.6%
20098.0%
20105.5%
20112.7%
20120.8%
201313.4%
20143.6%
20150.8%
20162.2%
20174.7%
20181.4%

Data Notes

Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Davis County, 2000-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 19
20003.3%
20015.9%
20026.7%
20032.3%
20046.6%
20054.4%
20061.0%
20072.5%
20081.6%
20096.2%
20104.3%
20111.7%
20120.0%
20139.1%
20143.4%
20151.1%
20161.6%
20172.8%
20180.3%

Data Notes

Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Duchesne County, 2011-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 8
20110.0%
20121.2%
2013**
20140.3%
20150.3%
20160.0%
20170.3%
20180.8%

Data Notes

** Data not available. Percent reflects the percent of days sampled in the county during the year, not total days of the year. 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)


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Garfield County, 2000-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 19
20000.0%
20010.0%
20020.0%
20030.0%
20040.0%
20050.0%
20060.0%
20070.0%
20080.0%
20090.0%
20100.0%
20110.0%
20120.0%
20130.0%
2014**
20150.0%
20160.0%
20170.0%
20180.0%

Data Notes

** Data not available. Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Salt Lake County, 2000-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 19
20006.4%
20018.1%
20029.5%
20032.2%
200410.7%
20059.1%
20063.6%
20076.0%
20083.8%
20096.6%
20104.7%
20114.4%
20120.6%
201310.4%
20143.8%
20151.4%
20164.1%
20173.8%
20181.6%

Data Notes

Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, San Juan County, 2000-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 19
20000.0%
20010.0%
20020.0%
20030.0%
20040.0%
20050.0%
20060.0%
20070.0%
20080.0%
20090.0%
20100.0%
20110.0%
20120.0%
20130.0%
2014**
20150.0%
20160.0%
20170.0%
20180.0%

Data Notes

** Data not available. Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Tooele County, 2000-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 19
20000.0%
20011.8%
20024.2%
2003**
2004**
2005**
20060.0%
20070.4%
20080.9%
20092.2%
20101.6%
20110.8%
20120.0%
20133.5%
20140.0%
20150.0%
20160.6%
20170.3%
20181.1%

Data Notes

** Data not available. Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Uintah County, 2010-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 8
20100.0%
20110.0%
20121.1%
20130.0%
2014**
2015**
20160.0%
20170.0%

Data Notes

** Data not available. Percent reflects the percent of days sampled in the county during the year, not total days of the year. Data are not available prior to 2010 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)


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Utah County, 2000-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 19
20001.7%
20016.2%
20024.5%
20030.9%
20046.7%
20052.6%
20061.9%
20076.0%
20082.7%
20094.9%
20101.9%
20112.5%
20120.6%
20138.8%
20141.1%
20150.8%
20163.0%
20171.6%
20184.4%

Data Notes

Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Washington County, 2001-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 18
20010.0%
20020.0%
20030.0%
20040.0%
20050.0%
20060.0%
20070.0%
20080.0%
20090.0%
20100.0%
20110.0%
20120.0%
20130.0%
20140.0%
20150.0%
20160.0%
20170.0%
20180.8%

Data Notes

Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Wayne County, 2001-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 18
20010.0%
20020.0%
20030.0%
20040.0%
20050.0%
20060.0%
20070.0%
20080.0%
20090.0%
20100.0%
20110.0%
20120.0%
20130.0%
20140.0%
20150.0%
20160.0%
20170.0%
20180.0%

Data Notes

Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Percent of Days by Year, Weber County, 2000-2018

::chart - missing::

YearPercent of Days Sampled Over NAAQS
Record Count: 19
20000.9%
20015.6%
20028.1%
20030.8%
20047.3%
20051.6%
20061.2%
20073.3%
20081.9%
20093.3%
20104.9%
20113.0%
20120.8%
20139.3%
20141.4%
20151.8%
20163.0%
20172.5%
20180.6%

Data Notes

Percent reflects the percent of days sampled in the county during the year, not total days of the year.

