SmogRank / Countries / United States / Arkansas

Most polluted cities in Arkansas, United States

4 measured cities, this year; 4 above the WHO annual guideline. Worst: Little Rock at 11.0 µg/m³, #506 in the world.

1 good  3 moderate

  1. 1Little Rock 11.02.2×
  2. 2West Memphis 10.52.1×
  3. 3Springdale 10.22.0×
  4. 4Fort Smith 7.31.5×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

Estimated: cities without a monitor

Arkansas cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Fayetteville≈ 8 µg/m³Good
Jonesboro≈ 6 µg/m³Good
North Little Rock≈ 8 µg/m³Good
Conway≈ 7 µg/m³Good
Rogers≈ 8 µg/m³Good
Pine Bluff≈ 9 µg/m³Good
Bentonville≈ 9 µg/m³Good
Hot Springs≈ 7 µg/m³Good
Benton≈ 8 µg/m³Good
Sherwood≈ 8 µg/m³Good
Texarkana≈ 10 µg/m³Moderate
Russellville≈ 7 µg/m³Good
Jacksonville≈ 8 µg/m³Good
Bella Vista≈ 9 µg/m³Good
Paragould≈ 6 µg/m³Good
Cabot≈ 8 µg/m³Good
Searcy≈ 7 µg/m³Good
Van Buren≈ 9 µg/m³Good
Bryant≈ 8 µg/m³Good
El Dorado≈ 9 µg/m³Moderate
Maumelle≈ 8 µg/m³Good
Siloam Springs≈ 9 µg/m³Moderate

Updated 2026-10-01 20:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.