High Air Quality Alert at Chilbolton Observatory
Areazine synthesizes this Defra air-quality advisory directly from DEFRA's official public data feed. See our methodology for full source attribution and refresh cadence.
DAQI level 7 (High) reported at Chilbolton Observatory due to ozone at 162 on 2026-05-27.
What this Defra air-quality advisory tells you, and what most readers miss
This notice was issued by DEFRA on June 5, 2026 and geographically references Chilbolton Observatory, UK. Its severity classification of "medium" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Air Quality - determines the informational context it sits in, and which agency or body is the authoritative source for updates.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.
Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are air-quality, defra, daqi, Chilbolton Observatory.
Current Air Quality
Chilbolton Observatory reported a DAQI of 7 (High) on 2026-05-27. The primary pollutant is ozone (o3) measured at 162 with o3_daqi of 7. No readings for NO2, SO2, PM2.5 or PM10.
What This Means
A DAQI reading of 7 falls in the High band.
Who Should Take Precautions
Sensitive individuals should be aware of conditions when levels reach the High band.
What You Should Do
Follow guidance appropriate for High air quality levels.
Source
Original source: DEFRA Official Notice ↗
Related Air Quality
All Air Quality →Frequently Asked Questions
Common questions about this Defra air-quality advisory.