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Air quality · Katsina State, Nigeria

Katsina Air Quality Index (AQI) today

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

81 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 165.

Over the next 24 hours the model expects the AQI to range from 64 around 16:00 to 175 around 22:00 (3 Nov).

296th most polluted of 849 cities worldwide right now, 9th 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 · 73 15:00 · 63 16:00 · 59 17:00 · 66 18:00 · 94 19:00 · 155 20:00 · 177 21:00 · 194 22:00 · 211 23:00 · 222 00:00 · 224 01:00 · 226 02:00 · 223 03:00 · 207 04:00 · 189 05:00 · 174 06:00 · 161 07:00 · 155 08:00 · 151 09:00 · 137 10:00 · 119 11:00 · 103 12:00 · 91 13:00 · 81 14:00 · 73 15:00 · 67 16:00 · 64 17:00 · 73 18:00 · 99 19:00 · 153 20:00 · 166 21:00 · 172 22:00 · 175 23:00 · 174 00:00 · 166 01:00 · 157 02:00 · 143 03:00 · 122 04:00 · 107 05:00 · 97 06:00 · 94 07:00 · 105 08:00 · 118 09:00 · 122 10:00 · 113 11:00 · 103 12:00 · 102 13:00 · 99 14:00 · 96 15:00 · 95 16:00 · 94 17:00 · 108 18:00 · 155 19:00 · 179 20:00 · 208 21:00 · 236 22:00 · 250 23:00 · 242 00:00 · 209 01:00 · 180 02:00 · 160 03:00 · 132 04:00 · 102 05:00 · 90 06:00 · 87 07:00 · 97 08:00 · 110 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 14:0073
Mon 15:0063
Mon 16:0059
Mon 17:0066
Mon 18:0094
Mon 19:00155
Mon 20:00177
Mon 21:00194
Mon 22:00211
Mon 23:00222
Tue 00:00224
Tue 01:00226
Tue 02:00223
Tue 03:00207
Tue 04:00189
Tue 05:00174
Tue 06:00161
Tue 07:00155
Tue 08:00151
Tue 09:00137
Tue 10:00119
Tue 11:00103
Tue 12:0091
Tue 13:00 · Now81
Tue 14:00 · Forecast73
Tue 15:00 · Forecast67
Tue 16:00 · Forecast64
Tue 17:00 · Forecast73
Tue 18:00 · Forecast99
Tue 19:00 · Forecast153
Tue 20:00 · Forecast166
Tue 21:00 · Forecast172
Tue 22:00 · Forecast175
Tue 23:00 · Forecast174
Wed 00:00 · Forecast166
Wed 01:00 · Forecast157
Wed 02:00 · Forecast143
Wed 03:00 · Forecast122
Wed 04:00 · Forecast107
Wed 05:00 · Forecast97
Wed 06:00 · Forecast94
Wed 07:00 · Forecast105
Wed 08:00 · Forecast118
Wed 09:00 · Forecast122
Wed 10:00 · Forecast113
Wed 11:00 · Forecast103
Wed 12:00 · Forecast102
Wed 13:00 · Forecast99
Wed 14:00 · Forecast96
Wed 15:00 · Forecast95
Wed 16:00 · Forecast94
Wed 17:00 · Forecast108
Wed 18:00 · Forecast155
Wed 19:00 · Forecast179
Wed 20:00 · Forecast208
Wed 21:00 · Forecast236
Wed 22:00 · Forecast250
Wed 23:00 · Forecast242
Thu 00:00 · Forecast209
Thu 01:00 · Forecast180
Thu 02:00 · Forecast160
Thu 03:00 · Forecast132
Thu 04:00 · Forecast102
Thu 05:00 · Forecast90
Thu 06:00 · Forecast87
Thu 07:00 · Forecast97
Thu 08:00 · Forecast110

Pollutants this hour

  • PM2.5 20.1 µg/m³ 24-hour mean 74.9 µg/m³ · 5.0× WHO’s 24-hour guideline (15) 81
  • PM10 36 µg/m³ 38
  • O₃ 90 µg/m³ 30
  • NO₂ 1 µg/m³ 0
  • SO₂ 1 µg/m³ 0
  • CO 0.16 mg/m³ 6

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
Kano Kano State 110
Zaria Kaduna State 423
Sokoto Sokoto 93
Kaduna Kaduna State 103
Jos Plateau State 144
Bauchi Bauchi 76
Abuja FCT 86

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 Katsina’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 Katsina right now?
81 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 Katsina 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 Katsina get better or worse tomorrow?
Over the next 24 hours the model expects the AQI to range from 64 around 16:00 to 175 around 22:00 (3 Nov). Forecasts beyond a day are less certain.

How does Katsina compare with other cities?
Right now it is the 296th most polluted of 849 cities we track worldwide, and 9th of 22 in Nigeria, all on the same US EPA scale.

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