Air Quality
2.8/5
22.3 µg/m³Sensitive Groups
Air Quality Profile
Santa Ana reports an annual PM2.5 of 22.3 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Santa Ana
El Salvador
El SalvadorAnnual Average
ModerateWHO annual classification
22.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2929 µg/m³ — Poor
2727 µg/m³ — Poor
2323 µg/m³ — Moderate
2525 µg/m³ — Moderate
2424 µg/m³ — Moderate
2626 µg/m³ — Poor
2525 µg/m³ — Moderate
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2929 µg/m³ — Poor
2727 µg/m³ — Poor
2323 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
2525 µg/m³ — Moderate
2424 µg/m³ — Moderate
2626 µg/m³ — Poor
2525 µg/m³ — Moderate
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
Best months: Jan, Nov–DecWorst months: Apr–May, Sep
Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Air Quality Profile
Santa Ana reports an annual PM2.5 of 22.3 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Santa AnaEl Salvador
El SalvadorAnnual Average
ModerateWHO annual classification
22.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2929 µg/m³ — Poor
2727 µg/m³ — Poor
2323 µg/m³ — Moderate
2525 µg/m³ — Moderate
2424 µg/m³ — Moderate
2626 µg/m³ — Poor
2525 µg/m³ — Moderate
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2929 µg/m³ — Poor
2727 µg/m³ — Poor
2323 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
2525 µg/m³ — Moderate
2424 µg/m³ — Moderate
2626 µg/m³ — Poor
2525 µg/m³ — Moderate
1717 µg/m³ — Moderate
1717 µg/m³ — Moderate
Best months: Jan, Nov–DecWorst months: Apr–May, Sep
Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Who thrives in Santa Ana
Things to consider in Santa Ana
PM2.5 annual average of 22.3 µg/m³ exceeds the WHO interim target of 15 µg/m³. The WHO guideline value is 5 µg/m³.
Data sources: WHO (air quality), OECD (safety).
Why not Santa Ana?
Why not Santa Ana? Honestly, air quality could be better — Santa Ana's 22.3 µg/m³ annual PM2.5 is above WHO guidelines, though still within ranges common for larger cities.
Frequently asked about Santa Ana
▶How many sunny days does Santa Ana have per year?
Santa Ana averages approximately 287 sunny days per year, based on historical climate data.
▶What is the air quality in Santa Ana?
Santa Ana has an annual PM2.5 concentration of 22.3 µg/m³, classified as "Moderate" by WHO standards. Above WHO targets. Some respiratory effects possible with prolonged exposure.