Air Quality Lab — Arequipa, Peru
Air Quality Profile
Arequipa reports an annual PM2.5 of 15.1 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Arequipa
Peru
PeruAnnual Average
ModerateWHO annual classification
15.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1111 µg/m³ — Fair
1313 µg/m³ — Fair
1313 µg/m³ — Fair
1515 µg/m³ — Moderate
1515 µg/m³ — Moderate
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
1616 µg/m³ — Moderate
1414 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1111 µg/m³ — Fair
1313 µg/m³ — Fair
1313 µg/m³ — Fair
1515 µg/m³ — Moderate
1515 µg/m³ — Moderate
1717 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1717 µg/m³ — Moderate
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
1616 µg/m³ — Moderate
1414 µg/m³ — Fair
Best months: Jan–MarWorst months: Jun, Sep–Oct
Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Peru
Arequipa: 15.1 µg/m³. Typical range in Peru: 14.0–16.6 µg/m³. Low anchor: Chimbote, 12.1 µg/m³. High anchor: Lima, 26.7 µg/m³.
109 cities tracked