Air Quality
2.7/5
23.1 µg/m³Sensitive Groups
Air Quality Profile
Aley reports an annual PM2.5 of 23.1 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Aley
Lebanon
LebanonAnnual Average
ModerateWHO annual classification
23.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3030 µg/m³ — Poor
2828 µg/m³ — Poor
2626 µg/m³ — Poor
2323 µg/m³ — Moderate
2020 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2323 µg/m³ — Moderate
2828 µg/m³ — Poor
Jan
Feb
Mar
Apr
May
Jun
3030 µg/m³ — Poor
2828 µg/m³ — Poor
2626 µg/m³ — Poor
2323 µg/m³ — Moderate
2020 µg/m³ — Moderate
2121 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1919 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2323 µg/m³ — Moderate
2828 µg/m³ — Poor
Best months: Jul, Sep–OctWorst months: Jan–Feb, Dec
Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Air Quality Profile
Aley reports an annual PM2.5 of 23.1 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
AleyLebanon
LebanonAnnual Average
ModerateWHO annual classification
23.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3030 µg/m³ — Poor
2828 µg/m³ — Poor
2626 µg/m³ — Poor
2323 µg/m³ — Moderate
2020 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2323 µg/m³ — Moderate
2828 µg/m³ — Poor
Jan
Feb
Mar
Apr
May
Jun
3030 µg/m³ — Poor
2828 µg/m³ — Poor
2626 µg/m³ — Poor
2323 µg/m³ — Moderate
2020 µg/m³ — Moderate
2121 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1919 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2323 µg/m³ — Moderate
2828 µg/m³ — Poor
Best months: Jul, Sep–OctWorst months: Jan–Feb, Dec
Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Who thrives in Aley
Great fit
Decent fit
Things to consider in Aley
PM2.5 annual average of 23.1 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 Aley?
Why not Aley? Honestly, air quality could be better — Aley's 23.1 µg/m³ annual PM2.5 is above WHO guidelines, though still within ranges common for larger cities.
Frequently asked about Aley
▶How many sunny days does Aley have per year?
Aley averages approximately 304 sunny days per year, based on historical climate data.
▶What is the air quality in Aley?
Aley has an annual PM2.5 concentration of 23.1 µg/m³, classified as "Moderate" by WHO standards. Above WHO targets. Some respiratory effects possible with prolonged exposure.