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Air quality · Sweden

Stockholm Air Quality Index (AQI) today

Modelled estimate for 13:00 local time (UTC+1), refreshed 3 Nov, 07:52 UTC+0.

21 Good

Live estimate · modelled

US EPA AQI13:00 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 14.

Over the next 24 hours the model expects the AQI to range from 17 around 02:00 to 23 around 16:00 (3 Nov).

830th most polluted of 849 cities worldwide right now, 2nd of 2 in Sweden.

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

14:00 · 26 15:00 · 27 16:00 · 27 17:00 · 26 18:00 · 26 19:00 · 25 20:00 · 24 21:00 · 23 22:00 · 21 23:00 · 20 00:00 · 19 01:00 · 19 02:00 · 19 03:00 · 18 04:00 · 18 05:00 · 18 06:00 · 18 07:00 · 18 08:00 · 18 09:00 · 18 10:00 · 19 11:00 · 19 12:00 · 20 13:00 · 21 14:00 · 22 15:00 · 22 16:00 · 23 17:00 · 22 18:00 · 22 19:00 · 22 20:00 · 23 21:00 · 23 22:00 · 23 23:00 · 22 00:00 · 21 01:00 · 19 02:00 · 17 03:00 · 17 04:00 · 18 05:00 · 18 06:00 · 18 07:00 · 18 08:00 · 20 09:00 · 21 10:00 · 19 11:00 · 19 12:00 · 19 13:00 · 19 14:00 · 20 15:00 · 21 16:00 · 23 17:00 · 26 18:00 · 27 19:00 · 27 20:00 · 27 21:00 · 26 22:00 · 25 23:00 · 23 00:00 · 21 01:00 · 21 02:00 · 22 03:00 · 23 04:00 · 24 05:00 · 24 06:00 · 24 07:00 · 24 08:00 · 24 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 14:0026
Mon 15:0027
Mon 16:0027
Mon 17:0026
Mon 18:0026
Mon 19:0025
Mon 20:0024
Mon 21:0023
Mon 22:0021
Mon 23:0020
Tue 00:0019
Tue 01:0019
Tue 02:0019
Tue 03:0018
Tue 04:0018
Tue 05:0018
Tue 06:0018
Tue 07:0018
Tue 08:0018
Tue 09:0018
Tue 10:0019
Tue 11:0019
Tue 12:0020
Tue 13:00 · Now21
Tue 14:00 · Forecast22
Tue 15:00 · Forecast22
Tue 16:00 · Forecast23
Tue 17:00 · Forecast22
Tue 18:00 · Forecast22
Tue 19:00 · Forecast22
Tue 20:00 · Forecast23
Tue 21:00 · Forecast23
Tue 22:00 · Forecast23
Tue 23:00 · Forecast22
Wed 00:00 · Forecast21
Wed 01:00 · Forecast19
Wed 02:00 · Forecast17
Wed 03:00 · Forecast17
Wed 04:00 · Forecast18
Wed 05:00 · Forecast18
Wed 06:00 · Forecast18
Wed 07:00 · Forecast18
Wed 08:00 · Forecast20
Wed 09:00 · Forecast21
Wed 10:00 · Forecast19
Wed 11:00 · Forecast19
Wed 12:00 · Forecast19
Wed 13:00 · Forecast19
Wed 14:00 · Forecast20
Wed 15:00 · Forecast21
Wed 16:00 · Forecast23
Wed 17:00 · Forecast26
Wed 18:00 · Forecast27
Wed 19:00 · Forecast27
Wed 20:00 · Forecast27
Wed 21:00 · Forecast26
Wed 22:00 · Forecast25
Wed 23:00 · Forecast23
Thu 00:00 · Forecast21
Thu 01:00 · Forecast21
Thu 02:00 · Forecast22
Thu 03:00 · Forecast23
Thu 04:00 · Forecast24
Thu 05:00 · Forecast24
Thu 06:00 · Forecast24
Thu 07:00 · Forecast24
Thu 08:00 · Forecast24

Pollutants this hour

  • PM2.5 2.1 µg/m³ 24-hour mean 2.6 µg/m³ · within WHO’s 24-hour guideline (15) 12
  • PM10 4 µg/m³ 4
  • O₃ 56 µg/m³ 21
  • NO₂ 6 µg/m³ 3
  • SO₂ 0 µg/m³ 0
  • CO 0.17 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
Tallinn Estonia 31
Helsinki Finland 27
Gothenburg Västra Götaland 23
Oslo Norway 49
Riga Latvia 23
Copenhagen Denmark 20
Vilnius Lithuania 28

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 Stockholm’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 Stockholm right now?
21 on the US EPA scale (Good) at 13:00 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 Stockholm 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 Stockholm get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 17 around 02:00 to 23 around 16:00 (3 Nov). Forecasts beyond a day are less certain.

How does Stockholm compare with other cities?
Right now it is the 830th most polluted of 849 cities we track worldwide, and 2nd of 2 in Sweden, all on the same US EPA scale.

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