Air Quality Lab — Ḩajjah, Yemen
Air Quality Profile·
Ḩajjah reports an annual PM2.5 of 28.5 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Ḩajjah
Yemen
YemenAnnual Average
PoorWHO annual classification
28.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
2323 µg/m³ — Moderate
2424 µg/m³ — Moderate
3737 µg/m³ — Unhealthy
2626 µg/m³ — Poor
2929 µg/m³ — Poor
4242 µg/m³ — Unhealthy
3030 µg/m³ — Poor
2828 µg/m³ — Poor
3636 µg/m³ — Unhealthy
2727 µg/m³ — Poor
2222 µg/m³ — Moderate
1717 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
2323 µg/m³ — Moderate
2424 µg/m³ — Moderate
3737 µg/m³ — Unhealthy
2626 µg/m³ — Poor
2929 µg/m³ — Poor
4242 µg/m³ — Unhealthy
Jul
Aug
Sep
Oct
Nov
Dec
3030 µg/m³ — Poor
2828 µg/m³ — Poor
3636 µg/m³ — Unhealthy
2727 µg/m³ — Poor
2222 µg/m³ — Moderate
1717 µg/m³ — Moderate
Best months: Jan, Nov–DecWorst months: Mar, Jun, Sep
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Yemen
Ḩajjah: 28.5 µg/m³. Typical range in Yemen: 26.3–35.9 µg/m³. Low anchor: Aden, 21.4 µg/m³. High anchor: Al Ḩudaydah, 39.0 µg/m³.
23 cities tracked