SmogRank / Countries / Peru / September 2025

Most polluted cities in Peru, September 2025

4 cities in Peru ranked by their average PM2.5 over the 30 days. Worst: Santa Anita - Los Ficus at 44.1 µg/m³, #18 of 2,439 cities in the world. Cleanest: Callao at 28.1. A city needs measurements on 70% of the days to be ranked.

  1. 1Santa Anita - Los FicusLima region
    44.1
  2. 2LimaLima Province
    35.6
  3. 3San Francisco De BorjaLima region
    30.6
  4. 4CallaoCallao
    28.1
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, September 2025 · Peru now