EnviroNearby

Tarrant County, Texas air quality history

Daily Air Quality Index summaries from EPA monitors in Tarrant, Texas, 1980–2025.

32%
Good days in 2025
56
Median daily AQI, 2025
30
Days above 100 in 2025
365
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Tarrant, Texas on 365 days. 116 of those days (32%) were in the Good range, and the median daily AQI was 56. That median is higher than the typical monitored county in Texas (median 43.5 across 44 counties), and higher than the typical monitored U.S. county (40). The main pollutant was fine particles (PM2.5) on 218 days. Across the years with fuller monitoring, the share of Good days fell: an average of 60% in 1980–1982 versus 31% in 2023–2025.

How the days broke down each year

Each bar is one year. The colored segments show the share of monitored days that fell in each AQI category.

Share of monitored days in each AQI category, by year0%25%50%75%100%1980: Good 180 of 366 days1980: Moderate 104 of 366 days1980: Unhealthy for Sensitive Groups 54 of 366 days1980: Unhealthy 25 of 366 days1980: Very Unhealthy 3 of 366 days19801981: Good 243 of 365 days1981: Moderate 87 of 365 days1981: Unhealthy for Sensitive Groups 23 of 365 days1981: Unhealthy 12 of 365 days1982: Good 229 of 364 days1982: Moderate 90 of 364 days1982: Unhealthy for Sensitive Groups 22 of 364 days1982: Unhealthy 19 of 364 days1982: Very Unhealthy 4 of 364 days1983: Good 217 of 365 days1983: Moderate 84 of 365 days1983: Unhealthy for Sensitive Groups 34 of 365 days1983: Unhealthy 26 of 365 days1983: Very Unhealthy 4 of 365 days1984: Good 190 of 366 days1984: Moderate 95 of 366 days1984: Unhealthy for Sensitive Groups 42 of 366 days1984: Unhealthy 26 of 366 days1984: Very Unhealthy 13 of 366 days1985: Good 207 of 365 days1985: Moderate 102 of 365 days1985: Unhealthy for Sensitive Groups 36 of 365 days1985: Unhealthy 13 of 365 days1985: Very Unhealthy 7 of 365 days19851986: Good 233 of 364 days1986: Moderate 81 of 364 days1986: Unhealthy for Sensitive Groups 29 of 364 days1986: Unhealthy 19 of 364 days1986: Very Unhealthy 2 of 364 days1987: Good 232 of 365 days1987: Moderate 86 of 365 days1987: Unhealthy for Sensitive Groups 31 of 365 days1987: Unhealthy 15 of 365 days1987: Very Unhealthy 1 of 365 days1988: Good 199 of 366 days1988: Moderate 96 of 366 days1988: Unhealthy for Sensitive Groups 45 of 366 days1988: Unhealthy 22 of 366 days1988: Very Unhealthy 4 of 366 days1989: Good 226 of 365 days1989: Moderate 102 of 365 days1989: Unhealthy for Sensitive Groups 21 of 365 days1989: Unhealthy 15 of 365 days1989: Very Unhealthy 1 of 365 days1990: Good 246 of 365 days1990: Moderate 81 of 365 days1990: Unhealthy for Sensitive Groups 24 of 365 days1990: Unhealthy 10 of 365 days1990: Very Unhealthy 4 of 365 days19901991: Good 241 of 362 days1991: Moderate 82 of 362 days1991: Unhealthy for Sensitive Groups 20 of 362 days1991: Unhealthy 12 of 362 days1991: Very Unhealthy 7 of 362 days1992: Good 276 of 366 days1992: Moderate 69 of 366 days1992: Unhealthy for Sensitive Groups 16 of 366 days1992: Unhealthy 3 of 366 days1992: Very Unhealthy 2 of 366 days1993: Good 289 of 365 days1993: Moderate 48 of 365 days1993: Unhealthy for Sensitive Groups 21 of 365 days1993: Unhealthy 7 of 365 days1994: Good 225 of 365 days1994: Moderate 81 of 365 days1994: Unhealthy for Sensitive Groups 29 of 365 days1994: Unhealthy 24 of 365 days1994: Very Unhealthy 6 of 365 days1995: Good 212 of 365 days1995: Moderate 86 of 365 days1995: Unhealthy for Sensitive Groups 41 of 365 days1995: Unhealthy 18 of 365 days1995: Very Unhealthy 8 of 365 days19951996: Good 242 of 366 days1996: Moderate 82 of 366 days1996: Unhealthy for Sensitive Groups 29 of 366 days1996: Unhealthy 11 of 366 days1996: Very Unhealthy 2 of 366 days1997: Good 247 of 365 days1997: Moderate 78 of 365 days1997: Unhealthy for Sensitive Groups 26 of 365 days1997: Unhealthy 12 of 365 days1997: Very Unhealthy 2 of 365 days1998: Good 237 of 364 days1998: Moderate 71 of 364 days1998: Unhealthy for Sensitive Groups 35 of 364 days1998: Unhealthy 19 of 364 days1998: Very Unhealthy 2 of 364 days1999: