Air Quality · UV · Pollen

Air quality in Portland

Oregon, United States · November 12 2026

2/6

Moderate

Air Quality · US EPA

2/6

Moderate

UV Index · max

1.6

Low

Pollen · dominant

Low

Ragweed

Air quality breakdown Moderate

US EPA 2/6 · UK DEFRA 2/10 · µg/m³.

PM2.5 20 µg/m³

PM10 20 µg/m³

O3 13 µg/m³

NO2 31 µg/m³

SO2 1.3 µg/m³

CO 380 µg/m³

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

Today's maximum UV is 1.6.

036811+

No protection needed for most people.

Dominant allergen: Ragweed · 0 grains/m³.

Trees

no data

None

Grass

Grass · 0

Low

Weeds

Ragweed · 0

Low

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