Air Quality · UV · Pollen

Air quality in Montréal

Quebec, Canada · 12 November 2026

2/6

Moderate

Air Quality · US EPA

2/6

Moderate

UV Index · max

0.7

Low

Pollen · dominant

Low

Ragweed

Air quality breakdown Moderate

US EPA 2/6 · UK DEFRA 1/10 · µg/m³.

PM2.5 9.4 µg/m³

PM10 9.5 µg/m³

O3 32 µg/m³

NO2 31 µg/m³

SO2 9.7 µg/m³

CO 259 µg/m³

Acceptable for most; unusually sensitive people should watch for symptoms.

Today's maximum UV is 0.7.

036811+

No protection needed for most people.

Dominant allergen: Ragweed · 0 grains/m³.

Trees

no data

None

Grass

no data

None

Weeds

Ragweed · 0

Low

Low to moderate pollen - most people are unaffected; the highly sensitive may notice mild symptoms.