Air Quality Lab — Petrich, Bulgaria
Air Quality Profile·
Petrich reports an annual PM2.5 of 14.4 µg/m³. That's roughly double the WHO 2021 guideline but still far below the EU annual limit of 25 µg/m³.
Petrich
Bulgaria
BulgariaAnnual Average
FairWHO annual classification
14.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1717 µg/m³ — Moderate
2020 µg/m³ — Moderate
1515 µg/m³ — Moderate
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1111 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
1414 µg/m³ — Fair
1919 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
1717 µg/m³ — Moderate
2020 µg/m³ — Moderate
1515 µg/m³ — Moderate
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1111 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
1414 µg/m³ — Fair
1919 µg/m³ — Moderate
Best months: Jun, Sep–OctWorst months: Jan–Feb, Dec
Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Bulgaria
Petrich: 14.4 µg/m³. Typical range in Bulgaria: 14.1–16.4 µg/m³. Low anchor: Karlovo, 12.9 µg/m³. High anchor: Plovdiv, 17.5 µg/m³.
55 cities tracked