City report · Central Luzon, Philippines
Calumpit Air quality today
Air quality in Calumpit currently reads AQI 33 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 33
Good
- PM2.5, fine particles (µg/m³)
- 6.0
- tree cover
- 38.7%
- trees in this area
- 92.9K
- more trees needed
- 0
Measured across a 2 km radius around Balungao, Calumpit, Bulacan, Philippines (12.57 km²), from a satellite image of Sep 13, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Calumpit · AQI 33 (Good)
Calumpit's tree count comes to 92,887 trees across 9.6 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Calumpit today: AQI 33, Good
Main pollutant: PM2.5 · Observed Nov 11, 23:53 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Quezon Road , 9.4 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.0
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · Clarity
- 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 Calumpit's daily AQI at 42 on average, from 31 on Nov 9 to an hourly peak of 62 on Nov 6.
Where Calumpit stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Calumpit: Healthy tree cover
38.7% tree cover against a 30% healthy-neighborhood target, across 9.6 km² of land.
Trees in this area
92,887
Target trees
92,887
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Calumpit lost?
Since 2001, the area within 10 km of Calumpit has lost about 289 hectares of forest (about 400 football pitches): 4.8% of the forest it had in 2000. Most of it (87%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from April 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 289 haabout 400 football pitches
- Share of its forest
- 4.8%of what there was in 2000
- Cleared for good
- 252 hadeforestation: turned into farms, mines or towns
The worst year was 2002, when about 37 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 | 17 ha | 4 ha | 21 ha |
| 2002 | 30 ha | 6 ha | 37 ha |
| 2003 | 16 ha | 3 ha | 19 ha |
| 2004 | 14 ha | 2 ha | 16 ha |
| 2005 | 27 ha | 3 ha | 31 ha |
| 2006 | 25 ha | 4 ha | 29 ha |
| 2007 | 19 ha | 2 ha | 21 ha |
| 2008 | 6 ha | under 1 ha | 6 ha |
| 2009 | 15 ha | 4 ha | 19 ha |
| 2010 | 24 ha | 2 ha | 26 ha |
| 2011 | 1 ha | under 1 ha | 1 ha |
| 2012 | 14 ha | 2 ha | 16 ha |
| 2013 | 1 ha | under 1 ha | 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | 3 ha | under 1 ha | 3 ha |
| 2016 | 5 ha | under 1 ha | 5 ha |
| 2017 | 5 ha | 1 ha | 6 ha |
| 2018 | 2 ha | under 1 ha | 2 ha |
| 2019 | 1 ha | under 1 ha | 1 ha |
| 2020 | 9 ha | under 1 ha | 9 ha |
| 2021 | 10 ha | under 1 ha | 10 ha |
| 2022 | 2 ha | under 1 ha | 2 ha |
| 2023 | 2 ha | under 1 ha | 2 ha |
| 2024 | 3 ha | under 1 ha | 3 ha |
| 2025 | 1 ha | under 1 ha | 2 ha |
What is causing deforestation around Calumpit?
- Farms, pasture and plantationscleared for good60% · 174 ha
- Towns and roadscleared for good27% · 78 ha
- Storms, floods and other natural causescan grow back5.7% · 16 ha
Also: unknown causes.
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
- 1,330 ha
- Forest in 2020
- 1,320 ha
- Overall change
- −14 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Calumpit stayed about the same size, at about 1,320 hectares: new forest grew on about 86 hectares, and about 101 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 Calumpit
Same 2 km radius, same index — so they compare directly.
- Baliuag14.7 km
Philippines
- Tree cover
- 42%
- Air quality
- 33
- San Fernando15.8 km
Philippines
- Tree cover
- 37%
- Air quality
- 33
- Pandi21.3 km
Philippines
- Tree cover
- 42%
- Air quality
- 93
- Norzagaray30.5 km
Philippines
- Tree cover
- 71%
- Air quality
- 92
- San Jose del Monte32.1 km
Philippines
- Tree cover
- 54%
- Air quality
- 90
- Valenzuela32.3 km
Philippines
- Tree cover
- 14%
- Air quality
- 91
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Frequently asked
Questions about Calumpit
What is the air quality (AQI) in Calumpit right now?
The latest reading for Calumpit shows an AQI of 33 (Good), measured Nov 11, 23:53 local time by the Quezon Road ground monitoring station, 9.4 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Calumpit today?
At AQI 33 (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 Calumpit been like this week?
Over the last 7 days, the CAMS air-quality model put Calumpit's daily AQI at 42 on average, from 31 on Nov 9 to an hourly peak of 62 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Calumpit lost since 2001?
Since 2001, the area within 10 km of Calumpit has lost about 289 hectares of forest (about 400 football pitches): 4.8% of the forest it had in 2000. Most of it (87%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Calumpit stayed about the same size, at about 1,320 hectares: new forest grew on about 86 hectares, and about 101 hectares were lost.
What is the tree count in Calumpit?
Calumpit has an estimated 92,887 trees across the 9.6 km² of land measured — 38.7% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Calumpit need?
Calumpit has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Calumpit's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Balungao, 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 Balungao; the tree count is an estimate derived from that cover.
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