Metro area air quality · 2025

Arkadelphia, AR

Median AQI 34 (Good). 96.7% of monitored days rated Good across this metro's EPA monitoring network.

Compiled by PlainAirData · August 23, 2026

34
Median AQI: 96.7%
Good-air days: 0
Unhealthy days: 97%
Cleaner than US metros

Arkadelphia, AR posted a 2025 median AQI of 34 (Good) with 96.7% Good days

According to the U.S. EPA Air Quality System, the Arkadelphia, AR CBSA recorded a median AQI of 34 across 363 monitored days in 2025, with 96.7% rated Good and 0 unhealthy or worse. This is an annual metro comparison, not a live advisory.

Data source EPA Air Quality System (AQS)

Cleaner than US metros: The Arkadelphia, AR CBSA's 96.7% Good-day share places it cleaner than 97% of US metros in 2025.
Closest median-AQI peer: Augusta-Waterville, ME (85.2% Good, median AQI 34) is the closest nationwide median-AQI peer to Arkadelphia, AR.
2020–2025 Good-day shift: Arkadelphia, AR's Good-day share moved -3.0 points from 2020 to 2025 (median AQI +5).
Median AQI: Median AQI: 34

Aggregated from EPA Air Quality System (2025), 363 monitored days. EPA AQS →

The verdict

Arkadelphia, AR sits in the upper Good-day tercile among EPA CBSA metros on this site (96.7% of 363 monitored days). On the EPA scale the metro runs good, among the cleanest 10% of US metros, with a median AQI of 34 and 96.7% of 363 monitored days in the Good band.

34
median AQI · Good: 96.7%
days rated Good: 97%
cleaner than US metros: 84
worst single reading

No day crossed into the Unhealthy tier across the metro's monitors in 2025.

Arkadelphia, AR metro's Good-day share rose from 93.3% to 96.7% between the 2024 and 2025 EPA annual releases, a change of +3.4 percentage points.

Arkadelphia, AR sits in the upper Good-day tercile among EPA CBSA metros on this site (96.7% of 363 monitored days). Signature read: 96.7% Good-day share (high tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 34 over 363 measured days in 2025 (Good / Excellent). The monitored-day split lands at 351 Good (97%), 12 Moderate (3%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 46; the highest single-day reading hit 84 (Moderate).

Across 2020–2025, Good-day share shifted -3.0 points and median AQI moved +5 (worsening). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Augusta-Waterville, ME (85.2% good, AQI 34); Beatrice, NE (75.8% good, AQI 34); Dyersburg, TN (76.9% good, AQI 34).

Best and worst city air quality →

Air Quality Summary

Median AQI

Good

Good Days

96.7%

351 of 363 days

Max AQI

Moderate

Health Grade

Excellent

90th pct: 46

AQI Day Breakdown (2025)

Distribution of 363 monitored days across EPA AQI categories.

Good

351

97%

Moderate

USG

Unhealthy

Very Unhealthy

Hazardous

Health Impact Assessment

Excellent

The Arkadelphia, AR metro area's air quality is rated Excellent based on 96.7% good air days. No unhealthy air days were recorded in 2025.

Air quality is generally acceptable. Unusually sensitive people should monitor real-time conditions at AirNow.gov during high-pollution events.

How does the Arkadelphia, AR metro compare?

How Arkadelphia, AR compares

Compare against

Good-day share better than typical

Arkadelphia, AR 96.7%

Augusta-Waterville, ME 85.2%

Typical US metro 70.6%

Median AQI better than typical

Arkadelphia, AR 34

Augusta-Waterville, ME 34

Typical US metro 41

Unhealthy days / yr better than typical

Arkadelphia, AR 0

Augusta-Waterville, ME 0

Typical US metro 1

5-Year Air Quality Trend

Air quality is worsening in the Arkadelphia, AR metro. Highest Good-day share: 2020 (99.7%, 341 of 342 monitored days).

Year	Good	Moderate	Median AQI	Max AQI
2020	341	1	29	67
2021	328	10	32	90
2022	350	13	35	90
2023	321	30	35	87
2024	336	24	35	93
2025	351	12	34	84

Metros with a similar median AQI

CBSA peers nationwide whose annual median AQI sits near Arkadelphia, AR (34).

Augusta-Waterville, ME

Median AQI 34 · 85.2% Good-day share

Beatrice, NE

Median AQI 34 · 75.8% Good-day share

Dyersburg, TN

Median AQI 34 · 76.9% Good-day share

Erie, PA

Median AQI 34 · 76.7% Good-day share

Grand Island, NE

Median AQI 34 · 82.5% Good-day share

Lakeland-Winter Haven, FL

Median AQI 34 · 95.5% Good-day share

Metros with similar unhealthy-day exposure

A second relationship type: metros whose unhealthy-or-worse day count is closest to Arkadelphia, AR's 0 (independent of median AQI).

Aberdeen, SD

0 unhealthy-or-worse days · median AQI 27

Aberdeen, WA

0 unhealthy-or-worse days · median AQI 22

Adrian, MI

0 unhealthy-or-worse days · median AQI 41

Akron, OH

0 unhealthy-or-worse days · median AQI 45

Albany, GA

0 unhealthy-or-worse days · median AQI 46

Albany, OR

0 unhealthy-or-worse days · median AQI 27

Frequently Asked Questions

How many unhealthy air days does Arkadelphia, AR have? ▼

In 2025, the Arkadelphia, AR metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 84.

What is the air quality in the Arkadelphia, AR metro area? ▼

The Arkadelphia, AR metro area has a median Air Quality Index (AQI) of 34, rated "Good." 96.7% of monitored days (351 out of 363) had good air quality in 2025.

Is air quality in Arkadelphia, AR getting better or worse? ▼

Air quality in the Arkadelphia, AR metro is worsening across floor-qualifying years (2020-2025); years with fewer than 100 monitored days are excluded from that direction. Highest qualifying Good-day share: 2020 at 99.7% (341 of 342 days). Lowest qualifying Good-day share: 2023 at 91.5% (321 of 351 days).

What does AQI 34 mean for health? ▼

An AQI of 34 is "Good", air quality is satisfactory and poses little or no health risk. This is the best category on the EPA's AQI scale.

How does Arkadelphia, AR compare to other metro areas? ▼

The Arkadelphia, AR metro has 96.7% good air days. Similar metros: Augusta-Waterville, ME (85.2% good), Beatrice, NE (75.8% good), Dyersburg, TN (76.9% good).

What is the 90th percentile AQI for Arkadelphia, AR? ▼

The 90th percentile AQI for the Arkadelphia, AR metro area is 46, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 84 (Moderate).

Data Sources

Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset for Arkadelphia, AR, 2025. See our methodology for how AQI, median, and coverage figures are computed.

Read our methodology , how this data is sourced, computed, and verified.

Source: U.S. EPA Air Quality System (AQS) Annual AQI by CBSA summary, Arkadelphia, AR · 2020–2025 Accessed 2026-07-06