SmogRank / World / Chile / Biobio / June 2024

Most unhealthy days in Biobio, Chile, June 2024

11 cities in Biobio, Chile ranked by their share of unhealthy days over the 30 days. The most unhealthy days: Nacimiento, Chile, 24 of 30 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. Ties go to the higher average.

← Nacimiento 80% 70%0
Every city in Biobio, Chile ranked for June 2024, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Nacimiento
    24 of 30
  2. 2Curanilahue
    17 of 26
  3. 3Hualpén
    13 of 23
  4. 4Hualqui
    13 of 28
  5. 5Los Ángeles
    12 of 30
  6. 6Talcahuano
    12 of 30
  7. 7Coronel
    12 of 30
  8. 8Concepción
    8 of 30
  9. 9San Pedro de la Paz
    6 of 26
  10. 10Chiguayante
    6 of 29
  11. 11Tomé
    6 of 30
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

All cities in the world, June 2024 · All cities in Chile, June 2024 · Biobio now

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SmogRank, most polluted cities in Biobio, Chile, by unhealthy days, PM2.5, June 2024, smogrank.com/cl/region/biobio/history/2024-06?by=days (accessed 7 Oct 2026).

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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.