SmogRank / World / Colombia / Bogota D.C. / October 2026

Most unhealthy days in Bogota D.C., Colombia, October 2026

1 city in Bogota D.C., Colombia ranked by its share of unhealthy days so far (9 of 31 days). The most unhealthy days: Bogotá, Colombia, 0 of 8 measured days. A city needs measurements on 70% of the days to be ranked.

Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Cities with the same share are ordered by more unhealthy days, then by the higher average.

  1. 1Bogotá
    0%0 of 8
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

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SmogRank, most polluted cities in Bogota D.C., Colombia by unhealthy days (PM2.5), October 2026 (so far): each city's share of its measured days with a daily mean over 35.4 µg/m³, cities measured on 7 or more of the 9 days so far. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/co/region/bogota-d-c/history/2026-10?by=days (accessed 11 Oct 2026). Some readings from Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published.

Download top 10 by average (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.