Air Quality (AirNow) — Outage
ResolvedDegradation HighApr 21, 2026, 10:56 PM · 2 days ago · Duration: 15min · Regions: us-west
Incident Summary
Incident Summary
API Air Quality (AirNow) is currently DOWN in us-west.
Diagnostic Details
Error Type: http HTTP Status: 502 Error Message: API returned HTTP 502
Validation Results
Validation Reason: DOWN in multiple regions: asia, europe, us-east + us-west Consecutive DOWN Checks: 2 Time Between Checks: 235s
Cross-Region Impact
Also DOWN in: asia, europe, us-east Total Affected Regions: 4
Severity Assessment
Level: HIGH Multiple regions affected or critical error type detected.
Detected by Probecast Health Monitor - 2026-04-21T22:56:26.038Z
Timeline
Started
Apr 21, 2026, 10:56 PM
2 days ago
Resolved
Apr 21, 2026, 11:11 PM
2 days ago
Duration
15min
Evidence Logs(7 checks)
| Time | Region | Status | Latency | Code |
|---|---|---|---|---|
| Apr 21, 10:56 PM | us-west | down | 446ms | 502 |
| Apr 21, 10:56 PM | asia | down | 10003ms | — |
| Apr 21, 10:52 PM | us-west | down | 10001ms | — |
Track Air Quality (AirNow) reliability
This isn't Air Quality (AirNow)'s first incident. They had 59 incidents in the last 180 days, averaging 27 minutes of impact.
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