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Airleaf

City report · Bicol Region, Philippines

Naga Air quality today

Air quality in Naga currently reads AQI 63 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.

Air quality right now

AQI 63

Moderate

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
15.3
tree cover
18.2%
trees in this area
56.6K
more trees needed
36.7K

Measured across a 2 km radius around Sabang, Naga City, Camarines Sur, Philippines (12.57 km²), from a satellite image of Sep 15, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 15, 2026

Naga's tree count comes to 56,605 trees across 12.44 km² of land, 12 points below the 30% tree-cover level considered healthy for this area, so roughly 36,700 more trees would close the gap.

Air quality detail

Air quality in Naga today: AQI 63, Moderate

Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 250 km, US EPA index. Values in µg/m³.

Estimate · model corrected with 3 station cities within 250 km, e.g. Binangonan and City of Santa Rosa

Health signal

Unusually sensitive people should consider limiting long outdoor exertion.

PM2.5

15.3

PM10

8.2

NO₂

0.2

O₃

74.0

SO₂

0.3

CO

137.0

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 Naga's daily AQI at 33 on average, from 24 on Nov 11 to an hourly peak of 53 on Nov 5.

Last 7 daysavg 33 · peak 53
Nov 5: AQI 47 (peak 53)Nov 6: AQI 42 (peak 53)Nov 7: AQI 33 (peak 38)Nov 8: AQI 29 (peak 33)Nov 9: AQI 30 (peak 41)Nov 10: AQI 28 (peak 46)Nov 11: AQI 24 (peak 32)
Nov 5Nov 11

Where Naga stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Naga: Below target

18.2% tree cover against a 30% healthy-neighborhood target, across 12.44 km² of land.

12 points below target

Trees in this area

56,605

Target trees

93,305

More trees needed

36,700

CO₂ if planted / yr

807.4 t

Deforestation · 2001–2025

How much forest has Naga lost?

Since 2001, the area within 10 km of Naga has lost about 117 hectares of forest (about 160 football pitches): 2.6% of the forest it had in 2000. Most of it (88%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.

Satellite image of the area around Naga, April 2017

2017: satellite photo from April 2017 of a 5 × 5 km area in the city center.

Forest lost since 2001
117 haabout 160 football pitches
Share of its forest
2.6%of what there was in 2000
Cleared for good
103 hadeforestation: turned into farms, mines or towns

The worst year was 2001, when about 17 hectares of forest were lost.

Forest lost each year around Naga, 2001–2025

Hectares of forest lost each year

Forest lost each year around Naga, 2001–2025. Use the left and right arrow keys to read each year.17

Show the figures as a table
Forest lost each year around Naga, 2001–2025
YearCleared for goodCan grow backTotal
200114 ha3 ha17 ha
20022 haunder 1 ha3 ha
20039 haunder 1 ha10 ha
20042 haunder 1 ha3 ha
20054 haunder 1 ha4 ha
20061 haunder 1 ha2 ha
20077 haunder 1 ha7 ha
20081 haunder 1 ha1 ha
200912 haunder 1 ha12 ha
201011 ha1 ha12 ha
20112 haunder 1 ha2 ha
20126 ha2 ha9 ha
20132 haunder 1 ha2 ha
20145 ha1 ha6 ha
20151 haunder 1 ha1 ha
2016under 1 haunder 1 haunder 1 ha
201715 haunder 1 ha16 ha
20181 haunder 1 ha1 ha
20193 haunder 1 ha3 ha
2020under 1 haunder 1 haunder 1 ha
20212 haunder 1 ha2 ha
2022under 1 haunder 1 haunder 1 ha
2023under 1 haunder 1 haunder 1 ha
20242 haunder 1 ha2 ha
2025under 1 haunder 1 haunder 1 ha

What is causing deforestation around Naga?

  • Farms, pasture and plantationscleared for good69% · 81 ha
  • Towns and roadscleared for good19% · 22 ha
  • Unknown causescause unknown12% · 14 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
4,630 ha
Forest in 2020
4,360 ha
Overall change
−272 haless forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Naga shrank from about 4,630 hectares to 4,360 hectares, a net loss of about 272 hectares (−5.9%). New forest grew on about 42 hectares, but 314 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 Naga

Same 2 km radius, same index — so they compare directly.

  • Iriga City

    Philippines

    32.4 km
    Tree cover
    62%
    Air quality
    27
  • Legaspi

    Philippines

    80.5 km
    Tree cover
    58%
    Air quality
    19
  • Sorsogon

    Philippines

    113.4 km
    Tree cover
    67%
    Air quality
    16
  • Lucena

    Philippines

    172.5 km
    Tree cover
    38%
    Air quality
    84
  • Tayabas

    Philippines

    177.4 km
    Tree cover
    62%
    Air quality
    51
  • Candelaria

    Philippines

    193.0 km
    Tree cover
    54%
    Air quality
    56

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Naga air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Naga

What is the air quality (AQI) in Naga right now?

The latest reading for Naga shows an AQI of 63 (Moderate), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 250 km, 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 Naga today?

At AQI 63 (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 Naga been like this week?

Over the last 7 days, the CAMS air-quality model put Naga's daily AQI at 33 on average, from 24 on Nov 11 to an hourly peak of 53 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around Naga lost since 2001?

Since 2001, the area within 10 km of Naga has lost about 117 hectares of forest (about 160 football pitches): 2.6% of the forest it had in 2000. Most of it (88%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Naga shrank from about 4,630 hectares to 4,360 hectares, a net loss of about 272 hectares (−5.9%). New forest grew on about 42 hectares, but 314 hectares were lost.

What is the tree count in Naga?

Naga has an estimated 56,605 trees across the 12.44 km² of land measured — 18.2% tree cover, 12 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Naga need?

Naga needs roughly 36,700 more trees to close a 12-point shortfall against its 30% tree-cover target — about 807.4 t of extra CO₂ absorbed per year once grown.

How are Naga'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 Sabang; the tree count is an estimate derived from that cover.

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