EnviroNearby

Faulkner County, Arkansas air quality history

Daily Air Quality Index summaries from EPA monitors in Faulkner, Arkansas, 2000–2012.

34%
Good days in 2010
54
Median daily AQI, 2010
0
Days above 100 in 2010
120
Days with an AQI in 2010 (of 365)

In 2010, EPA reported a daily Air Quality Index (AQI) for Faulkner, Arkansas on 120 days. 41 of those days (34%) were in the Good range, and the median daily AQI was 54. That median is about the same as the typical monitored county in Arkansas (median 54 across 13 counties), and higher than the typical monitored U.S. county (44). The main pollutant was fine particles (PM2.5) on 120 days.

EPA did not report an AQI for every day of 2010 here (120 of 365 days). Figures describe monitored days only; seasonal monitoring (for example, ozone measured only in warmer months) can make a county look cleaner or dirtier than a full-year record would.

The most recent year with data for this county is 2012; EPA's files for 2013–2025 contain no row for it, which usually means its monitors stopped reporting.

Years with fewer than 120 monitored days (2005, 2006, 2007, 2008, 2011, 2012…) are shown in the table but left out of comparisons and trend statements.

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%2000: Good 8 of 40 days2000: Moderate 32 of 40 days20002001: Good 31 of 90 days2001: Moderate 59 of 90 days20012002: Good 39 of 110 days2002: Moderate 71 of 110 days20022003: Good 30 of 103 days2003: Moderate 72 of 103 days2003: Unhealthy for Sensitive Groups 1 of 103 days20032004: Good 43 of 120 days2004: Moderate 77 of 120 days20042005: Good 32 of 114 days2005: Moderate 79 of 114 days2005: Unhealthy for Sensitive Groups 3 of 114 days20052006: Good 41 of 117 days2006: Moderate 76 of 117 days20062007: Good 41 of 111 days2007: Moderate 70 of 111 days20072008: Good 45 of 111 days2008: Moderate 66 of 111 days20082009: Good 59 of 120 days2009: Moderate 61 of 120 days20092010: Good 41 of 120 days2010: Moderate 79 of 120 days20102011: Good 35 of 116 days2011: Moderate 81 of 116 days20112012: Good 24 of 60 days2012: Moderate 36 of 60 days2012
  • 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 year0501002000: 90th percentile AQI 792001: 90th percentile AQI 752002: 90th percentile AQI 742003: 90th percentile AQI 712004: 90th percentile AQI 702005: 90th percentile AQI 862006: 90th percentile AQI 702007: 90th percentile AQI 722008: 90th percentile AQI 712009: 90th percentile AQI 642010: 90th percentile AQI 652011: 90th percentile AQI 682012: 90th percentile AQI 612000: Median AQI 612001: Median AQI 572002: Median AQI 542003: Median AQI 582004: Median AQI 552005: Median AQI 572006: Median AQI 552007: Median AQI 542008: Median AQI 542009: Median AQI 522010: Median AQI 542011: Median AQI 532012: Median AQI 522000200120022003200420052006200720082009201020112012
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 2010

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)120100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
20126024360000526174PM2.5
201111635810000536885PM2.5
201012041790000546580PM2.5
200912059610000526485PM2.5
200811145660000547183PM2.5
200711141700000547291PM2.5
200611741760000557090PM2.5
2005114327930005786133PM2.5
200412043770000557086PM2.5
2003103307210005871108PM2.5
200211039710000547492PM2.5
20019031590000577596PM2.5
2000408320000617986PM2.5

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 Arkansas with a similar median AQI in 2010

All monitored counties in Arkansas

Source: U.S. EPA AirData, “Annual AQI by County” files for 2000–2012 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem