Air Quality · UV · Pollen

Air quality in Toronto

Ontario, Canada · 12 November 2026

1/6

Good

Air Quality · US EPA

1/6

Good

UV Index · max

0.8

Low

Pollen · dominant

Low

Ragweed

Air quality breakdown Good

US EPA 1/6 · UK DEFRA 1/10 · µg/m³.

PM2.5 3.3 µg/m³

PM10 3.5 µg/m³

O3 49 µg/m³

NO2 15 µg/m³

SO2 4.7 µg/m³

CO 203 µg/m³

Air quality is satisfactory - enjoy your usual outdoor activities.

Today's maximum UV is 0.8.

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.