City report · Calabarzon, Philippines
Santa Rosa Air quality today
Air quality in Santa Rosa currently reads AQI 9 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 9
Good
- PM2.5, fine particles (µg/m³)
- 1.6
- tree cover
- 31.0%
- trees in this area
- 85.8K
- more trees needed
- 0
Measured across a 2 km radius around Kanluran, City of Santa Rosa, Laguna, Philippines (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Santa Rosa · AQI 9 (Good)
Santa Rosa's tree count comes to 85,800 trees across 11.07 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Santa Rosa today: AQI 9, Good
Main pollutant: PM2.5 · Observed Nov 11, 23:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · DLSU Laguna, 9.2 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
1.6
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, DLSU
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Santa Rosa's daily AQI at 31 on average, from 18 on Nov 9 to an hourly peak of 55 on Nov 10.
Where Santa Rosa stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Santa Rosa: Healthy tree cover
31.0% tree cover against a 30% healthy-neighborhood target, across 11.07 km² of land.
Trees in this area
85,800
Target trees
85,800
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Santa Rosa lost?
Since 2001, the area within 10 km of Santa Rosa has lost about 83 hectares of forest (about 120 football pitches): 6.3% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from May 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 83 haabout 120 football pitches
- Share of its forest
- 6.3%of what there was in 2000
- Cleared for good
- 76 hadeforestation: turned into farms, mines or towns
The worst year was 2007, when about 12 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 | 5 ha | 2 ha | 6 ha |
| 2002 | 4 ha | under 1 ha | 4 ha |
| 2003 | 2 ha | under 1 ha | 3 ha |
| 2004 | 6 ha | under 1 ha | 6 ha |
| 2005 | 3 ha | under 1 ha | 3 ha |
| 2006 | 6 ha | under 1 ha | 6 ha |
| 2007 | 12 ha | under 1 ha | 12 ha |
| 2008 | 3 ha | under 1 ha | 3 ha |
| 2009 | 5 ha | under 1 ha | 6 ha |
| 2010 | 8 ha | under 1 ha | 9 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | 7 ha | under 1 ha | 8 ha |
| 2013 | 2 ha | under 1 ha | 2 ha |
| 2014 | 3 ha | under 1 ha | 3 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 2 ha | under 1 ha | 2 ha |
| 2017 | 1 ha | under 1 ha | 1 ha |
| 2018 | 1 ha | under 1 ha | 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 | under 1 ha | under 1 ha |
| 2022 | 1 ha | under 1 ha | 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | 2 ha | under 1 ha | 2 ha |
| 2025 | 2 ha | under 1 ha | 2 ha |
What is causing deforestation around Santa Rosa?
- Towns and roadscleared for good87% · 72 ha
- Farms, pasture and plantationscleared for good5.1% · 4 ha
- Unknown causescause unknown7.8% · 7 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
- 2,930 ha
- Forest in 2020
- 3,020 ha
- Overall change
- +87 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Santa Rosa grew from about 2,930 hectares to 3,020 hectares, a net gain of about 87 hectares (+3%). New forest grew on about 209 hectares, while 121 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 Santa Rosa
Same 2 km radius, same index — so they compare directly.
- Calamba12.6 km
Philippines
- Tree cover
- 41%
- Air quality
- 9
- Silang18.5 km
Philippines
- Tree cover
- 62%
- Air quality
- 9
- Dasmariñas18.9 km
Philippines
- Tree cover
- 42%
- Air quality
- 36
- Binangonan19.1 km
Philippines
- Tree cover
- 53%
- Air quality
- 48
- Los Baños21.1 km
Philippines
- Tree cover
- 66%
- Air quality
- 9
- Paranaque City21.4 km
Philippines
- Tree cover
- 20%
- Air quality
- 49
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Frequently asked
Questions about Santa Rosa
What is the air quality (AQI) in Santa Rosa right now?
The latest reading for Santa Rosa shows an AQI of 9 (Good), measured Nov 11, 23:00 local time by the DLSU Laguna ground monitoring station, 9.2 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Santa Rosa today?
At AQI 9 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Santa Rosa been like this week?
Over the last 7 days, the CAMS air-quality model put Santa Rosa's daily AQI at 31 on average, from 18 on Nov 9 to an hourly peak of 55 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 Santa Rosa lost since 2001?
Since 2001, the area within 10 km of Santa Rosa has lost about 83 hectares of forest (about 120 football pitches): 6.3% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Santa Rosa grew from about 2,930 hectares to 3,020 hectares, a net gain of about 87 hectares (+3%). New forest grew on about 209 hectares, while 121 hectares were lost.
What is the tree count in Santa Rosa?
Santa Rosa has an estimated 85,800 trees across the 11.07 km² of land measured — 31.0% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Santa Rosa need?
Santa Rosa has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Santa Rosa's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Kanluran, 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 Kanluran; the tree count is an estimate derived from that cover.
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