EnviroNearby

Indian River County, Florida air quality history

Daily Air Quality Index summaries from EPA monitors in Indian River, Florida, 2001–2025.

94%
Good days in 2025
37
Median daily AQI, 2025
0
Days above 100 in 2025
321
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Indian River, Florida on 321 days. 302 of those days (94%) were in the Good range, and the median daily AQI was 37. That median is lower than the typical monitored county in Florida (median 41 across 38 counties), and lower than the typical monitored U.S. county (40). The main pollutant was ozone on 321 days. Across the years with fuller monitoring, the share of Good days rose: an average of 91% in 2001–2003 versus 97% 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%2001: Good 167 of 175 days2001: Moderate 5 of 175 days2001: Unhealthy for Sensitive Groups 3 of 175 days20012002: Good 292 of 336 days2002: Moderate 41 of 336 days2002: Unhealthy for Sensitive Groups 3 of 336 days2003: Good 312 of 347 days2003: Moderate 30 of 347 days2003: Unhealthy for Sensitive Groups 5 of 347 days20032004: Good 247 of 296 days2004: Moderate 46 of 296 days2004: Unhealthy for Sensitive Groups 3 of 296 days2005: Good 285 of 343 days2005: Moderate 52 of 343 days2005: Unhealthy for Sensitive Groups 6 of 343 days20052006: Good 248 of 339 days2006: Moderate 83 of 339 days2006: Unhealthy for Sensitive Groups 8 of 339 days2007: Good 256 of 310 days2007: Moderate 52 of 310 days2007: Unhealthy for Sensitive Groups 2 of 310 days20072008: Good 307 of 349 days2008: Moderate 38 of 349 days2008: Unhealthy for Sensitive Groups 4 of 349 days2009: Good 288 of 308 days2009: Moderate 20 of 308 days20092010: Good 288 of 339 days2010: Moderate 51 of 339 days2011: Good 316 of 346 days2011: Moderate 30 of 346 days20112012: Good 324 of 358 days2012: Moderate 33 of 358 days2012: Unhealthy for Sensitive Groups 1 of 358 days2013: Good 302 of 330 days2013: Moderate 28 of 330 days20132014: Good 315 of 349 days2014: Moderate 33 of 349 days2014: Unhealthy for Sensitive Groups 1 of 349 days2015: Good 320 of 333 days2015: Moderate 13 of 333 days20152016: Good 316 of 340 days2016: Moderate 24 of 340 days2017: Good 274 of 302 days2017: Moderate 27 of 302 days2017: Unhealthy for Sensitive Groups 1 of 302 days20172018: Good 325 of 356 days2018: Moderate 30 of 356 days2018: Unhealthy for Sensitive Groups 1 of 356 days2019: Good 324 of 335 days2019: Moderate 11 of 335 days20192020: Good 323 of 338 days2020: Moderate 15 of 338 days2021: Good 345 of 360 days2021: Moderate 15 of 360 days20212022: Good 349 of 357 days2022: Moderate 8 of 357 days2023: Good 350 of 358 days2023: Moderate 8 of 358 days20232024: Good 344 of 348 days2024: Moderate 4 of 348 days2025: Good 302 of 321 days2025: Moderate 19 of 321 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 year0501002001: 90th percentile AQI 472002: 90th percentile AQI 582003: 90th percentile AQI 512004: 90th percentile AQI 672005: 90th percentile AQI 712006: 90th percentile AQI 742007: 90th percentile AQI 672008: 90th percentile AQI 542009: 90th percentile AQI 492010: 90th percentile AQI 582011: 90th percentile AQI 492012: 90th percentile AQI 502013: 90th percentile AQI 502014: 90th percentile AQI 502015: 90th percentile AQI 452016: 90th percentile AQI 482017: 90th percentile AQI 502018: 90th percentile AQI 492019: 90th percentile AQI 472020: 90th percentile AQI 472021: 90th percentile AQI 472022: 90th percentile AQI 442023: 90th percentile AQI 442024: 90th percentile AQI 442025: 90th percentile AQI 482001: Median AQI 362002: Median AQI 382003: Median AQI 382004: Median AQI 392005: Median AQI 382006: Median AQI 432007: Median AQI 382008: Median AQI 372009: Median AQI 372010: Median AQI 392011: Median AQI 382012: Median AQI 372013: Median AQI 372014: Median AQI 372015: Median AQI 342016: Median AQI 392017: Median AQI 382018: Median AQI 362019: Median AQI 362020: Median AQI 372021: Median AQI 362022: Median AQI 332023: Median AQI 342024: Median AQI 352025: Median AQI 372001200320052007200920112013201520172019202120232025
  • 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
Ozone321100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2025321302190000374887Ozone
202434834440000354464Ozone
202335835080000344474Ozone
202235734980000334467Ozone
2021360345150000364774Ozone
2020338323150000374787Ozone
2019335324110000364790Ozone
20183563253010003649101Ozone
20173022742710003850101Ozone
2016340316240000394884Ozone
2015333320130000344584Ozone
20143493153310003750105Ozone
2013330302280000375093Ozone
20123583243310003750105Ozone
2011346316300000384987Ozone
2010339288510000395890Ozone
2009308288200000374987Ozone
20083493073840003754126Ozone
20073102565220003867115Ozone
20063392488380004374150Ozone
20053432855260003871136Ozone
20042962474630003967112Ozone
20033473123050003851150Ozone
20023362924130003858122Ozone
2001175167530003647147Ozone

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 Florida with a similar median AQI in 2025

All monitored counties in Florida

Source: U.S. EPA AirData, “Annual AQI by County” files for 2001–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem