Air quality comparison · Philippines, 25 km apart
Iligan vs Marawi City Air quality index (AQI) today
Marawi City has cleaner air than Iligan right now: AQI 19 (Good) against 52 (Moderate).
That puts them in different EPA bands, so the health advice differs today. Over the past 7 days, on modeled daily averages, Marawi City averaged AQI 24 against 34, and it was the cleaner of the two on 7 of those days. Marawi City has lost more forest since 2001. Marawi City has more tree cover.
Philippines
AQI 52
Moderate
Cleaner right now
- PM2.5
- 10.4 µg/m³
- Main pollutant
- PM2.5
- Source
- Model estimate
- Reading
- Nov 11, 01:00 local
Philippines
AQI 19
Good
Cleaner right now
- PM2.5
- 3.3 µg/m³
- Main pollutant
- PM2.5
- Source
- Model estimate
- Reading
- Nov 11, 12:00 local
Updated . Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf.
Iligan52Marawi City19
Head to head
Iligan vs Marawi City at a glance
Marawi City is ahead on 4 of 6 measures, and Iligan on 1. The better figure in each row is marked.
| Iligan | Marawi City | |
|---|---|---|
| Air quality nowUS AQI. Lower is better. | 52 | 19 (better) |
| PM2.5Fine particles, µg/m³. | 10.4 | 3.3 (better) |
| Past week's averageUS AQI, 7 days. | 34 | 24 (better) |
| Forest lost since 2001Within 10 km of the center. | 526 ha (better) | 545 ha |
| Tree coverWithin 2 km of the center. | 34.8% | 39.7% (better) |
| Trees still neededTo reach a healthy canopy. | 0 | 0 |
Air quality today
What is the air like in Iligan and Marawi City right now?
Marawi City has cleaner air than Iligan right now: AQI 19 (Good) against 52 (Moderate). PM2.5 is setting the index in both.
Both readings are model estimates, with no ground station close enough to either.
IliganMarawi City
Concentrations at the same moment as the index above, for the pollutants both places report. Lower is better. The dark marks on the PM2.5 and PM10 rows show the WHO's 24-hour guidelines (15 and 45 µg/m³).
Iligan: Estimate · model corrected with 2 station cities within 245 km, e.g. Talisay and Cebu City. Data: Open-Meteo / CAMS, corrected with 2 ground-station cities within 245 km, US EPA index.
Marawi City: Model estimate · no ground station nearby. Data: Open-Meteo / CAMS, US EPA index.
The past week
Which had cleaner air over the past 7 days?
Over the past 7 days, on modeled daily averages, Marawi City averaged AQI 24 against 34, and it was the cleaner of the two on 7 of those days. A single reading can catch a city on a bad afternoon; the week says whether it was the weather or the place.
- Cleaner days
- Iligan0Marawi City7
- Average AQI
- Iligan34Marawi City24
- Worst day, AQI
- Iligan45Marawi City35
The daily numbers (7 days)
| Day | Iligan | Marawi City |
|---|---|---|
| Nov 5 | 40 | 32 |
| Nov 6 | 42 | 35 |
| Nov 7 | 32 | 25 |
| Nov 8 | 24 | 19 |
| Nov 9 | 29 | 20 |
| Nov 10 | 23 | 21 |
| Nov 11 | 45 | 18 |
Daily averages from the CAMS atmospheric model for both places, so the week compares like with like. They can differ from today's reading at the top of the page wherever that comes from a ground station.
What it means today
Is it safe to go outside in Iligan and Marawi City today?
Iligan (AQI 52, Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Marawi City (AQI 19, Good): Air quality is satisfactory for everyone.
Exercise outdoors
- Iligan
- Fine for most people; unusually sensitive people should take long or hard exercise easier.
- Marawi City
- A good day to be active outside.
Windows
- Iligan
- Fine to open; close them if you are sensitive to pollution.
- Marawi City
- Open them to air the house.
Masks
- Iligan
- Not needed for most people.
- Marawi City
- Not needed.
Air purifier
- Iligan
- Worth running if you are sensitive.
- Marawi City
- Not needed.
Against everywhere else
How do Iligan and Marawi City compare with the rest of the world?
Right now Iligan's air is cleaner than 58% of the 5,420 places Airleaf tracks, and Marawi City's is cleaner than 90%. Within Philippines, that is 41% and 75% of its 100 measured places.
Cleaner air than…
- Iligan
- Beats 58%
- Marawi City
- Beats 90%
More tree cover than…
- Iligan
- Beats 77%
- Marawi City
- Beats 83%
Includes model estimates as well as station readings, so it can differ from our most polluted and cleanest air rankings, which use station readings only.
Deforestation · 2001–2025
Which has lost more forest, Iligan or Marawi City?
