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Air quality · Abia State, Nigeria

Aba Air Quality Index (AQI) today

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

64 Moderate

Live estimate · modelled

US EPA AQI13:00 UTC+1, 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 85.

Over the next 24 hours the model expects the AQI to range from 60 around 16:00 to 160 around 00:00 (4 Nov).

442nd most polluted of 849 cities worldwide right now, 16th of 22 in Nigeria.

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

14:00 · 69 15:00 · 68 16:00 · 66 17:00 · 67 18:00 · 76 19:00 · 85 20:00 · 87 21:00 · 88 22:00 · 93 23:00 · 98 00:00 · 98 01:00 · 96 02:00 · 95 03:00 · 96 04:00 · 96 05:00 · 96 06:00 · 98 07:00 · 107 08:00 · 99 09:00 · 86 10:00 · 79 11:00 · 71 12:00 · 67 13:00 · 64 14:00 · 62 15:00 · 61 16:00 · 60 17:00 · 60 18:00 · 64 19:00 · 80 20:00 · 104 21:00 · 127 22:00 · 151 23:00 · 158 00:00 · 160 01:00 · 159 02:00 · 157 03:00 · 155 04:00 · 153 05:00 · 152 06:00 · 148 07:00 · 151 08:00 · 124 09:00 · 100 10:00 · 82 11:00 · 71 12:00 · 64 13:00 · 63 14:00 · 63 15:00 · 63 16:00 · 61 17:00 · 61 18:00 · 69 19:00 · 88 20:00 · 119 21:00 · 156 22:00 · 168 23:00 · 172 00:00 · 168 01:00 · 164 02:00 · 164 03:00 · 163 04:00 · 162 05:00 · 159 06:00 · 154 07:00 · 144 08:00 · 128 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 14:0069
Mon 15:0068
Mon 16:0066
Mon 17:0067
Mon 18:0076
Mon 19:0085
Mon 20:0087
Mon 21:0088
Mon 22:0093
Mon 23:0098
Tue 00:0098
Tue 01:0096
Tue 02:0095
Tue 03:0096
Tue 04:0096
Tue 05:0096
Tue 06:0098
Tue 07:00107
Tue 08:0099
Tue 09:0086
Tue 10:0079
Tue 11:0071
Tue 12:0067
Tue 13:00 · Now64
Tue 14:00 · Forecast62
Tue 15:00 · Forecast61
Tue 16:00 · Forecast60
Tue 17:00 · Forecast60
Tue 18:00 · Forecast64
Tue 19:00 · Forecast80
Tue 20:00 · Forecast104
Tue 21:00 · Forecast127
Tue 22:00 · Forecast151
Tue 23:00 · Forecast158
Wed 00:00 · Forecast160
Wed 01:00 · Forecast159
Wed 02:00 · Forecast157
Wed 03:00 · Forecast155
Wed 04:00 · Forecast153
Wed 05:00 · Forecast152
Wed 06:00 · Forecast148
Wed 07:00 · Forecast151
Wed 08:00 · Forecast124
Wed 09:00 · Forecast100
Wed 10:00 · Forecast82
Wed 11:00 · Forecast71
Wed 12:00 · Forecast64
Wed 13:00 · Forecast63
Wed 14:00 · Forecast63
Wed 15:00 · Forecast63
Wed 16:00 · Forecast61
Wed 17:00 · Forecast61
Wed 18:00 · Forecast69
Wed 19:00 · Forecast88
Wed 20:00 · Forecast119
Wed 21:00 · Forecast156
Wed 22:00 · Forecast168
Wed 23:00 · Forecast172
Thu 00:00 · Forecast168
Thu 01:00 · Forecast164
Thu 02:00 · Forecast164
Thu 03:00 · Forecast163
Thu 04:00 · Forecast162
Thu 05:00 · Forecast159
Thu 06:00 · Forecast154
Thu 07:00 · Forecast144
Thu 08:00 · Forecast128

Pollutants this hour

  • PM2.5 14.6 µg/m³ 24-hour mean 27.5 µg/m³ · 1.8× WHO’s 24-hour guideline (15) 64
  • PM10 19 µg/m³ 18
  • O₃ 94 µg/m³ 28
  • NO₂ 2 µg/m³ 1
  • SO₂ 1 µg/m³ 0
  • CO 0.29 mg/m³ 3

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
Port Harcourt Rivers State 56
Onitsha Anambra 75
Enugu Enugu State 86
Warri Delta 59
Benin City Edo State 64
Douala Cameroon 52
Akure Ondo State 63

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 Aba’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 Aba right now?
64 on the US EPA scale (Moderate) at 13:00 UTC+1, 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 Aba 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 Aba get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 60 around 16:00 to 160 around 00:00 (4 Nov). Forecasts beyond a day are less certain.

How does Aba compare with other cities?
Right now it is the 442nd most polluted of 849 cities we track worldwide, and 16th of 22 in Nigeria, all on the same US EPA scale.

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