Air Quality Lab — Sydney, Canada
Air Quality Profile·
Sydney reports an annual PM2.5 of 4.1 µg/m³. That's below the WHO 2021 annual guideline of 5 µg/m³ — cleaner than most cities on the continent.
Sydney
Canada
CanadaAnnual Average
ExcellentWHO annual classification
4.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3.53.5 µg/m³ — Excellent
4.14.1 µg/m³ — Excellent
4.44.4 µg/m³ — Excellent
3.53.5 µg/m³ — Excellent
3.73.7 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
5.25.2 µg/m³ — Good
4.54.5 µg/m³ — Excellent
4.14.1 µg/m³ — Excellent
3.93.9 µg/m³ — Excellent
4.34.3 µg/m³ — Excellent
3.63.6 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
3.53.5 µg/m³ — Excellent
4.14.1 µg/m³ — Excellent
4.44.4 µg/m³ — Excellent
3.53.5 µg/m³ — Excellent
3.73.7 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
Jul
Aug
Sep
Oct
Nov
Dec
5.25.2 µg/m³ — Good
4.54.5 µg/m³ — Excellent
4.14.1 µg/m³ — Excellent
3.93.9 µg/m³ — Excellent
4.34.3 µg/m³ — Excellent
3.63.6 µg/m³ — Excellent
Best months: Jan, Apr, DecWorst months: Jun–Aug
Excellent0–5 µg/m³Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Canada
Sydney: 4.1 µg/m³. Typical range in Canada: 5.3–6.6 µg/m³. Low anchor: Glace Bay, 3.8 µg/m³. High anchor: Toronto, 7.6 µg/m³.
194 cities tracked