Air Quality
2.8/5
22.3 µg/m³Sensitive Groups
Air Quality Profile
Keren 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.
Keren
Eritrea
EritreaAnnual Average
ModerateWHO annual classification
22.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1212 µg/m³ — Fair
1818 µg/m³ — Moderate
2727 µg/m³ — Poor
2020 µg/m³ — Moderate
3232 µg/m³ — Poor
3030 µg/m³ — Poor
2121 µg/m³ — Moderate
2525 µg/m³ — Poor
3434 µg/m³ — Poor
2828 µg/m³ — Poor
1313 µg/m³ — Fair
9.19.1 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
1212 µg/m³ — Fair
1818 µg/m³ — Moderate
2727 µg/m³ — Poor
2020 µg/m³ — Moderate
3232 µg/m³ — Poor
3030 µg/m³ — Poor
Jul
Aug
Sep
Oct
Nov
Dec
2121 µg/m³ — Moderate
2525 µg/m³ — Poor
3434 µg/m³ — Poor
2828 µg/m³ — Poor
1313 µg/m³ — Fair
9.19.1 µg/m³ — Good
Best months: Jan, Nov–DecWorst months: May–Jun, Sep
Good5–10 µg/m³Fair10–15 µg/m³Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Air Quality Profile
Keren 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.
KerenEritrea
EritreaAnnual Average
ModerateWHO annual classification
22.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1212 µg/m³ — Fair
1818 µg/m³ — Moderate
2727 µg/m³ — Poor
2020 µg/m³ — Moderate
3232 µg/m³ — Poor
3030 µg/m³ — Poor
2121 µg/m³ — Moderate
2525 µg/m³ — Poor
3434 µg/m³ — Poor
2828 µg/m³ — Poor
1313 µg/m³ — Fair
9.19.1 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
1212 µg/m³ — Fair
1818 µg/m³ — Moderate
2727 µg/m³ — Poor
2020 µg/m³ — Moderate
3232 µg/m³ — Poor
3030 µg/m³ — Poor
Jul
Aug
Sep
Oct
Nov
Dec
2121 µg/m³ — Moderate
2525 µg/m³ — Poor
3434 µg/m³ — Poor
2828 µg/m³ — Poor
1313 µg/m³ — Fair
9.19.1 µg/m³ — Good
Best months: Jan, Nov–DecWorst months: May–Jun, Sep
Good5–10 µg/m³Fair10–15 µg/m³Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Who thrives in Keren
Things to consider in Keren
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 Keren?
Why not Keren? Honestly, air quality could be better — Keren's 22.3 µg/m³ annual PM2.5 is above WHO guidelines, though still within ranges common for larger cities.
Frequently asked about Keren
▶How many sunny days does Keren have per year?
Keren averages approximately 320 sunny days per year, based on historical climate data.
▶What is the air quality in Keren?
Keren 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.