Good 174 of 365 days1999: Moderate 138 of 365 days1999: Unhealthy for Sensitive Groups 30 of 365 days1999: Unhealthy 19 of 365 days1999: Very Unhealthy 4 of 365 days2000: Good 74 of 366 days2000: Moderate 241 of 366 days2000: Unhealthy for Sensitive Groups 36 of 366 days2000: Unhealthy 15 of 366 days20002001: Good 89 of 365 days2001: Moderate 223 of 365 days2001: Unhealthy for Sensitive Groups 32 of 365 days2001: Unhealthy 18 of 365 days2001: Very Unhealthy 3 of 365 days2002: Good 99 of 365 days2002: Moderate 212 of 365 days2002: Unhealthy for Sensitive Groups 27 of 365 days2002: Unhealthy 22 of 365 days2002: Very Unhealthy 5 of 365 days2003: Good 76 of 365 days2003: Moderate 237 of 365 days2003: Unhealthy for Sensitive Groups 28 of 365 days2003: Unhealthy 22 of 365 days2003: Very Unhealthy 2 of 365 days2004: Good 100 of 366 days2004: Moderate 220 of 366 days2004: Unhealthy for Sensitive Groups 35 of 366 days2004: Unhealthy 9 of 366 days2004: Very Unhealthy 2 of 366 days2005: Good 84 of 365 days2005: Moderate 214 of 365 days2005: Unhealthy for Sensitive Groups 43 of 365 days2005: Unhealthy 21 of 365 days2005: Very Unhealthy 3 of 365 days20052006: Good 106 of 365 days2006: Moderate 207 of 365 days2006: Unhealthy for Sensitive Groups 32 of 365 days2006: Unhealthy 18 of 365 days2006: Very Unhealthy 2 of 365 days2007: Good 97 of 365 days2007: Moderate 238 of 365 days2007: Unhealthy for Sensitive Groups 25 of 365 days2007: Unhealthy 4 of 365 days2007: Very Unhealthy 1 of 365 days2008: Good 105 of 366 days2008: Moderate 227 of 366 days2008: Unhealthy for Sensitive Groups 30 of 366 days2008: Unhealthy 4 of 366 days2009: Good 126 of 365 days2009: Moderate 204 of 365 days2009: Unhealthy for Sensitive Groups 25 of 365 days2009: Unhealthy 10 of 365 days2010: Good 135 of 365 days2010: Moderate 212 of 365 days2010: Unhealthy for Sensitive Groups 13 of 365 days2010: Unhealthy 5 of 365 days20102011: Good 113 of 365 days2011: Moderate 207 of 365 days2011: Unhealthy for Sensitive Groups 29 of 365 days2011: Unhealthy 16 of 365 days2012: Good 114 of 366 days2012: Moderate 209 of 366 days2012: Unhealthy for Sensitive Groups 35 of 366 days2012: Unhealthy 6 of 366 days2012: Very Unhealthy 2 of 366 days2013: Good 141 of 365 days2013: Moderate 197 of 365 days2013: Unhealthy for Sensitive Groups 23 of 365 days2013: Unhealthy 4 of 365 days2014: Good 179 of 365 days2014: Moderate 171 of 365 days2014: Unhealthy for Sensitive Groups 14 of 365 days2014: Unhealthy 1 of 365 days2015: Good 185 of 365 days2015: Moderate 155 of 365 days2015: Unhealthy for Sensitive Groups 23 of 365 days2015: Unhealthy 2 of 365 days20152016: Good 197 of 366 days2016: Moderate 161 of 366 days2016: Unhealthy for Sensitive Groups 7 of 366 days2016: Unhealthy 1 of 366 days2017: Good 177 of 365 days2017: Moderate 175 of 365 days2017: Unhealthy for Sensitive Groups 13 of 365 days2018: Good 156 of 365 days2018: Moderate 190 of 365 days2018: Unhealthy for Sensitive Groups 16 of 365 days2018: Unhealthy 3 of 365 days2019: Good 176 of 365 days2019: Moderate 175 of 365 days2019: Unhealthy for Sensitive Groups 14 of 365 days2020: Good 163 of 366 days2020: Moderate 187 of 366 days2020: Unhealthy for Sensitive Groups 13 of 366 days2020: Unhealthy 3 of 366 days20202021: Good 161 of 365 days2021: Moderate 190 of 365 days2021: Unhealthy for Sensitive Groups 12 of 365 days2021: Unhealthy 1 of 365 days2021: Very Unhealthy 1 of 365 days2022: Good 132 of 365 days2022: Moderate 211 of 365 days2022: Unhealthy for Sensitive Groups 20 of 365 days2022: Unhealthy 2 of 365 days2023: Good 99 of 365 days2023: Moderate 239 of 365 days2023: Unhealthy for Sensitive Groups 23 of 365 days2023: Unhealthy 4 of 365 days2024: Good 130 of 366 days2024: Moderate 206 of 366 days2024: Unhealthy for Sensitive Groups 24 of 366 days2024: Unhealthy 5 of 366 days2024: Very Unhealthy 1 of 366 days2025: Good 116 of 365 days2025: Moderate 219 of 365 days2025: Unhealthy for Sensitive Groups 28 of 365 days2025: Unhealthy 2 of 365 days2025
  • Good
  • Moderate
  • Unhealthy for Sensitive Groups
  • Unhealthy
  • Very Unhealthy
  • Hazardous

