Air Quality Lab — Cluj-Napoca, Romania
Air Quality Profile
Cluj-Napoca reports an annual PM2.5 of 14.5 µg/m³. That's roughly double the WHO 2021 guideline but still far below the EU annual limit of 25 µg/m³.
Cluj-Napoca
Romania
RomaniaAnnual Average
FairWHO annual classification
14.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1818 µg/m³ — Moderate
1717 µg/m³ — Moderate
1616 µg/m³ — Moderate
1515 µg/m³ — Fair
9.99.9 µg/m³ — Good
9.19.1 µg/m³ — Good
1010 µg/m³ — Fair
1111 µg/m³ — Fair
1111 µg/m³ — Fair
1515 µg/m³ — Moderate
2222 µg/m³ — Moderate
1919 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
1818 µg/m³ — Moderate
1717 µg/m³ — Moderate
1616 µg/m³ — Moderate
1515 µg/m³ — Fair
9.99.9 µg/m³ — Good
9.19.1 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
1010 µg/m³ — Fair
1111 µg/m³ — Fair
1111 µg/m³ — Fair
1515 µg/m³ — Moderate
2222 µg/m³ — Moderate
1919 µg/m³ — Moderate
Best months: May–JulWorst months: Jan, Nov–Dec
Good5–10 µg/m³Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Romania
Cluj-Napoca: 14.5 µg/m³. Typical range in Romania: 13.3–14.6 µg/m³. Low anchor: Borşa, 11.1 µg/m³. High anchor: Bucharest, 16.0 µg/m³.
125 cities tracked