Skip to content
Airleaf
Air quality now: Hannover

Germany · Lower Saxony · 8 cities

Air quality in Lower Saxony today The AQI right now, city by city

Right now, Göttingen has the cleanest air of the 8 cities we track in Lower Saxony (AQI 44, Good), and Oldenburg the worst (AQI 106, Unhealthy for sensitive groups). Göttingen has the most tree cover, at 45.0% — #17 of 71 cities measured in Germany.

Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.

AQI 76

Average right now

Moderate

US EPA index, across 8 cities
cities tracked
8
average tree cover
36.5%
Germany: 38.4%
worst air now: Oldenburg
106
cleanest air now: Göttingen
44

Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.

Lower Saxony · average AQI 76

Air quality today across Lower Saxony, city by city

Current air quality and tree cover for cities in Lower Saxony, Germany
Hannover82Moderate35.3%—#39 of 71
Braunschweig77Moderate37.6%—#35 of 71
Osnabrück66Moderate36.9%—#36 of 71
Oldenburg106Unhealthy for sensitive groups42.9%—#22 of 71
Wolfsburg77Moderate34.6%—#42 of 71
Göttingen44Good45.0%—#17 of 71
Salzgitter77Moderate23.3%20.3K#68 of 71
Hildesheim77Moderate36.6%—#38 of 71

Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in Germany.

Deforestation · 2001–2025

How much forest has Lower Saxony lost?

Since 2001, Lower Saxony has lost about 139,000 hectares of forest (about 190,000 football pitches): 11% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 3,840 hectares (2.8%) was deforestation: forest cleared for good for farms, mines or towns.

Forest lost since 2001
139,000 haabout 190,000 football pitches
Share of its forest
11%of what there was in 2000
Cleared for good
3,840 hadeforestation: turned into farms, mines or towns
Forest lost each year in Lower Saxony, 2001–2025

Hectares of forest lost each year

Forest lost each year in Lower Saxony, 2001–2025. Use the left and right arrow keys to read each year.21.7K

Show the figures as a table
Forest lost each year in Lower Saxony, 2001–2025
YearCleared for goodCan grow backTotal
2001105 ha1,270 ha1,370 ha
200254 ha582 ha636 ha
200361 ha367 ha428 ha
2004170 ha3,050 ha3,220 ha
2005196 ha2,550 ha2,740 ha
2006222 ha3,920 ha4,140 ha
2007162 ha4,550 ha4,710 ha
2008236 ha4,830 ha5,070 ha
2009200 ha1,850 ha2,050 ha
2010254 ha6,090 ha6,340 ha
2011137 ha1,220 ha1,360 ha
2012155 ha2,530 ha2,690 ha
201367 ha1,190 ha1,260 ha
201495 ha1,300 ha1,400 ha
201592 ha1,340 ha1,440 ha
2016130 ha2,150 ha2,280 ha
2017132 ha2,680 ha2,820 ha
2018199 ha8,060 ha8,260 ha
2019283 ha15,000 ha15,300 ha
2020199 ha21,500 ha21,700 ha
2021172 ha19,000 ha19,200 ha
2022147 ha10,100 ha10,200 ha
2023172 ha11,900 ha12,100 ha
2024112 ha4,340 ha4,450 ha
202585 ha3,570 ha3,650 ha

Forest loss has stayed about the same: about 9,920 hectares a year in 2021–2025, against 10,100 hectares a year in 2016–2020. The worst year was 2020, when about 21,700 hectares of forest were lost.

What is causing deforestation in Lower Saxony?

  • Loggingcan grow back96% · 133,000 ha
  • Towns and roadscleared for good2% · 2,720 ha
  • Unknown causescause unknown1.2% · 1,690 ha

Also: farms, pasture and plantations, wildfires, mining and energy, storms, floods and other natural causes.

Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.

Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. How it's measured

Other states in Germany

Clean-air buying guides

Cleaner air at home in Lower Saxony

Picked by tested clean-air delivery rate (CADR), noise and running cost, from independent test labels. No brand pays to be listed.

All buying guides

Your own street

Check any address in Lower Saxony, not just the big cities.

Open the map