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Air quality · Capital Region, Denmark

Copenhagen Air Quality Index (AQI) today

Modelled estimate for 14:00 local time (UTC+1), refreshed 3 Nov, 07:52 UTC+0.

20 Good

Live estimate · modelled

US EPA AQI14:00 UTC+1, 3 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 32.

Over the next 24 hours the model expects the AQI to range from 17 around 04:00 to 33 around 20:00 (3 Nov).

832nd most polluted of 849 cities worldwide right now.

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

15:00 · 52 16:00 · 52 17:00 · 53 18:00 · 54 19:00 · 54 20:00 · 54 21:00 · 53 22:00 · 51 23:00 · 43 00:00 · 38 01:00 · 36 02:00 · 31 03:00 · 19 04:00 · 14 05:00 · 16 06:00 · 17 07:00 · 18 08:00 · 19 09:00 · 19 10:00 · 19 11:00 · 19 12:00 · 19 13:00 · 20 14:00 · 20 15:00 · 20 16:00 · 22 17:00 · 25 18:00 · 29 19:00 · 32 20:00 · 33 21:00 · 32 22:00 · 30 23:00 · 27 00:00 · 23 01:00 · 21 02:00 · 19 03:00 · 18 04:00 · 17 05:00 · 17 06:00 · 17 07:00 · 18 08:00 · 24 09:00 · 29 10:00 · 28 11:00 · 28 12:00 · 26 13:00 · 27 14:00 · 31 15:00 · 35 16:00 · 46 17:00 · 55 18:00 · 58 19:00 · 62 20:00 · 65 21:00 · 67 22:00 · 68 23:00 · 67 00:00 · 65 01:00 · 61 02:00 · 58 03:00 · 56 04:00 · 55 05:00 · 55 06:00 · 55 07:00 · 55 08:00 · 55 Now

US EPA AQI per hour, UTC+1. 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
Mon 15:0052
Mon 16:0052
Mon 17:0053
Mon 18:0054
Mon 19:0054
Mon 20:0054
Mon 21:0053
Mon 22:0051
Mon 23:0043
Tue 00:0038
Tue 01:0036
Tue 02:0031
Tue 03:0019
Tue 04:0014
Tue 05:0016
Tue 06:0017
Tue 07:0018
Tue 08:0019
Tue 09:0019
Tue 10:0019
Tue 11:0019
Tue 12:0019
Tue 13:0020
Tue 14:00 · Now20
Tue 15:00 · Forecast20
Tue 16:00 · Forecast22
Tue 17:00 · Forecast25
Tue 18:00 · Forecast29
Tue 19:00 · Forecast32
Tue 20:00 · Forecast33
Tue 21:00 · Forecast32
Tue 22:00 · Forecast30
Tue 23:00 · Forecast27
Wed 00:00 · Forecast23
Wed 01:00 · Forecast21
Wed 02:00 · Forecast19
Wed 03:00 · Forecast18
Wed 04:00 · Forecast17
Wed 05:00 · Forecast17
Wed 06:00 · Forecast17
Wed 07:00 · Forecast18
Wed 08:00 · Forecast24
Wed 09:00 · Forecast29
Wed 10:00 · Forecast28
Wed 11:00 · Forecast28
Wed 12:00 · Forecast26
Wed 13:00 · Forecast27
Wed 14:00 · Forecast31
Wed 15:00 · Forecast35
Wed 16:00 · Forecast46
Wed 17:00 · Forecast55
Wed 18:00 · Forecast58
Wed 19:00 · Forecast62
Wed 20:00 · Forecast65
Wed 21:00 · Forecast67
Wed 22:00 · Forecast68
Wed 23:00 · Forecast67
Thu 00:00 · Forecast65
Thu 01:00 · Forecast61
Thu 02:00 · Forecast58
Thu 03:00 · Forecast56
Thu 04:00 · Forecast55
Thu 05:00 · Forecast55
Thu 06:00 · Forecast55
Thu 07:00 · Forecast55
Thu 08:00 · Forecast55

Pollutants this hour

  • PM2.5 3.4 µg/m³ 24-hour mean 5.7 µg/m³ · within WHO’s 24-hour guideline (15) 18
  • PM10 6 µg/m³ 5
  • O₃ 51 µg/m³ 20
  • NO₂ 13 µg/m³ 6
  • SO₂ 1 µg/m³ 0
  • CO 0.20 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
Gothenburg Sweden 22
Hamburg Germany 48
Berlin Germany 52
Oslo Norway 52
Stockholm Sweden 22
Wrocław Poland 53
Amsterdam Netherlands 33

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 Copenhagen’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 Copenhagen right now?
20 on the US EPA scale (Good) at 14:00 UTC+1, 3 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 Copenhagen 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 Copenhagen get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 17 around 04:00 to 33 around 20:00 (3 Nov). Forecasts beyond a day are less certain.

How does Copenhagen compare with other cities?
Right now it is the 832nd most polluted of 849 cities we track worldwide, all on the same US EPA scale.

Why does another app show a different AQI for Copenhagen?
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.