Data Source

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


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Box Elder County, 2001-2018

::chart - missing::

YearPerson-days
Record Count: 18
2001930,635
2002930,677
20030
2004802,112
2005133,309
2006276,722
2007294,555
2008441,988
2009558,644
2010485,269
2011410,705
20120
2013992,462
2014260,286
2015170,268
2016291,850
2017486,539
2018220,624

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Cache County, 2000-2018

::chart - missing::

YearPerson-days
Record Count: 19
2000352,057
20014,123,599
20021,425,567
2003503,274
20043,929,298
20053,748,989
2006506,231
2007934,222
20081,388,071
20093,200,369
20102,267,947
20111,147,855
2012346,880
20135,711,171
20141,532,071
2015358,484
2016982,607
20172,136,895
2018635,404

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Davis County, 2000-2018

::chart - missing::

YearPerson-days
Record Count: 19
20002,922,209
20015,296,128
20026,078,487
2003**
20046,325,703
20054,274,350
2006946,387
20072,588,071
20081,759,868
20096,822,446
20104,798,869
20111,980,483
20120
201310,691,805
20144,103,861
20151,343,724
20162,054,154
20173,481,818
2018346,613

Data Notes

** Data not available. Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Duchesne County, 2011-2018

::chart - missing::

YearPerson-days
Record Count: 8
20110
201281,850
2013**
201420,651
201521,970
20160
201720,353
201860,481

Data Notes

** Data not available. Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5. 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 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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Garfield County, 2000-2018

::chart - missing::

YearPerson-days
Record Count: 19
20000
20010
20020
20030
20040
20050
20060
20070
20080
20090
20100
20110
20120
20130
20140
20150
20160
20170
20180

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Salt Lake County, 2000-2018

::chart - missing::

YearPerson-days
Record Count: 19
200021,212,216
200126,893,081
200231,736,383
20037,561,181
200436,619,222
200531,451,990
200612,562,573
200721,651,163
200813,973,251
200924,420,366
201017,569,940
201116,747,294
20122,136,022
201341,137,066
201415,281,042
20155,513,696
201616,771,036
201715,947,685
20186,899,661

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, San Juan County, 2000-2018

::chart - missing::

YearNumber of Person-days
Record Count: 19
20000
20010
20020
20030
20040
20050
20060
20070
20080
20090
20100
20110
20120
20130
20140
20150
20160
20170
20180

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Tooele County, 2000-2018

::chart - missing::

YearPerson-days
Record Count: 19
20000
2001276,777
2002684,892
2003**
2004**
2005**
20060
200786,437
2008183,661
2009457,372
2010350,187
2011179,292
20120
2013781,226
20140
20150
2016136,621
201766,440
2018280,677

Data Notes

** Data not available. Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Uintah County, 2010-2018

::chart - missing::

YearPerson-days
Record Count: 9
20100
20110
2012137,819
20130
20140
20150
20160
20170
20180

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5. Data are not available prior to 2009 because either 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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Utah County, 2000-2018

::chart - missing::

YearPerson-days
Record Count: 19
20002,279,945
20018,699,581
20026,567,338
20031,274,930
200410,163,468
20054,071,594
20063,141,658
200710,352,228
20084,858,840
20099,083,642
20103,644,118
20114,784,147
20121,083,456
201317,648,445
20142,251,415
20151,713,941
20166,504,474
20173,630,527
20189,947,319

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Washington County, 2001-2018

::chart - missing::

YearPerson-days
Record Count: 18
20010
20020
20030
20040
20050
20060
20070
20080
20090
20100
20110
20120
20130
20140
20150
20160
20170
2018526,432

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Wayne County, 2001-2018

::chart - missing::

YearPerson-days
Record Count: 18
20010
20020
20030
20040
20050
20060
20070
20080
20090
20100
20110
20120
20130
20140
20150
20160
20170
20180

