Air Quality Lab — Christchurch, New Zealand
Air Quality Profile
Christchurch reports an annual PM2.5 of 7.1 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Christchurch
New Zealand
New ZealandAnnual Average
GoodWHO annual classification
7.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
7.97.9 µg/m³ — Good
7.07.0 µg/m³ — Good
7.17.1 µg/m³ — Good
7.17.1 µg/m³ — Good
6.46.4 µg/m³ — Good
6.96.9 µg/m³ — Good
7.27.2 µg/m³ — Good
7.47.4 µg/m³ — Good
7.07.0 µg/m³ — Good
6.86.8 µg/m³ — Good
6.86.8 µg/m³ — Good
7.17.1 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
7.97.9 µg/m³ — Good
7.07.0 µg/m³ — Good
7.17.1 µg/m³ — Good
7.17.1 µg/m³ — Good
6.46.4 µg/m³ — Good
6.96.9 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
7.27.2 µg/m³ — Good
7.47.4 µg/m³ — Good
7.07.0 µg/m³ — Good
6.86.8 µg/m³ — Good
6.86.8 µg/m³ — Good
7.17.1 µg/m³ — Good
Best months: May, Oct–NovWorst months: Jan, Jul–Aug
Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across New Zealand
Christchurch: 7.1 µg/m³. Typical range in New Zealand: 5.9–6.4 µg/m³. Low anchor: Invercargill, 5.4 µg/m³.
33 cities tracked