Air Quality Lab — Maardu, Estonia
Air Quality Profile·
Maardu reports an annual PM2.5 of 7.0 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Maardu
Estonia
EstoniaAnnual Average
GoodWHO annual classification
7.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
7.47.4 µg/m³ — Good
7.67.6 µg/m³ — Good
8.28.2 µg/m³ — Good
7.07.0 µg/m³ — Good
8.18.1 µg/m³ — Good
7.87.8 µg/m³ — Good
6.46.4 µg/m³ — Good
6.16.1 µg/m³ — Good
5.35.3 µg/m³ — Good
6.66.6 µg/m³ — Good
5.95.9 µg/m³ — Good
7.57.5 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
7.47.4 µg/m³ — Good
7.67.6 µg/m³ — Good
8.28.2 µg/m³ — Good
7.07.0 µg/m³ — Good
8.18.1 µg/m³ — Good
7.87.8 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
6.46.4 µg/m³ — Good
6.16.1 µg/m³ — Good
5.35.3 µg/m³ — Good
6.66.6 µg/m³ — Good
5.95.9 µg/m³ — Good
7.57.5 µg/m³ — Good
Best months: Aug–Sep, NovWorst months: Mar, May–Jun
Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Estonia
Maardu: 7.0 µg/m³. Typical range in Estonia: 5.5–7.0 µg/m³. Low anchor: Kohtla-Järve, 5.4 µg/m³. High anchor: Tallinn, 7.2 µg/m³.
7 cities tracked