Air quality
Air quality in Taiz today
Updated
Moderate (US AQI 99) Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. Model estimate for Mon, Oct 26, 4:00 am (01:00 UTC).
Live AQI, PM2.5, PM10 and ozone for Taiz, Ta‘izz, Yemen, with a 48-hour forecast and the best time to be outside.
- US AQI now
- 99 Moderate
- PM2.5
- 129 µg/m³ 8.6× WHO 24-h guideline
- PM10
- 542 µg/m³
- Ozone
- 25 µg/m³
- Dominant pollutant
- PM2.5 sub-index 99
- Best hour today
- 6:00 am AQI 125
- European AQI
- 173
Air quality in Taiz right now
Right now the modelled US Air Quality Index for Taiz, Ta‘izz, Yemen is 99, which falls in the "Moderate" band (up to 100). Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors.
The index is driven mainly by PM2.5, whose own sub-index is 99. Fine and coarse particles come from traffic, heating, industry, dust and smoke; they build up on calm nights and clear when wind or rain arrives.
PM2.5 is 129 µg/m³, 8.6 times the WHO 24-hour guideline of 15 µg/m³; PM10 is 542 µg/m³ against a guideline of 45; ozone is 25 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 4.1 µg/m³ (below the 24-hour guideline of 25).
Also this hour: desert dust at 871 µg/m³, high enough to haze the sky, carbon monoxide 136 µg/m³.
Taiz AQI forecast: next 48 hours
Over the next 24 hours the AQI is forecast to range from 99 around Mon 4:00 am to 182 around Mon 8:00 pm, from "Moderate" at best to "Unhealthy" at worst.
The following day is expected to be cleaner, averaging about 128 against 158 for the next 24 hours.
| Local time (Asia/Aden) | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Mon 4:00 am | 99 | Moderate | 128.5 | 542 | 25 |
| Mon 7:00 am | 137 | Unhealthy for Sensitive Groups | 113.9 | 442 | 48 |
| Mon 10:00 am | 152 | Unhealthy | 31.9 | 217 | 97 |
| Mon 1:00 pm | 157 | Unhealthy | 35.4 | 237 | 90 |
| Mon 4:00 pm | 169 | Unhealthy | 27 | 147 | 82 |
| Mon 7:00 pm | 178 | Unhealthy | 40.9 | 186 | 66 |
| Mon 10:00 pm | 180 | Unhealthy | 56.8 | 220 | 43 |
| Tue 1:00 am | 167 | Unhealthy | 68.7 | 268 | 38 |
| Tue 4:00 am | 152 | Unhealthy | 75.7 | 299 | 43 |
| Tue 7:00 am | 139 | Unhealthy for Sensitive Groups | 74 | 291 | 61 |
| Tue 10:00 am | 134 | Unhealthy for Sensitive Groups | 23.9 | 116 | 93 |
| Tue 1:00 pm | 131 | Unhealthy for Sensitive Groups | 25.1 | 129 | 85 |
| Tue 4:00 pm | 129 | Unhealthy for Sensitive Groups | 23.2 | 99 | 84 |
| Tue 7:00 pm | 127 | Unhealthy for Sensitive Groups | 23.3 | 91 | 78 |
| Tue 10:00 pm | 120 | Unhealthy for Sensitive Groups | 26.5 | 107 | 61 |
| Wed 1:00 am | 111 | Unhealthy for Sensitive Groups | 35.7 | 144 | 37 |
| Wed 4:00 am | 100 | Moderate | 39.8 | 145 | 24 |
Every third hour of the CAMS forecast via Open-Meteo. US AQI uses rolling averages (24 h for particles, 8 h for ozone), so it moves more slowly than the hourly concentrations.
Best time to be outside in Taiz today
Between 6 am and 9 pm local time, the cleanest air today is forecast around 6:00 am (AQI 125, Unhealthy for Sensitive Groups) and the worst around 8:00 pm (AQI 182). That is a swing of 57 points, so a run or walk around 6:00 am is noticeably better.
Taiz vs the rest of Yemen
Across 6 Yemen cities we track, the average US AQI right now is 62 (Moderate). Taiz at 99 is 37 points worse than average.
It ranks 6 of 6 from cleanest to most polluted; the cleanest is Sanaa (23) and the most polluted Taiz (113).
For context, the median across 3,556 cities worldwide is 58.
Air quality in cities near Taiz
| City | Distance | US AQI | Category | PM2.5 µg/m³ |
|---|---|---|---|---|
| Ibb | 46 km | 36 | Good | 12.8 |
| Aden | 142 km | 70 | Moderate | 23.9 |
| Al Ḩudaydah | 178 km | 53 | Moderate | 15.6 |
| Sanaa | 198 km | 23 | Good | 4.5 |
| Djibouti | 241 km | 29 | Good | 7.5 |
| Balbala | 245 km | 29 | Good | 7.5 |
Model vs measured
We found no measured PM2.5 sensor cell within 25 km of Taiz, so the numbers on this page are model estimates. Models capture regional pollution well but can miss very local sources such as a busy road or a nearby fire.
Wildfire smoke
PM2.5 is forecast to reach 129 µg/m³ in the next 24 hours while NASA satellites detected 2 fire hotspots within 300 km in the last day (nearest about 293 km away). Smoke is a likely contributor: keep windows closed, run an air purifier or HVAC filter, and check the fire map before heading out.
Advice for sensitive groups
At 99, most people are fine outdoors. If you are unusually sensitive to PM2.5, keep long or intense workouts to the cleaner hours shown above.
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Values on this page are modelled by CAMS (Copernicus) and served by Open-Meteo; they are estimates for the area around the city centre, not readings from an official monitor.
Nearby cities
More for Taiz
Air quality elsewhere
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), NASA FIRMS.