Marawi City has lost more: about 545 ha of forest within 10 km of its center from 2001 to 2025, against 526 ha around Iligan. 448 ha of that was cleared for good, for farms, mines or towns.
Measured within 10 km of each center, from the yearly satellite maps of forest loss: a wider circle than the one for tree cover, because forest is usually lost at a city's edges.
Worst year: 2016, with 51 ha lost.
Worst year: 2016, with 114 ha lost.
| Iligan | Marawi City | |
|---|---|---|
| Forest lost since 2001Cleared, burned or logged. | 526 ha (better) | 545 ha |
| Share of its forestOf what it had in 2000. | 3.5% (better) | 4.7% |
| Cleared for goodTurned into farms, mines or towns. | 499 ha | 448 ha (better) |
| Recent trend2021–2025 against the five years before. | Too little to call | Too little to call |
| Main known cause | Farms, pasture and plantations (64%) | Farms, pasture and plantations (76%) |
Satellite timelapses
Watch both change, year by year
A clear satellite photo a year of the land around each city. Press play, turn on the forest cleared since the first year, or drag the before and after.
Iligan
2017: satellite photo from May 2017 of a 5 × 5 km area about 7 km northeast of the city center.
Marawi City
2018: satellite photo from February 2018 of a 5 × 5 km area about 7 km northeast of the city center.
Trees
Which has more trees, Iligan or Marawi City?
Marawi City has more tree cover: 39.7% of the land within 2 km of its center against 34.8% around Iligan, or about 109,381 trees against 87,025.
The dark mark is each place's canopy target: 30% of the land, raised where air quality is poor.
| Iligan | Marawi City | |
|---|---|---|
| Trees standingEstimated from the canopy area. | 87.0K | 109K (better) |
| Trees still neededTo reach the target. Fewer is better. | 0 | 0 |
| CO₂ absorbed each yearBy the trees already standing. | 1.9M kg | 2.4M kg (better) |
Tree cover on the satellite image
The same 2 km radius around each center, with the tree cover the satellite found marked on it.
Reading these numbers
How this comparison is made
Air quality index
The US EPA index, computed from current pollutant concentrations: ground stations where a place has them nearby, and the CAMS atmospheric model everywhere else. It moves hour to hour, so it is a snapshot rather than a verdict on either place. The guideline marks are from the WHO's 2021 air quality guidelines.
Trees and forest
Tree cover is the share of ground under canopy within 2 km of each center, read from Sentinel-2 satellite imagery at 10 m detail. It measures that circle, not the whole municipality, which is what makes the two comparable. Forest loss comes from the University of Maryland's Global Forest Change maps.
More on the method on the About Airleaf page.
Frequently asked
Iligan vs Marawi City: your questions answered
Is Marawi City cleaner than Iligan?
On air quality, yes, right now: Marawi City reads AQI 19 against 52, a gap of 33 points on the US EPA index. This is a live reading rather than an annual average, so it can reverse within a day. Over the past 7 days, on modeled daily averages, Marawi City averaged AQI 24 against 34, and it was the cleaner of the two on 7 of those days.
Is it safe to exercise outdoors in Iligan and Marawi City today?
In Iligan, at AQI 52: Unusually sensitive people should consider limiting long outdoor exertion. In Marawi City, at AQI 19: Air quality is satisfactory for everyone.
Which has lost more forest, Iligan or Marawi City?
Marawi City has lost more: about 545 ha of forest within 10 km of its center from 2001 to 2025, against 526 ha around Iligan. 448 ha of that was cleared for good, for farms, mines or towns.
Which has more trees, Iligan or Marawi City?
Marawi City has more tree cover: 39.7% of the land within 2 km of its center against 34.8% around Iligan, or about 109,381 trees against 87,025. Both figures describe the same-sized circle of ground around each center, not the whole municipality.
How many more trees do Iligan and Marawi City need?
Iligan needs about 0 more to reach its canopy target of 30%, and Marawi City about 0 to reach 30%. The target starts at 30% of the land and rises where air quality is poor.
Why can two places 25 km apart read differently?
Air changes over short distances with traffic, industry, wind and hills, and each reading comes from the nearest ground stations or, where there are none, from a regional model. A gap of a few points between neighbors is within normal variation, while a gap that crosses an EPA band is worth noticing.
Are Iligan and Marawi City measured the same way?
The method is the same: the US EPA index for air, and Sentinel-2 satellite imagery at 10 m detail over an identical radius for trees. Both readings are model estimates, with no ground station close enough to either. Nothing is adjusted for population, city limits or climate.
How often does the Iligan vs Marawi City comparison update?
The air readings refresh about once an hour, and each reading's local time is shown at the top of the page. Tree cover comes from the latest clear satellite image of each area (Sep 19, 2026 and Sep 19, 2026), and the forest figures are published yearly.
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