Air Quality Lab — San Luis, United States
Air Quality Profile·
San Luis reports an annual PM2.5 of 9.7 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
San Luis
United States
United StatesAnnual Average
GoodWHO annual classification
9.7µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
8.48.4 µg/m³ — Good
8.78.7 µg/m³ — Good
7.07.0 µg/m³ — Good
1010 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
9.69.6 µg/m³ — Good
1010 µg/m³ — Fair
8.78.7 µg/m³ — Good
1111 µg/m³ — Fair
7.97.9 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
8.48.4 µg/m³ — Good
8.78.7 µg/m³ — Good
7.07.0 µg/m³ — Good
1010 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
1212 µg/m³ — Fair
9.69.6 µg/m³ — Good
1010 µg/m³ — Fair
8.78.7 µg/m³ — Good
1111 µg/m³ — Fair
7.97.9 µg/m³ — Good
Best months: Jan, Mar, DecWorst months: May–Jul
Good5–10 µg/m³Fair10–15 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across United States
San Luis: 9.7 µg/m³. Typical range in United States: 6.4–7.8 µg/m³. Low anchor: Anchorage, 4.3 µg/m³. High anchor: Los Angeles, 13.8 µg/m³.
2,121 cities tracked