SmogRank / United States / Arkansas / Springdale
Springdale, month by month
Springdale has a measured daily mean on 1,201 days since 7 May 2023. Its worst month was June 2023, at 66 US AQI (17.3 µg/m³), 326th of 1,603 cities on that month's world ranking. Its cleanest was September 2024, at 21 US AQI (3.8 µg/m³). 2025 averaged 52 US AQI (9.5 µg/m³), against 52 US AQI (9.5 µg/m³) in 2024.
Every month since 2023
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Springdale's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| June 2023 | 6617.3 µg/m³ | 326thof 1,603 | Eastern United States and Canada, May and June 2023 |
| July 2023 | 6315.5 µg/m³ | 131stof 1,432 | – |
| May 2023 | 6215.0 µg/m³ | 144thof 1,600 | Eastern United States and Canada, May and June 2023 |
| July 2024 | 6013.9 µg/m³ | 234thof 2,566 | Southern and eastern United States and Mexico, July and August 2024 |
| July 2026 | 5913.4 µg/m³ | 669thof 2,784 | – |
| August 2023 | 5913.3 µg/m³ | 260thof 1,980 | – |
Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.
Springdale's worst days
| Day | US AQI | Episode |
|---|---|---|
| 15 Mar 2025 | 14051.5 µg/m³ | United States and Mexico, March 2025 Eastern United States, March 2025 |
| 25 Feb 2026 | 12846.6 µg/m³ | – |
| 6 Jun 2023 | 11039.1 µg/m³ | Eastern United States and Canada, May and June 2023 |
| 9 Aug 2025 | 10336.4 µg/m³ | – |
| 1 Mar 2026 | 9934.7 µg/m³ | – |
| 1 Aug 2024 | 9834.4 µg/m³ | Southern and eastern United States and Mexico, July and August 2024 |
| 14 Mar 2025 | 9834.1 µg/m³ | United States and Mexico, March 2025 |
| 7 Jun 2023 | 8929.3 µg/m³ | Eastern United States and Canada, May and June 2023 |
| 5 Jun 2023 | 8828.8 µg/m³ | Eastern United States and Canada, May and June 2023 |
| 19 Jul 2023 | 8426.8 µg/m³ | – |
Daily means, the highest since 7 May 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.
Use this history
SmogRank, PM2.5 monthly and daily means, Springdale, United States, 7 May 2023 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/springdale/history (accessed 12 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Springdale now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 19:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).