Air Quality Lab — Buin, Chile
Air Quality Profile·
Buin reports an annual PM2.5 of 24.0 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Buin
Chile
ChileAnnual Average
ModerateWHO annual classification
24.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1414 µg/m³ — Fair
1515 µg/m³ — Moderate
1616 µg/m³ — Moderate
2424 µg/m³ — Moderate
3434 µg/m³ — Poor
4747 µg/m³ — Unhealthy
4040 µg/m³ — Unhealthy
3434 µg/m³ — Poor
2323 µg/m³ — Moderate
1616 µg/m³ — Moderate
1212 µg/m³ — Fair
1515 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1414 µg/m³ — Fair
1515 µg/m³ — Moderate
1616 µg/m³ — Moderate
2424 µg/m³ — Moderate
3434 µg/m³ — Poor
4747 µg/m³ — Unhealthy
Jul
Aug
Sep
Oct
Nov
Dec
4040 µg/m³ — Unhealthy
3434 µg/m³ — Poor
2323 µg/m³ — Moderate
1616 µg/m³ — Moderate
1212 µg/m³ — Fair
1515 µg/m³ — Fair
Best months: Jan, Nov–DecWorst months: May–Jul
Fair10–15 µg/m³Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Chile
Buin: 24.0 µg/m³. Typical range in Chile: 15.3–20.5 µg/m³. Low anchor: Coquimbo, 13.9 µg/m³. High anchor: Santiago, 27.5 µg/m³.
87 cities tracked