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Air quality · Australian Capital Territory, Australia

Canberra Air Quality Index (AQI) today

Modelled estimate for 00:00 local time (UTC+11), refreshed 3 Nov, 07:52 UTC+0.

26 Good

Live estimate · modelled

US EPA AQI00:00 UTC+11, 4 Nov Main pollutant: O₃

Air quality is satisfactory, and air pollution poses little or no risk.

This page uses EPA’s NowCast, which follows the last few hours, as the US government’s AirNow does. On a 24-hour average of particles, as many apps show, it is 18.

Over the next 24 hours the model expects the AQI to range from 17 around 07:00 to 32 around 18:00 (4 Nov).

809th most polluted of 849 cities worldwide right now, 7th of 7 in Australia.

What to do today

  • Long walk or run outside OK
  • Kids playing outside OK
  • Airing the house Open
  • Mask outdoors Not needed

Based on the US EPA’s health statement: “Air quality is satisfactory, and air pollution poses little or no risk.” General guidance, not medical advice.

Last 24 hours and next 48

Past hours Forecast

01:00 · 27 02:00 · 27 03:00 · 24 04:00 · 22 05:00 · 21 06:00 · 22 07:00 · 23 08:00 · 23 09:00 · 22 10:00 · 22 11:00 · 25 12:00 · 28 13:00 · 30 14:00 · 31 15:00 · 32 16:00 · 34 17:00 · 35 18:00 · 34 19:00 · 33 20:00 · 32 21:00 · 31 22:00 · 30 23:00 · 28 00:00 · 26 01:00 · 24 02:00 · 22 03:00 · 21 04:00 · 20 05:00 · 19 06:00 · 18 07:00 · 17 08:00 · 20 09:00 · 21 10:00 · 21 11:00 · 19 12:00 · 20 13:00 · 23 14:00 · 25 15:00 · 28 16:00 · 30 17:00 · 31 18:00 · 32 19:00 · 31 20:00 · 31 21:00 · 30 22:00 · 29 23:00 · 28 00:00 · 27 01:00 · 25 02:00 · 24 03:00 · 23 04:00 · 22 05:00 · 21 06:00 · 20 07:00 · 19 08:00 · 19 09:00 · 19 10:00 · 19 11:00 · 19 12:00 · 20 13:00 · 22 14:00 · 23 15:00 · 25 16:00 · 27 17:00 · 28 18:00 · 28 Now

US EPA AQI per hour, UTC+11. Particles use EPA’s NowCast (a 12-hour weighted average), ozone and CO an 8-hour average. Lighter bars are the CAMS forecast.

Show as a table
TimeAQI
Tue 01:0027
Tue 02:0027
Tue 03:0024
Tue 04:0022
Tue 05:0021
Tue 06:0022
Tue 07:0023
Tue 08:0023
Tue 09:0022
Tue 10:0022
Tue 11:0025
Tue 12:0028
Tue 13:0030
Tue 14:0031
Tue 15:0032
Tue 16:0034
Tue 17:0035
Tue 18:0034
Tue 19:0033
Tue 20:0032
Tue 21:0031
Tue 22:0030
Tue 23:0028
Wed 00:00 · Now26
Wed 01:00 · Forecast24
Wed 02:00 · Forecast22
Wed 03:00 · Forecast21
Wed 04:00 · Forecast20
Wed 05:00 · Forecast19
Wed 06:00 · Forecast18
Wed 07:00 · Forecast17
Wed 08:00 · Forecast20
Wed 09:00 · Forecast21
Wed 10:00 · Forecast21
Wed 11:00 · Forecast19
Wed 12:00 · Forecast20
Wed 13:00 · Forecast23
Wed 14:00 · Forecast25
Wed 15:00 · Forecast28
Wed 16:00 · Forecast30
Wed 17:00 · Forecast31
Wed 18:00 · Forecast32
Wed 19:00 · Forecast31
Wed 20:00 · Forecast31
Wed 21:00 · Forecast30
Wed 22:00 · Forecast29
Wed 23:00 · Forecast28
Thu 00:00 · Forecast27
Thu 01:00 · Forecast25
Thu 02:00 · Forecast24
Thu 03:00 · Forecast23
Thu 04:00 · Forecast22
Thu 05:00 · Forecast21
Thu 06:00 · Forecast20
Thu 07:00 · Forecast19
Thu 08:00 · Forecast19
Thu 09:00 · Forecast19
Thu 10:00 · Forecast19
Thu 11:00 · Forecast19
Thu 12:00 · Forecast20
Thu 13:00 · Forecast22
Thu 14:00 · Forecast23
Thu 15:00 · Forecast25
Thu 16:00 · Forecast27
Thu 17:00 · Forecast28
Thu 18:00 · Forecast28

Pollutants this hour

  • PM2.5 2.0 µg/m³ 24-hour mean 3.4 µg/m³ · within WHO’s 24-hour guideline (15) 11
  • PM10 3 µg/m³ 2
  • O₃ 45 µg/m³ 26
  • NO₂ 3 µg/m³ 1
  • SO₂ 1 µg/m³ 0
  • CO 0.12 mg/m³ 1

Modelled concentrations at the city’s location (CAMS). The sub-index uses the same averaging as the headline, so the highest one is the AQI.

Nearby cities

City AQI
Sydney New South Wales 56
Melbourne Victoria 61
Gold Coast Queensland 31
Brisbane Queensland 29
Adelaide South Australia 34
Auckland New Zealand 38
Wellington New Zealand 35

Where this number comes from

The Copernicus Atmosphere Monitoring Service (CAMS) forecasts air pollution worldwide on a grid (about 11 km over Europe, about 45 km elsewhere). We take the grid value at Canberra’s coordinates and score it with the US EPA’s method. It is a model, not a measurement: a nearby monitoring station can read quite differently, especially next to busy roads or during fires and dust storms.

Full methodology · Data: CAMS via Open-Meteo (CC BY 4.0); city list: GeoNames (CC BY 4.0).

  • Good 0–50
  • Moderate 51–100
  • Unhealthy for sensitive groups 101–150
  • Unhealthy 151–200
  • Very unhealthy 201–300
  • Hazardous 301–500

Questions

What is the AQI in Canberra right now?
26 on the US EPA scale (Good) at 00:00 UTC+11, 4 Nov. O₃ is the pollutant with the highest sub-index. This is a modelled estimate from the Copernicus Atmosphere Monitoring Service (CAMS), not a reading from a monitoring station.

Is it safe to exercise outside in Canberra today?
For most people, yes. The EPA’s statement for “Good”: Air quality is satisfactory, and air pollution poses little or no risk. General guidance, not medical advice.

Will the air in Canberra get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 17 around 07:00 to 32 around 18:00 (4 Nov). Forecasts beyond a day are less certain.

How does Canberra compare with other cities?
Right now it is the 809th most polluted of 849 cities we track worldwide, and 7th of 7 in Australia, all on the same US EPA scale.

Why does another app show a different AQI for Canberra?
Apps differ in source (government stations, low-cost sensors or a model like this one), in scale (US EPA, European, or a national index) and in averaging (hourly or NowCast, 8-hour, 24-hour). This page uses the US EPA AQI with EPA’s NowCast for particles, computed from the CAMS forecast for the city’s location.