EnviroNearby

Albemarle County, Virginia air quality history

Daily Air Quality Index summaries from EPA monitors in Albemarle, Virginia, 2008–2025.

81%
Good days in 2025
38
Median daily AQI, 2025
0
Days above 100 in 2025
363
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Albemarle, Virginia on 363 days. 294 of those days (81%) were in the Good range, and the median daily AQI was 38. That median is about the same as the typical monitored county in Virginia (median 37 across 25 counties), and about the same as the typical monitored U.S. county (40). The main pollutant was fine particles (PM2.5) on 216 days. Across the years with fuller monitoring, the share of Good days rose: an average of 66% in 2008–2010 versus 77% 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%2008: Good 154 of 234 days2008: Moderate 75 of 234 days2008: Unhealthy for Sensitive Groups 5 of 234 days20082009: Good 193 of 264 days2009: Moderate 71 of 264 days2010: Good 151 of 261 days2010: Moderate 106 of 261 days2010: Unhealthy for Sensitive Groups 4 of 261 days20102011: Good 213 of 364 days2011: Moderate 150 of 364 days2011: Unhealthy for Sensitive Groups 1 of 364 days2012: Good 242 of 366 days2012: Moderate 122 of 366 days2012: Unhealthy for Sensitive Groups 2 of 366 days20122013: Good 266 of 364 days2013: Moderate 98 of 364 days2014: Good 254 of 364 days2014: Moderate 110 of 364 days20142015: Good 271 of 365 days2015: Moderate 94 of 365 days2016: Good 283 of 366 days2016: Moderate 82 of 366 days2016: Unhealthy for Sensitive Groups 1 of 366 days20162017: Good 277 of 347 days2017: Moderate 70 of 347 days2018: Good 252 of 310 days2018: Moderate 58 of 310 days20182019: Good 251 of 282 days2019: Moderate 31 of 282 days2020: Good 287 of 363 days2020: Moderate 76 of 363 days20202021: Good 261 of 360 days2021: Moderate 99 of 360 days2022: Good 249 of 361 days2022: Moderate 112 of 361 days20222023: Good 254 of 364 days2023: Moderate 104 of 364 days2023: Unhealthy for Sensitive Groups 3 of 364 days2023: Unhealthy 3 of 364 days2024: Good 281 of 356 days2024: Moderate 75 of 356 days20242025: Good 294 of 363 days2025: Moderate 69 of 363 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 year0501002008: 90th percentile AQI 702009: 90th percentile AQI 592010: 90th percentile AQI 742011: 90th percentile AQI 642012: 90th percentile AQI 612013: 90th percentile AQI 582014: 90th percentile AQI 572015: 90th percentile AQI 572016: 90th percentile AQI 572017: 90th percentile AQI 542018: 90th percentile AQI 562019: 90th percentile AQI 512020: 90th percentile AQI 532021: 90th percentile AQI 602022: 90th percentile AQI 562023: 90th percentile AQI 642024: 90th percentile AQI 552025: 90th percentile AQI 562008: Median AQI 462009: Median AQI 412010: Median AQI 482011: Median AQI 462012: Median AQI 442013: Median AQI 402014: Median AQI 422015: Median AQI 412016: Median AQI 412017: Median AQI 402018: Median AQI 402019: Median AQI 412020: Median AQI 412021: Median AQI 412022: Median AQI 442023: Median AQI 442024: Median AQI 402025: Median AQI 382008201020122014201620182020202220242025
  • 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)21660%
Ozone14740%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2025363294690000385677PM2.5
2024356281750000405585PM2.5
202336425410433004464168PM2.5
20223612491120000445667PM2.5
2021360261990000416097PM2.5
2020363287760000415370PM2.5
2019282251310000415167Ozone
2018310252580000405693Ozone
2017347277700000405480Ozone
20163662838210004157122PM2.5
2015365271940000415777PM2.5
20143642541100000425777PM2.5
2013364266980000405876PM2.5
201236624212220004461119PM2.5
201136421315010004664105PM2.5
201026115110640004874129Ozone
20092641937100004159100Ozone
20082341547550004670140Ozone

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 Virginia with a similar median AQI in 2025

All monitored counties in Virginia

Source: U.S. EPA AirData, “Annual AQI by County” files for 2008–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem