Air Quality (AirNow)Outage

ResolvedDegradation - High

May 28, 2026, 11:21 PM · 1 day ago · Duration: 4h 24min · Regions: asia

Detected by Probecast

Incident Summary

Incident Summary

API Air Quality (AirNow) is currently DOWN in us-west.

Diagnostic Details

Error Type: timeout HTTP Status: N/A Error Message: Request timeout after 10000ms Retry Attempts: 3 (all failed)

Validation Results

Validation Reason: All 3 retry attempts failed Consecutive DOWN Checks: 2 Time Between Checks: 308s

Cross-Region Impact

Also DOWN in: asia Total Affected Regions: 2

Severity Assessment

Level: HIGH Multiple regions affected or critical error type detected.


Detected by Probecast Health Monitor - 2026-05-28T23:21:17.489Z

Timeline

Started

May 28, 2026, 11:21 PM

1 day ago

Resolved

May 29, 2026, 03:45 AM

1 day ago

Duration

4h 24min

Evidence Logs(7 checks)

TimeRegionStatusLatencyCode
May 28, 11:21 PMus-westdown10000ms
May 28, 11:16 PMasiadown10001ms
May 28, 11:16 PMeuropedown10001ms

Track Air Quality (AirNow) reliability

This isn't Air Quality (AirNow)'s first incident. They had 95 incidents in the last 180 days, averaging 32 minutes of impact.

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