Tanzania · Mwanza · 2 cities
Air quality in Mwanza today The AQI right now, city by city
Right now, Sengerema has the cleanest air of the 2 cities we track in Mwanza (AQI 17, Good), and Mwanza the worst (AQI 21, Good). Mwanza has the most tree cover, at 23.5% — #13 of 33 cities measured in Tanzania.
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.
- cities tracked
- 2
- average tree cover
- 17.0%
- Tanzania: 20.7%
- worst air now: Mwanza
- 21
- cleanest air now: Sengerema
- 17
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Mwanza
Air quality today across Mwanza, city by city
| Mwanza | 21Good | 23.5% | 15.6K | #13 of 33 |
|---|---|---|---|---|
| Sengerema | 17Good | 10.6% | 60.9K | #24 of 33 |
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 Tanzania.
Deforestation · 2001–2025
How much forest has Mwanza lost?
Since 2001, Mwanza has lost about 8,340 hectares of forest (about 12,000 football pitches): 15% of the forest it had in 2000. The biggest cause was logging (46%), after which forest can grow back. About 3,660 hectares (44%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 8,340 haabout 12,000 football pitches
- Share of its forest
- 15%of what there was in 2000
- Cleared for good
- 3,660 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 225 ha | 483 ha | 708 ha |
| 2002 | 46 ha | 348 ha | 393 ha |
| 2003 | 37 ha | 253 ha | 290 ha |
| 2004 | 14 ha | 94 ha | 108 ha |
| 2005 | 135 ha | 319 ha | 454 ha |
| 2006 | 60 ha | 174 ha | 234 ha |
| 2007 | 213 ha | 446 ha | 659 ha |
| 2008 | 22 ha | 51 ha | 72 ha |
| 2009 | 96 ha | 156 ha | 252 ha |
| 2010 | 53 ha | 93 ha | 146 ha |
| 2011 | 204 ha | 139 ha | 343 ha |
| 2012 | 94 ha | 102 ha | 196 ha |
| 2013 | 102 ha | 179 ha | 281 ha |
| 2014 | 194 ha | 151 ha | 345 ha |
| 2015 | 51 ha | 157 ha | 208 ha |
| 2016 | 251 ha | 202 ha | 453 ha |
| 2017 | 196 ha | 83 ha | 279 ha |
| 2018 | 341 ha | 332 ha | 673 ha |
| 2019 | 167 ha | 179 ha | 346 ha |
| 2020 | 273 ha | 243 ha | 516 ha |
| 2021 | 65 ha | 95 ha | 160 ha |
| 2022 | 110 ha | 69 ha | 179 ha |
| 2023 | 256 ha | 161 ha | 417 ha |
| 2024 | 289 ha | 99 ha | 388 ha |
| 2025 | 165 ha | 77 ha | 242 ha |
Forest loss is slowing down: about 277 hectares a year in 2021–2025, down from 453 hectares a year in 2016–2020. The worst year was 2001, when about 708 hectares of forest were lost.
What is causing deforestation in Mwanza?
- Loggingcan grow back46% · 3,800 ha
- Farms, pasture and plantationscleared for good43% · 3,600 ha
- Shifting farmingcan grow back4.9% · 406 ha
Also: storms, floods and other natural causes, towns and roads, unknown 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
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