SmogRank / World / South America / Chile / Arica y Parinacota Region

Most polluted cities in Arica y Parinacota Region, Chile

1 measured city, last 7 days; 1 above the WHO 24-hour guideline. Worst: Arica at 20.3 µg/m³, #185 in the world.

Tarapacá: 1 measured cityArica y Parinacota Region: 1 measured city#1 Arica: 20.3 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
  1. 1Arica 20.3
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

PM2.5 in µg/m³, coloured by the US EPA's PM2.5 categories. 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 Arica y Parinacota Region, Chile, PM2.5, last 7 days to 2 Oct 2026, 03:00 UTC, smogrank.com/cl/region/arica-y-parinacota-region?w=7d.

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Updated 2026-10-02 03:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.