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5 Levels Over the National Ambient Air Quality Standard: Person-days by Year, Weber County, 2000-2018

::chart - missing::

YearPerson-days
Record Count: 19
2000648,581
20014,060,281
20025,973,381
2003607,026
20045,551,840
20051,257,958
2006962,481
20072,628,536
20081,567,521
20092,739,355
20104,177,225
20112,577,530
2012707,138
20138,099,448
20141,201,180
20151,614,003
20162,671,321
20172,270,698
2018514,641

Data Notes

Product of the total population of the county (estimate) and the number of days over the daily National Ambient Air Quality Standard for PM2.5.

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 2018


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Box Elder County, 2001-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 18
20019.31
200210.64
20037.09
200410.1
20057.99
20068.1
20078.79
20087.87
20099.24
20108.75
20118.44
20126.88
20139.54
20146.11
20155.92
20167.7
20178.93
20188.57

Data Notes

Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Cache County, 2000-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 19
20008.7
200115.6
200214.6
20038.3
200415.1
200513.24
200610.8
200711.53
200813.81
200914.69
201014
201111.97
201210
201317.67
20148.79
20158.48
20168.7
20179.97
20189.39

Data Notes

Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Davis County, 2000-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 19
20009.04
200110.07
200211.36
2003**
200413.31
200510.29
20069.15
200711.92
200810.57
200910.36
20109.42
20118.55
20128.21
201311
20147.5
20156.69
20168.4
20179.38
20188.45

Data Notes

** Data not available. Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Duchesne County, 2011-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 8
20114.6
20127.5
2013**
20145.7
20156.0
20166.0
20176.2
20186.8

Data Notes

** Data not available. Data are not available prior to 2011 because either there were no air monitors in the county or 8-hour averages were not collected. Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Garfield County, 2000-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 19
20002.7
20012.7
20022.8
20032.3
20042.4
20052.4
20062.5
20073.0
20082.9
20093.0
20102.1
20112.3
20122.6
20132.3
20142.1
20152.1
20162.1
20172.3
20182.5

Data Notes

Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Salt Lake County, 2000-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 19
200014.2
200114.1
200215.4
200312.3
200417.8
200514.1
200613.0
200713.4
200812.4
200913.0
201010.6
20119.0
20129.0
201312.8
20148.0
20158.7
20169.5
20179.5
201810.0

Data Notes

Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), San Juan County, 2000-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 19
20002.9
20013.0
20023.8
20032.9
20042.5
20052.5
20062.6
20073.1
20083.0
20092.9
20102.5
20112.4
20123.1
20132.5
20142.5
20152.3
20162.0
20172.5
20182.9

Data Notes

Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Tooele County, 2000-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 19
20007.1
20017.9
20029.4
2003**
2004**
2005**
20066.6
20077.3
200810.4
200912.2
201010.9
20117.2
20127.6
20139.2
20146.3
20155.2
20166.3
20177.5
20188.6

Data Notes

** Data unavailable. Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Uintah County, 2010-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 9
20107.5
20117.2
20127.9
20138.9
2014**
2015**
20165.7
20175.7
20185.6

Data Notes

** Data unavailable. Data are not available prior to 2010 because either there were no air monitors in the county or 8-hour averages were not collected. Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Utah County, 2000-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 19
200010.1
200111.8
200211.6
20039.2
200412.9
200510.2
200610.5
200713.6
200812.7
200912.2
201010.4
201110.6
20129.8
201312.8
20147.4
20158.5
20168.9
20179.0
20188.9

Data Notes

Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Washington County, 2000-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 19
20002.6
20013.3
20023.4
20033.4
20042.8
20052.9
20063.3
20073.9
20083.6
20093.7
20103.7
20114.3
20126.0
20134.0
20144.6
20154.7
20165.2
20174.9
20186.5

Data Notes

Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Wayne County, 2001-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 18
20012.8
20022.8
20032.6
20043.0
20052.6
20062.8
20073.0
20083.0
20092.7
20102.2
20112.4
20123.0
20132.4
20142.3
20152.3
20162.3
20172.5
20183.0

