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Air quality · Irkutsk Oblast, Russia

Irkutsk Air Quality Index (AQI) today

Modelled estimate for 21:00 local time (UTC+8), refreshed 3 Nov, 07:52 UTC+0.

31 Good

Live estimate · modelled

US EPA AQI21:00 UTC+8, 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 37.

Over the next 24 hours the model expects the AQI to range from 31 around 22:00 to 57 around 21:00 (4 Nov).

773rd most polluted of 849 cities worldwide right now, 19th of 25 in Russia.

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

22:00 · 42 23:00 · 45 00:00 · 47 01:00 · 48 02:00 · 47 03:00 · 46 04:00 · 43 05:00 · 41 06:00 · 39 07:00 · 40 08:00 · 38 09:00 · 38 10:00 · 38 11:00 · 37 12:00 · 34 13:00 · 33 14:00 · 32 15:00 · 32 16:00 · 32 17:00 · 32 18:00 · 33 19:00 · 33 20:00 · 32 21:00 · 31 22:00 · 31 23:00 · 31 00:00 · 32 01:00 · 32 02:00 · 34 03:00 · 37 04:00 · 37 05:00 · 37 06:00 · 35 07:00 · 34 08:00 · 34 09:00 · 34 10:00 · 34 11:00 · 34 12:00 · 35 13:00 · 35 14:00 · 35 15:00 · 35 16:00 · 34 17:00 · 36 18:00 · 40 19:00 · 49 20:00 · 54 21:00 · 57 22:00 · 59 23:00 · 63 00:00 · 65 01:00 · 67 02:00 · 65 03:00 · 64 04:00 · 63 05:00 · 63 06:00 · 63 07:00 · 63 08:00 · 63 09:00 · 63 10:00 · 63 11:00 · 63 12:00 · 61 13:00 · 60 14:00 · 59 15:00 · 58 Now

US EPA AQI per hour, UTC+8. 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 22:0042
Mon 23:0045
Tue 00:0047
Tue 01:0048
Tue 02:0047
Tue 03:0046
Tue 04:0043
Tue 05:0041
Tue 06:0039
Tue 07:0040
Tue 08:0038
Tue 09:0038
Tue 10:0038
Tue 11:0037
Tue 12:0034
Tue 13:0033
Tue 14:0032
Tue 15:0032
Tue 16:0032
Tue 17:0032
Tue 18:0033
Tue 19:0033
Tue 20:0032
Tue 21:00 · Now31
Tue 22:00 · Forecast31
Tue 23:00 · Forecast31
Wed 00:00 · Forecast32
Wed 01:00 · Forecast32
Wed 02:00 · Forecast34
Wed 03:00 · Forecast37
Wed 04:00 · Forecast37
Wed 05:00 · Forecast37
Wed 06:00 · Forecast35
Wed 07:00 · Forecast34
Wed 08:00 · Forecast34
Wed 09:00 · Forecast34
Wed 10:00 · Forecast34
Wed 11:00 · Forecast34
Wed 12:00 · Forecast35
Wed 13:00 · Forecast35
Wed 14:00 · Forecast35
Wed 15:00 · Forecast35
Wed 16:00 · Forecast34
Wed 17:00 · Forecast36
Wed 18:00 · Forecast40
Wed 19:00 · Forecast49
Wed 20:00 · Forecast54
Wed 21:00 · Forecast57
Wed 22:00 · Forecast59
Wed 23:00 · Forecast63
Thu 00:00 · Forecast65
Thu 01:00 · Forecast67
Thu 02:00 · Forecast65
Thu 03:00 · Forecast64
Thu 04:00 · Forecast63
Thu 05:00 · Forecast63
Thu 06:00 · Forecast63
Thu 07:00 · Forecast63
Thu 08:00 · Forecast63
Thu 09:00 · Forecast63
Thu 10:00 · Forecast63
Thu 11:00 · Forecast63
Thu 12:00 · Forecast61
Thu 13:00 · Forecast60
Thu 14:00 · Forecast59
Thu 15:00 · Forecast58

Pollutants this hour

  • PM2.5 4.5 µg/m³ 24-hour mean 6.7 µg/m³ · within WHO’s 24-hour guideline (15) 29
  • PM10 5 µg/m³ 5
  • O₃ 70 µg/m³ 31
  • NO₂ 3 µg/m³ 1
  • SO₂ 2 µg/m³ 0
  • CO 0.14 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
Ulan Bator Mongolia 95
Krasnoyarsk Krasnoyarsk Krai 58
Barnaul Altai Krai 20
Novosibirsk Novosibirsk Oblast 19
Wuzhong China 83
Beijing China 380
Tianjin China 177

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 Irkutsk’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 Irkutsk right now?
31 on the US EPA scale (Good) at 21:00 UTC+8, 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 Irkutsk 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 Irkutsk get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 31 around 22:00 to 57 around 21:00 (4 Nov). Forecasts beyond a day are less certain.

How does Irkutsk compare with other cities?
Right now it is the 773rd most polluted of 849 cities we track worldwide, and 19th of 25 in Russia, all on the same US EPA scale.

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