Portland air quality and smoke forecast

Current government PM2.5 readings within 50 km of Portland, with separate NASA GEOS-CF, CAMS and SILAM total-PM2.5 forecasts sampled at the locality centre.

Updated 08 Oct, 2:17 PM AEDT · Location forecast · current monitors within 50 km of Portland · concentrations, not an Australian AQI

Current air quality and forecast

Now · observedGood5.4 µg/m³ median · 2 current monitors

Next 48 hoursGood to Fair5.6–13.8 µg/m³ · 3 of 3 models

Forecast peak13.8 µg/m³10 Oct, 10:00 AM AEDT · CAMS

Nearby fires

150 km radius

No agency fire incidents are currently reported within 150 km of this location.

Agency fire reports updated 08 Oct, 2:20 PM AEDT

Straight-line distance from the Portland centre to the reported incident location, or to the mapped fire boundary where an agency has published one. A fire without a published boundary may extend closer than its reported location suggests.

Last 24 hours and next 48 hours across Portland

Range across monitors

About this chart

The observed line is the hourly median across reporting monitors and the shaded range shows local variation. NASA GEOS-CF, CAMS and SILAM are separate total surface PM2.5 research forecasts sampled near the Portland locality centre. They are not smoke-only, official health forecasts or blended with observations.

Forecast

Next 6 hoursGood2.5–2.7 µg/m³ · 3 of 3 models

Next 12 hoursGood2.5–2.8 µg/m³ · 3 of 3 models

Next 24 hoursGood2.5–5.1 µg/m³ · 3 of 3 models

Next 48 hoursFair5.6–13.8 µg/m³ · 3 of 3 models

Model detail3 available · 48-hour peak table

Model	48-hour peak	Category	Peak around
NASA GEOS-CF	8.5 µg/m³	Good	10 Oct, 1:30 AM AEDT
CAMS	13.8 µg/m³	Fair	10 Oct, 10:00 AM AEDT
FMI SILAM	5.6 µg/m³	Good	09 Oct, 5:00 PM AEDT

Highest readings right now

current hourly PM2.5

All government monitors (2 total; 2 current)

Monitor	PM2.5 µg/m³	Air quality	Observed local
Heywood ^†	5.5	Good	08 Oct, 2:00 PM AEDT
Portland ^†	5.2	Good	08 Oct, 2:00 PM AEDT

^† The publishing agency identifies these as indicative sensors. They add local coverage but are not reference-grade monitors.