City report · Algeria
Saïda Air quality today
Air quality in Saïda currently reads AQI 51 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 51
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 9.7
- tree cover
- 4.0%
- trees in this area
- 12.6K
- more trees needed
- 81.7K
Measured across a 2 km radius around Saïda, Algeria (12.57 km²), from a satellite image of Sep 15, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Saïda · AQI 51 (Moderate)
Saïda's tree count comes to 12,566 trees across 12.57 km², 26 points below the 30% tree-cover level considered healthy for this area, so roughly 81,681 more trees would close the gap.
Air quality detail
Air quality in Saïda today: AQI 51, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 18:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
9.7
PM10
25.4
NO₂
4.9
O₃
41.0
SO₂
1.1
CO
127.0
- 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 Saïda's daily AQI at 34 on average, from 29 on Nov 5 to an hourly peak of 51 on Nov 10.
Where Saïda stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Saïda: Critically low
4.0% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
12,566
Target trees
94,247
More trees needed
81,681
CO₂ if planted / yr
1,797 t
Deforestation · 2001–2025
How much forest has Saïda lost?
Since 2001, the area within 10 km of Saïda has lost about 60 hectares of forest (about 84 football pitches): 18% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. Almost none of it was deforestation, meaning forest cleared for good.
2017: satellite photo from August 2017 of a 5 × 5 km area about 6 km west of the city center.
- Forest lost since 2001
- 60 haabout 84 football pitches
- Share of its forest
- 18%of what there was in 2000
- Cleared for good
- under 1 hadeforestation: turned into farms, mines or towns
The worst year was 2021, when about 34 hectares of forest were lost, mostly to wildfires.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | 2 ha | 2 ha |
| 2004 | under 1 ha | 3 ha | 3 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | 8 ha | 8 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | 34 ha | 34 ha |
| 2022 | under 1 ha | under 1 ha | under 1 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 | 12 ha | 12 ha |
What is causing deforestation around Saïda?
- Wildfirescan grow back91% · 55 ha
- Unknown causescause unknown8.5% · 5 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
- 1,020 ha
- Forest in 2020
- 1,200 ha
- Overall change
- +184 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Saïda grew from about 1,020 hectares to 1,200 hectares, a net gain of about 184 hectares (+18%). New forest grew on about 189 hectares, while 5 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
In the same region
Measured cities near Saïda
Same 2 km radius, same index — so they compare directly.
- Mascara63.0 km
Algeria
- Tree cover
- 5%
- Air quality
- 43
- Sidi Bel Abbes81.7 km
Algeria
- Tree cover
- 4%
- Air quality
- 55
- Relizane107.3 km
Algeria
- Tree cover
- 7%
- Air quality
- 42
- Oran120.2 km
Algeria
- Tree cover
- 5%
- Air quality
- 68
- Tiaret121.9 km
Algeria
- Tree cover
- 9%
- Air quality
- 48
- Mostaganem122.5 km
Algeria
- Tree cover
- 4%
- Air quality
- 59
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Frequently asked
Questions about Saïda
What is the air quality (AQI) in Saïda right now?
The latest reading for Saïda shows an AQI of 51 (Moderate), observed Nov 10, 18:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Saïda today?
At AQI 51 (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 Saïda been like this week?
Over the last 7 days, the CAMS air-quality model put Saïda's daily AQI at 34 on average, from 29 on Nov 5 to an hourly peak of 51 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 Saïda lost since 2001?
Since 2001, the area within 10 km of Saïda has lost about 60 hectares of forest (about 84 football pitches): 18% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. Almost none of it was deforestation, meaning forest cleared for good. Comparing satellite maps from 2000 and 2020, the forest around Saïda grew from about 1,020 hectares to 1,200 hectares, a net gain of about 184 hectares (+18%). New forest grew on about 189 hectares, while 5 hectares were lost.
What is the tree count in Saïda?
Saïda has an estimated 12,566 trees across the 12.57 km² measured — 4.0% tree cover, 26 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Saïda need?
Saïda needs roughly 81,681 more trees to close a 26-point shortfall against its 30% tree-cover target — about 1,797 t of extra CO₂ absorbed per year once grown.
How are Saïda's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Saïda; the tree count is an estimate derived from that cover.
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