Air quality in Victorville right now

101Unhealthy for Sensitive GroupsUS AQI · updated 8:45 PM PT

VICTORVILLE — The air over Victorville reads 101 on the federal index this evening — unhealthy for sensitive groups.

The pollutants, against the WHO guideline

Pollutant	Now	WHO 24h	× guideline
PM2.5 µg/m³	9.1	15	0.6×
PM10 µg/m³	9.7	45	0.2×
Ozone µg/m³	131	100	1.3×
NO₂ µg/m³	3.6	25	0.1×
SO₂ µg/m³	4	40	0.1×
CO mg/m³	0.1	4	0.0×

Source: Open-Meteo (Copernicus CAMS) · WHO 2021 global air quality guidelines · No figure on this page is written by hand.

What this air means

The particles at this level begin to matter for sensitive lungs: children, older adults, and anyone with respiratory or cardiac disease should shorten or lighten outdoor exertion. The mechanism is dose — less time and lower breathing rates mean a smaller entry in the body’s ledger.

The mechanism, briefly

Particles under 2.5 microns — a fortieth the width of a hair — ride air all the way to the alveoli, the one-cell-thick membrane where the lung hands oxygen to the blood. The membrane cannot tell oxygen’s friends from its enemies: within an hour of significant exposure, ultrafine particulate is circulating. That is why the numbers on this page are worth checking — dose is the only variable you control.

From the Air desk

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Nearby

San Bernardino · Riverside · Lancaster · Anaheim · Pasadena · Santa Ana

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