Typical and high-end AQI over time

The median is the middle day of the year. The 90th percentile is the level that only the highest 10% of days exceeded.

Median and 90th-percentile daily AQI, by year0501001502001980: 90th percentile AQI 1401981: 90th percentile AQI 1001982: 90th percentile AQI 1221983: 90th percentile AQI 1431984: 90th percentile AQI 1561985: 90th percentile AQI 1221986: 90th percentile AQI 1221987: 90th percentile AQI 1151988: 90th percentile AQI 1361989: 90th percentile AQI 1011990: 90th percentile AQI 1011991: 90th percentile AQI 1011992: 90th percentile AQI 801993: 90th percentile AQI 931994: 90th percentile AQI 1431995: 90th percentile AQI 1331996: 90th percentile AQI 1051997: 90th percentile AQI 1011998: 90th percentile AQI 1291999: 90th percentile AQI 1222000: 90th percentile AQI 1222001: 90th percentile AQI 1262002: 90th percentile AQI 1292003: 90th percentile AQI 1332004: 90th percentile AQI 1122005: 90th percentile AQI 1332006: 90th percentile AQI 1262007: 90th percentile AQI 902008: 90th percentile AQI 932009: 90th percentile AQI 1002010: 90th percentile AQI 802011: 90th percentile AQI 1082012: 90th percentile AQI 1052013: 90th percentile AQI 912014: 90th percentile AQI 762015: 90th percentile AQI 832016: 90th percentile AQI 692017: 90th percentile AQI 772018: 90th percentile AQI 842019: 90th percentile AQI 742020: 90th percentile AQI 772021: 90th percentile AQI 792022: 90th percentile AQI 902023: 90th percentile AQI 932024: 90th percentile AQI 972025: 90th percentile AQI 971980: Median AQI 511981: Median AQI 461982: Median AQI 471983: Median AQI 461984: Median AQI 481985: Median AQI 471986: Median AQI 441987: Median AQI 441988: Median AQI 481989: Median AQI 471990: Median AQI 441991: Median AQI 431992: Median AQI 411993: Median AQI 381994: Median AQI 461995: Median AQI 471996: Median AQI 441997: Median AQI 411998: Median AQI 441999: Median AQI 512000: Median AQI 612001: Median AQI 602002: Median AQI 582003: Median AQI 612004: Median AQI 562005: Median AQI 602006: Median AQI 562007: Median AQI 572008: Median AQI 562009: Median AQI 552010: Median AQI 532011: Median AQI 572012: Median AQI 552013: Median AQI 542014: Median AQI 512015: Median AQI 502016: Median AQI 482017: Median AQI 512018: Median AQI 532019: Median AQI 512020: Median AQI 522021: Median AQI 522022: Median AQI 542023: Median AQI 572024: Median AQI 542025: Median AQI 561980198519901995200020052010201520202025
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 2025

