City report · Western Visayas, Philippines
Bacolod City Air quality today
Air quality in Bacolod City currently reads AQI 33 (Good): Air quality is satisfactory for everyone.
AQI 33
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 5.9
- tree cover
- 22.8%
- trees in this area
- 66.0K
- more trees needed
- 20.9K
Measured across a 2 km radius around Barangay 25, Bacolod, 6100 Negros Occidental, Philippines (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Bacolod City · AQI 33 (Good)
Bacolod City's tree count comes to 66,041 trees across 11.59 km² of land, 7 points below the 30% tree-cover level considered healthy for this area, so roughly 20,855 more trees would close the gap.
Air quality detail
Air quality in Bacolod City today: AQI 33, Good
Main pollutant: PM2.5 · Observed Nov 12, 02:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Bacolod City San Juan-Gonzaga Sts, 600 m away · median of 2 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.9
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, Bacolod City
- 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 Bacolod City's daily AQI at 22 on average, from 20 on Nov 11 to an hourly peak of 36 on Nov 8.
Where Bacolod City stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Bacolod City: Below target
22.8% tree cover against a 30% healthy-neighborhood target, across 11.59 km² of land.
Trees in this area
66,041
Target trees
86,896
More trees needed
20,855
CO₂ if planted / yr
458.8 t
Deforestation · 2001–2025
How much forest has Bacolod City lost?
Since 2001, the area within 10 km of Bacolod City has lost about 52 hectares of forest (about 73 football pitches): 5% of the forest it had in 2000. Most of it (79%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from April 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 52 haabout 73 football pitches
- Share of its forest
- 5%of what there was in 2000
- Cleared for good
- 41 hadeforestation: turned into farms, mines or towns
The worst year was 2010, when about 6 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 | 3 ha | 1 ha | 4 ha |
| 2002 | 4 ha | 2 ha | 6 ha |
| 2003 | 5 ha | under 1 ha | 5 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | 3 ha | 2 ha | 5 ha |
| 2006 | 3 ha | under 1 ha | 4 ha |
| 2007 | 4 ha | under 1 ha | 5 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | 5 ha | 1 ha | 6 ha |
| 2010 | 5 ha | 1 ha | 6 ha |
| 2011 | 2 ha | under 1 ha | 2 ha |
| 2012 | 1 ha | under 1 ha | 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | 1 ha | under 1 ha | 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 | 2 ha | under 1 ha | 2 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | 1 ha | under 1 ha | 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Bacolod City?
- Towns and roadscleared for good54% · 28 ha
- Farms, pasture and plantationscleared for good25% · 13 ha
- Unknown causescause unknown20% · 10 ha
Also: logging.
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
- 4,460 ha
- Forest in 2020
- 4,700 ha
- Overall change
- +238 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Bacolod City grew from about 4,460 hectares to 4,700 hectares, a net gain of about 238 hectares (+5.3%). New forest grew on about 310 hectares, while 72 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 Bacolod City
Same 2 km radius, same index — so they compare directly.
- Bago City19.6 km
Philippines
- Tree cover
- 65%
- Air quality
- 38
- Iloilo42.3 km
Philippines
- Tree cover
- 27%
- Air quality
- 22
- Cadiz48.3 km
Philippines
- Tree cover
- 29%
- Air quality
- 49
- Himamaylan63.7 km
Philippines
- Tree cover
- 65%
- Air quality
- 32
- Kabankalan77.4 km
Philippines
- Tree cover
- 28%
- Air quality
- 52
- Toledo81.9 km
Philippines
- Tree cover
- 64%
- Air quality
- 17
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Frequently asked
Questions about Bacolod City
What is the air quality (AQI) in Bacolod City right now?
The latest reading for Bacolod City shows an AQI of 33 (Good), measured Nov 12, 02:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Bacolod City San Juan-Gonzaga Sts, 600 m away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Bacolod City 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 Bacolod City been like this week?
Over the last 7 days, the CAMS air-quality model put Bacolod City's daily AQI at 22 on average, from 20 on Nov 11 to an hourly peak of 36 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Bacolod City lost since 2001?
Since 2001, the area within 10 km of Bacolod City has lost about 52 hectares of forest (about 73 football pitches): 5% of the forest it had in 2000. Most of it (79%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Bacolod City grew from about 4,460 hectares to 4,700 hectares, a net gain of about 238 hectares (+5.3%). New forest grew on about 310 hectares, while 72 hectares were lost.
What is the tree count in Bacolod City?
Bacolod City has an estimated 66,041 trees across the 11.59 km² of land measured — 22.8% tree cover, 7 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Bacolod City need?
Bacolod City needs roughly 20,855 more trees to close a 7-point shortfall against its 30% tree-cover target — about 458.8 t of extra CO₂ absorbed per year once grown.
How are Bacolod City's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Barangay 25, 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 Barangay 25; the tree count is an estimate derived from that cover.
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