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Air quality · Oman

Muscat Air Quality Index (AQI) today

Modelled estimate for 16:00 local time (UTC+4), refreshed 3 Nov, 07:52 UTC+0.

78 Moderate

Live estimate · modelled

US EPA AQI16:00 UTC+4, 3 Nov Main pollutant: PM2.5

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

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 68.

Over the next 24 hours the model expects the AQI to range from 68 around 06:00 to 90 around 16:00 (4 Nov).

315th most polluted of 849 cities worldwide right now.

What to do today

  • Long walk or run outside OK, lighter if very sensitive
  • Kids playing outside OK
  • Airing the house Open
  • Mask outdoors Not needed

Based on the US EPA’s health statement: “Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.” General guidance, not medical advice.

Last 24 hours and next 48

Past hours Forecast

17:00 · 90 18:00 · 97 19:00 · 97 20:00 · 93 21:00 · 87 22:00 · 80 23:00 · 67 00:00 · 66 01:00 · 65 02:00 · 65 03:00 · 65 04:00 · 64 05:00 · 64 06:00 · 64 07:00 · 64 08:00 · 64 09:00 · 63 10:00 · 62 11:00 · 62 12:00 · 65 13:00 · 72 14:00 · 76 15:00 · 77 16:00 · 78 17:00 · 78 18:00 · 77 19:00 · 75 20:00 · 77 21:00 · 77 22:00 · 74 23:00 · 73 00:00 · 72 01:00 · 72 02:00 · 71 03:00 · 71 04:00 · 70 05:00 · 69 06:00 · 68 07:00 · 68 08:00 · 69 09:00 · 69 10:00 · 71 11:00 · 75 12:00 · 81 13:00 · 87 14:00 · 88 15:00 · 89 16:00 · 90 17:00 · 89 18:00 · 87 19:00 · 85 20:00 · 84 21:00 · 84 22:00 · 83 23:00 · 82 00:00 · 82 01:00 · 82 02:00 · 82 03:00 · 82 04:00 · 82 05:00 · 83 06:00 · 84 07:00 · 86 08:00 · 90 09:00 · 93 10:00 · 96 11:00 · 100 Now

US EPA AQI per hour, UTC+4. 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 17:0090
Mon 18:0097
Mon 19:0097
Mon 20:0093
Mon 21:0087
Mon 22:0080
Mon 23:0067
Tue 00:0066
Tue 01:0065
Tue 02:0065
Tue 03:0065
Tue 04:0064
Tue 05:0064
Tue 06:0064
Tue 07:0064
Tue 08:0064
Tue 09:0063
Tue 10:0062
Tue 11:0062
Tue 12:0065
Tue 13:0072
Tue 14:0076
Tue 15:0077
Tue 16:00 · Now78
Tue 17:00 · Forecast78
Tue 18:00 · Forecast77
Tue 19:00 · Forecast75
Tue 20:00 · Forecast77
Tue 21:00 · Forecast77
Tue 22:00 · Forecast74
Tue 23:00 · Forecast73
Wed 00:00 · Forecast72
Wed 01:00 · Forecast72
Wed 02:00 · Forecast71
Wed 03:00 · Forecast71
Wed 04:00 · Forecast70
Wed 05:00 · Forecast69
Wed 06:00 · Forecast68
Wed 07:00 · Forecast68
Wed 08:00 · Forecast69
Wed 09:00 · Forecast69
Wed 10:00 · Forecast71
Wed 11:00 · Forecast75
Wed 12:00 · Forecast81
Wed 13:00 · Forecast87
Wed 14:00 · Forecast88
Wed 15:00 · Forecast89
Wed 16:00 · Forecast90
Wed 17:00 · Forecast89
Wed 18:00 · Forecast87
Wed 19:00 · Forecast85
Wed 20:00 · Forecast84
Wed 21:00 · Forecast84
Wed 22:00 · Forecast83
Wed 23:00 · Forecast82
Thu 00:00 · Forecast82
Thu 01:00 · Forecast82
Thu 02:00 · Forecast82
Thu 03:00 · Forecast82
Thu 04:00 · Forecast82
Thu 05:00 · Forecast83
Thu 06:00 · Forecast84
Thu 07:00 · Forecast86
Thu 08:00 · Forecast90
Thu 09:00 · Forecast93
Thu 10:00 · Forecast96
Thu 11:00 · Forecast100

Pollutants this hour

  • PM2.5 24.1 µg/m³ 24-hour mean 18.3 µg/m³ · 1.2× WHO’s 24-hour guideline (15) 78
  • PM10 34 µg/m³ 30
  • O₃ 133 µg/m³ 50
  • NO₂ 16 µg/m³ 8
  • SO₂ 14 µg/m³ 7
  • 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
Al Ain City United Arab Emirates 96
Dubai United Arab Emirates 117
Sharjah United Arab Emirates 137
Abu Dhabi United Arab Emirates 100
Doha Qatar 115
Al Muharraq Bahrain 123
Karachi Pakistan 97

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 Muscat’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 Muscat right now?
78 on the US EPA scale (Moderate) at 16:00 UTC+4, 3 Nov. PM2.5 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 Muscat today?
For most people, yes. The EPA’s statement for “Moderate”: Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. General guidance, not medical advice.

Will the air in Muscat get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 68 around 06:00 to 90 around 16:00 (4 Nov). Forecasts beyond a day are less certain.

How does Muscat compare with other cities?
Right now it is the 315th most polluted of 849 cities we track worldwide, all on the same US EPA scale.

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