City report · Bremen, Germany
Bremerhaven Air quality today
Air quality in Bremerhaven currently reads AQI 55 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 55
Moderate
- PM2.5, fine particles (µg/m³)
- 11.1
- tree cover
- 24.6%
- trees in this area
- 54.3K
- more trees needed
- 11.9K
Measured across a 2 km radius around Mitte-Nord, Mitte, 27568 Bremerhaven, Germany (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Bremerhaven · AQI 55 (Moderate)
Bremerhaven's tree count comes to 54,253 trees across 8.82 km² of land, 5 points below the 30% tree-cover level considered healthy for this area, so roughly 11,909 more trees would close the gap.
Air quality detail
Air quality in Bremerhaven today: AQI 55, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Bremerhaven-Hansastraße, 1.1 km away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
11.1
PM10
11.7
NO₂
8.9
O₃
31.6
SO₂
—
CO
280.0
Data: OpenAQ · EEA
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Bremerhaven's daily AQI at 63 on average, from 33 on Nov 4 to an hourly peak of 94 on Nov 10.
Where Bremerhaven stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Bremerhaven: Below target
24.6% tree cover against a 30% healthy-neighborhood target, across 8.82 km² of land.
Trees in this area
54,253
Target trees
66,162
More trees needed
11,909
CO₂ if planted / yr
262.0 t
Deforestation · 2001–2025
How much forest has Bremerhaven lost?
Since 2001, the area within 10 km of Bremerhaven has lost about 35 hectares of forest (about 49 football pitches): 1.4% of the forest it had in 2000. The biggest cause was towns and roads (43%). About 15 hectares (42%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 35 haabout 49 football pitches
- Share of its forest
- 1.4%of what there was in 2000
- Cleared for good
- 15 hadeforestation: turned into farms, mines or towns
The worst year was 2022, when about 3 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | 1 ha | 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | 2 ha | 2 ha |
| 2005 | under 1 ha | 1 ha | 2 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | 2 ha | under 1 ha | 2 ha |
| 2008 | 1 ha | 1 ha | 3 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | 3 ha | 3 ha |
| 2011 | 3 ha | under 1 ha | 3 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | 3 ha | under 1 ha | 3 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 1 ha | under 1 ha | 2 ha |
| 2017 | 1 ha | under 1 ha | 2 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | 2 ha | 3 ha |
| 2020 | under 1 ha | 2 ha | 2 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | 3 ha | 3 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | 1 ha | 1 ha |
What is causing deforestation around Bremerhaven?
- Towns and roadscleared for good43% · 15 ha
- Loggingcan grow back39% · 14 ha
- Unknown causescause unknown17% · 6 ha
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 1,830 ha
- Forest in 2020
- 2,010 ha
- Overall change
- +175 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Bremerhaven grew from about 1,830 hectares to 2,010 hectares, a net gain of about 175 hectares (+9.5%). New forest grew on about 236 hectares, while 61 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
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. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Bremerhaven
What is the air quality (AQI) in Bremerhaven right now?
The latest reading for Bremerhaven shows an AQI of 55 (Moderate), measured Nov 11, 16:00 local time by the Bremerhaven-Hansastraße ground monitoring station, 1.1 km away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Bremerhaven today?
At AQI 55 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Bremerhaven been like this week?
Over the last 7 days, the CAMS air-quality model put Bremerhaven's daily AQI at 63 on average, from 33 on Nov 4 to an hourly peak of 94 on Nov 10. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Bremerhaven lost since 2001?
Since 2001, the area within 10 km of Bremerhaven has lost about 35 hectares of forest (about 49 football pitches): 1.4% of the forest it had in 2000. The biggest cause was towns and roads (43%). About 15 hectares (42%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Bremerhaven grew from about 1,830 hectares to 2,010 hectares, a net gain of about 175 hectares (+9.5%). New forest grew on about 236 hectares, while 61 hectares were lost.
What is the tree count in Bremerhaven?
Bremerhaven has an estimated 54,253 trees across the 8.82 km² of land measured — 24.6% tree cover, 5 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Bremerhaven need?
Bremerhaven needs roughly 11,909 more trees to close a 5-point shortfall against its 30% tree-cover target — about 262.0 t of extra CO₂ absorbed per year once grown.
How are Bremerhaven's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Mitte-Nord, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Mitte-Nord; the tree count is an estimate derived from that cover.
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