Air Quality Lab — Porto Alegre, Brazil
Air Quality Profile
Porto Alegre reports an annual PM2.5 of 12.6 µg/m³. That's roughly double the WHO 2021 guideline but still far below the EU annual limit of 25 µg/m³.
Porto Alegre
Brazil
BrazilAnnual Average
FairWHO annual classification
12.6µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1111 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1111 µg/m³ — Fair
Best months: Apr, Nov–DecWorst months: Jun–Aug
Fair10–15 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Brazil
Porto Alegre: 12.6 µg/m³. Typical range in Brazil: 8.4–13.2 µg/m³. Low anchor: Itabuna, 7.2 µg/m³. High anchor: Manaus, 31.4 µg/m³.
1,136 cities tracked