Air Quality Lab — Riyadh, Saudi Arabia
Air Quality Profile
Riyadh reports an annual PM2.5 of 81.0 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Riyadh
Saudi Arabia
Saudi ArabiaAnnual Average
HazardousWHO annual classification
81.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
8282 µg/m³ — Hazardous
7878 µg/m³ — Hazardous
8686 µg/m³ — Hazardous
7979 µg/m³ — Hazardous
9090 µg/m³ — Hazardous
107107 µg/m³ — Hazardous
8484 µg/m³ — Hazardous
8484 µg/m³ — Hazardous
8080 µg/m³ — Hazardous
6767 µg/m³ — Very Unhealthy
6464 µg/m³ — Very Unhealthy
7171 µg/m³ — Very Unhealthy
Jan
Feb
Mar
Apr
May
Jun
8282 µg/m³ — Hazardous
7878 µg/m³ — Hazardous
8686 µg/m³ — Hazardous
7979 µg/m³ — Hazardous
9090 µg/m³ — Hazardous
107107 µg/m³ — Hazardous
Jul
Aug
Sep
Oct
Nov
Dec
8484 µg/m³ — Hazardous
8484 µg/m³ — Hazardous
8080 µg/m³ — Hazardous
6767 µg/m³ — Very Unhealthy
6464 µg/m³ — Very Unhealthy
7171 µg/m³ — Very Unhealthy
Best months: Oct–DecWorst months: Mar, May–Jun
Very Unhealthy50–75 µg/m³Hazardous>75 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Saudi Arabia
Riyadh: 81.0 µg/m³. Typical range in Saudi Arabia: 38.2–67.3 µg/m³. Low anchor: Duba, 25.0 µg/m³. High anchor: Al Kharj, 113.7 µg/m³.
65 cities tracked