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Air quality · Ibb Governorate, Yemen

Ibb Air Quality Index (AQI) today

Modelled estimate for 15:00 local time (UTC+3), refreshed 3 Nov, 07:52 UTC+0.

99 Moderate

Live estimate · modelled

US EPA AQI15:00 UTC+3, 3 Nov Main pollutant: PM10

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 94.

Over the next 24 hours the model expects the AQI to range from 76 around 11:00 to 123 around 18:00 (3 Nov).

196th most polluted of 849 cities worldwide right now, 2nd of 5 in Yemen.

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

16:00 · 106 17:00 · 121 18:00 · 129 19:00 · 121 20:00 · 117 21:00 · 117 22:00 · 116 23:00 · 113 00:00 · 108 01:00 · 102 02:00 · 99 03:00 · 93 04:00 · 88 05:00 · 85 06:00 · 84 07:00 · 83 08:00 · 82 09:00 · 79 10:00 · 78 11:00 · 78 12:00 · 78 13:00 · 79 14:00 · 87 15:00 · 99 16:00 · 110 17:00 · 119 18:00 · 123 19:00 · 121 20:00 · 122 21:00 · 119 22:00 · 114 23:00 · 111 00:00 · 109 01:00 · 107 02:00 · 105 03:00 · 102 04:00 · 99 05:00 · 97 06:00 · 97 07:00 · 98 08:00 · 91 09:00 · 83 10:00 · 78 11:00 · 76 12:00 · 76 13:00 · 77 14:00 · 79 15:00 · 83 16:00 · 91 17:00 · 99 18:00 · 106 19:00 · 106 20:00 · 105 21:00 · 103 22:00 · 101 23:00 · 100 00:00 · 99 01:00 · 99 02:00 · 98 03:00 · 99 04:00 · 100 05:00 · 102 06:00 · 105 07:00 · 109 08:00 · 103 09:00 · 82 10:00 · 70 Now

US EPA AQI per hour, UTC+3. 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 16:00106
Mon 17:00121
Mon 18:00129
Mon 19:00121
Mon 20:00117
Mon 21:00117
Mon 22:00116
Mon 23:00113
Tue 00:00108
Tue 01:00102
Tue 02:0099
Tue 03:0093
Tue 04:0088
Tue 05:0085
Tue 06:0084
Tue 07:0083
Tue 08:0082
Tue 09:0079
Tue 10:0078
Tue 11:0078
Tue 12:0078
Tue 13:0079
Tue 14:0087
Tue 15:00 · Now99
Tue 16:00 · Forecast110
Tue 17:00 · Forecast119
Tue 18:00 · Forecast123
Tue 19:00 · Forecast121
Tue 20:00 · Forecast122
Tue 21:00 · Forecast119
Tue 22:00 · Forecast114
Tue 23:00 · Forecast111
Wed 00:00 · Forecast109
Wed 01:00 · Forecast107
Wed 02:00 · Forecast105
Wed 03:00 · Forecast102
Wed 04:00 · Forecast99
Wed 05:00 · Forecast97
Wed 06:00 · Forecast97
Wed 07:00 · Forecast98
Wed 08:00 · Forecast91
Wed 09:00 · Forecast83
Wed 10:00 · Forecast78
Wed 11:00 · Forecast76
Wed 12:00 · Forecast76
Wed 13:00 · Forecast77
Wed 14:00 · Forecast79
Wed 15:00 · Forecast83
Wed 16:00 · Forecast91
Wed 17:00 · Forecast99
Wed 18:00 · Forecast106
Wed 19:00 · Forecast106
Wed 20:00 · Forecast105
Wed 21:00 · Forecast103
Wed 22:00 · Forecast101
Wed 23:00 · Forecast100
Thu 00:00 · Forecast99
Thu 01:00 · Forecast99
Thu 02:00 · Forecast98
Thu 03:00 · Forecast99
Thu 04:00 · Forecast100
Thu 05:00 · Forecast102
Thu 06:00 · Forecast105
Thu 07:00 · Forecast109
Thu 08:00 · Forecast103
Thu 09:00 · Forecast82
Thu 10:00 · Forecast70

Pollutants this hour

  • PM2.5 33.3 µg/m³ 24-hour mean 32.4 µg/m³ · 2.2× WHO’s 24-hour guideline (15) 87
  • PM10 176 µg/m³ 99
  • O₃ 99 µg/m³ 44
  • NO₂ 0 µg/m³ 0
  • SO₂ 2 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
Taiz Ta‘izz 107
Sanaa Amanat Alasimah 55
Aden Aden 68
Al Ḩudaydah Al Hudaydah 66
Djibouti Djibouti 71
Asmara Eritrea 55
Addis Ababa Ethiopia 47

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 Ibb’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 Ibb right now?
99 on the US EPA scale (Moderate) at 15:00 UTC+3, 3 Nov. PM10 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 Ibb 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 Ibb get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 76 around 11:00 to 123 around 18:00 (3 Nov). Forecasts beyond a day are less certain.

How does Ibb compare with other cities?
Right now it is the 196th most polluted of 849 cities we track worldwide, and 2nd of 5 in Yemen, all on the same US EPA scale.

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