On each monitored day, the AQI reflects whichever measured pollutant had the highest index. This counts how many days each pollutant set the AQI. A pollutant that was not measured here cannot appear.

PollutantDays as main pollutantShare of monitored days
Fine particles (PM2.5)21860%
Ozone14239%
Nitrogen dioxide (NO₂)51%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2025365116219282005697162PM2.5
2024366130206245105497203PM2.5
202336599239234005793172PM2.5
2022365132211202005490172PM2.5
2021365161190121105279209PM2.5
2020366163187133005277159PM2.5
2019365176175140005174147PM2.5
2018365156190163005384166PM2.5
2017365177175130005177143PM2.5
201636619716171004869174PM2.5
2015365185155232005083172PM2.5
2014365179171141005176156PM2.5
2013365141197234005491187PM2.5
20123661142093562055105205PM2.5
201136511320729160057108195PM2.5
2010365135212135005380172PM2.5
200936512620425100055100187PM2.5
2008366105227304005693182PM2.5
200736597238254105790217PM2.5
200636510620732182056126202PM2.5
20053658421443213060133213PM2.5
20043661002203592056112203PM2.5
20033657623728222061133203PM2.5
20023659921227225058129223PM2.5
20013658922332183060126221PM2.5
20003667424136150061122200PM2.5
199936517413830194051122232Ozone
19983642377135192044129212Ozone
19973652477826122041101201Ozone
19963662428229112044105210Ozone
19953652128641188047133219Ozone
19943652258129246046143214Ozone
199336528948217003893197Ozone
199236627669163204180214Ozone
19913622418220127043101242Ozone
19903652468124104044101216Ozone
198936522610221151047101206Ozone
19883661999645224048136210Ozone
19873652328631151044115216Ozone
19863642338129192044122221Ozone
198536520710236137047122226Ozone
198436619095422613048156254Ozone
19833652178434264046143229Ozone
19823642299022194047122233Ozone
19813652438723120046100200Ozone
198036618010454253051140219Ozone

What this data can and can’t tell you

It is a county-level summary. EPA reports one AQI per day for the county, based on the monitors operating there. Air at a particular street, school or home can differ, especially near roads, industry or wildfire smoke.

It is not a health assessment. The AQI is EPA’s scale for communicating daily air quality. A county’s history can’t tell you what the health risk is for any particular person. For daily conditions and health guidance, see AirNow.

Rules change over time. EPA has revised AQI breakpoints, most recently for fine particles in 2024, so some year-to-year change can reflect the scale rather than the air.

Counties in Texas with a similar median AQI in 2025

All monitored counties in Texas

Source: U.S. EPA AirData, “Annual AQI by County” files for 1980–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem