All New Zealand reports
City report · New Zealand
Christchurch
Measured across a 2 km radius around Christchurch Central City, Christchurch, New Zealand (12.57 km²)
- Tree cover
- 27%
- Air quality
- 23Good
- Trees in this area
- 85.2K
- More trees needed
- 8.9K
- Area analysed
- 12.57 km²
- Satellite image
- Sep 19, 2026
Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 19, 2026
Tree cover detail
Below target
27.2% tree cover against a 30% healthy-neighbourhood target, across 12.57 km².
Trees in this area
85,169
Target trees
94,032
More trees needed
8,863
CO₂ if planted / yr
195.0 t
Air quality detail
AQI 23Good
Observed Sep 20, 2026 via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
8
PM10
13.4
NO₂
0.3
O₃
52
SO₂
0.2
CO
64
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