Data Notes

Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


PM2.5: Average Ambient Concentrations (based on seasonal averages and daily measurement), Weber County, 2000-2018

::chart - missing::

YearAverage Ambient Concentration (mcg/cubic meter)
Record Count: 19
20007.9
200110.4
200214.5
200310.0
200413.9
200510.5
20069.4
200712.8
200812.3
200913.4
201012.4
201110.5
201210.2
201314.4
201410.7
201510.0
20169.2
20179.2
20189.0

Data Notes

Average ambient concentrations are calculated by collecting monitoring sites with complete quarterly and annual data. Quarterly averages are calculated, then the average of these four values results in the annual average for a county. If there are multiple monitors in a county, the one with the highest annual average is used.

Data Source

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


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Box Elder County, 2000-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 18
20017
20027
20030
20046
20051
20062
20072
20083
20094
20109
20118
20120
201318
20145
20153
20164
20179
20184

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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Cache County, 2000-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 19
20001
200114
200211
20035
200439
200537
20065
20079
200813
200929
201020
201110
20123
201344
201413
20153
20168
201717
20185

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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Davis County, 2000-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 19
20004
20017
20028
2003**
20048
20055
20061
20073
20082
20097
20105
20112
20120
201310
20144
20153
20166
201710
20181

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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Duchesne County, 2011-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 8
20110
20123
2013**
20141
20151
20160
20171
20183

Data Notes

** Data not available. These data include "exceptional events", such as high winds, fires, construction, fireworks, etc. 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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Garfield County, 2000-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 19
20000
20010
20020
20030
20040
20050
20060
20070
20080
20090
20100
20110
20120
20130
20140
20150
20160
20170
20180

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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Salt Lake County, 2000-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 19
200022
200128
200234
20038
200439
200533
200613
200722
200814
200924
201017
201116
20122
201338
201414
20155
201615
201714
20186

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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, San Juan County, 2000-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 19
20000
20010
20020
20030
20040
20050
20060
20070
20080
20090
20100
20110
20120
20130
20140
20150
20160
20170
20180

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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Tooele County, 2000-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 19
20000
20012
20025
2003**
2004**
2005**
20060
20071
20083
20098
20106
20113
20120
201312
20140
20150
20162
20171
20184

Data Notes

** Data not available. These data include "exceptional events", such as high winds, fires, construction, fireworks, etc.

Data Source

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


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Uintah County, 2010-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 9
20100
20110
20124
20130
20140
20150
20160
20170
20180

Data Notes

These data include "exceptional events", such as high winds, fires, construction, fireworks, etc. Data are not available prior to 2010 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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Utah County, 2000-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 19
20006
200122
200216
20033
200424
20059
20067
200722
200810
200918
20107
20119
20122
201332
20144
20153
201611
20176
201816

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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Washington County, 2001-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 18
20010
20020
20030
20040
20050
20060
20070
20080
20090
20100
20110
20120
20130
20140
20150
20160
20170
20183

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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Wayne County, 2001-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 18
20010
20020
20030
20040
20050
20060
20070
20080
20090
20100
20110
20120
20130
20140
20150
20160
20170
20180

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)


Average PM2.5 Levels Over the National Ambient Air Quality Standard: Number of Days by Year, Weber County, 2000-2018

::chart - missing::

YearNumber of Days Exceeded
Record Count: 19
20001
20017
200210
20031
20049
20052
20064
200712
20087
200912
201018
201111
20123
201334
20145
20156
201610
20179
20182

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)


Page Content Updated On 09/10/2019, Published on 11/15/2019
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 Fri, 13 December 2019 9:40:16 from Department of Health, Center for Health Data, Indicator-Based Information System for Public Health Web site: http://ibis.health.state.gov ".

Content updated: Fri, 15 Nov 2019 12:00:55 MST