Philippines · Ilocos · 4 cities
Air quality in Ilocos today The AQI right now, city by city
Right now, Dagupan has the cleanest air of the 4 cities we track in Ilocos (AQI 70, Moderate), and Urdaneta the worst (AQI 161, Unhealthy). Bayambang has the most tree cover, at 51.4% — #27 of 99 cities measured in the Philippines.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
Average right now
AQI 88
Moderate
- cities tracked
- 4
- average tree cover
- 41.6%
- Philippines: 40.9%
- worst air now: Urdaneta
- 161
- cleanest air now: Dagupan
- 70
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Ilocos · average AQI 88
Air quality today across Ilocos, city by city
| Dagupan | 70Moderate | 33.4% | — | #65 of 99 |
|---|---|---|---|---|
| Urdaneta | 161Unhealthy | 46.6% | — | #33 of 99 |
| Bayambang | 84Moderate | 51.4% | — | #27 of 99 |
| Laoag | 38Good | 35.2% | — | #61 of 99 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in the Philippines.
Deforestation · 2001–2025
How much forest has Ilocos lost?
Since 2001, Ilocos has lost about 5,490 hectares of forest (about 7,700 football pitches): 2.1% of the forest it had in 2000. Most of it was lost to shifting farming, so much of it can grow back. About 886 hectares (16%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 5,490 haabout 7,700 football pitches
- Share of its forest
- 2.1%of what there was in 2000
- Cleared for good
- 886 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 38 ha | 138 ha | 176 ha |
| 2002 | 52 ha | 167 ha | 219 ha |
| 2003 | 8 ha | 97 ha | 105 ha |
| 2004 | 38 ha | 332 ha | 370 ha |
| 2005 | 52 ha | 260 ha | 312 ha |
| 2006 | 41 ha | 223 ha | 264 ha |
| 2007 | 76 ha | 175 ha | 251 ha |
| 2008 | 37 ha | 86 ha | 123 ha |
| 2009 | 61 ha | 172 ha | 233 ha |
| 2010 | 34 ha | 188 ha | 222 ha |
| 2011 | 14 ha | 88 ha | 102 ha |
| 2012 | 20 ha | 91 ha | 111 ha |
| 2013 | 35 ha | 196 ha | 231 ha |
| 2014 | 61 ha | 200 ha | 261 ha |
| 2015 | 18 ha | 174 ha | 192 ha |
| 2016 | 30 ha | 325 ha | 355 ha |
| 2017 | 35 ha | 348 ha | 383 ha |
| 2018 | 48 ha | 182 ha | 230 ha |
| 2019 | 24 ha | 142 ha | 166 ha |
| 2020 | 8 ha | 151 ha | 159 ha |
| 2021 | 15 ha | 136 ha | 151 ha |
| 2022 | 10 ha | 93 ha | 103 ha |
| 2023 | 57 ha | 249 ha | 306 ha |
| 2024 | 49 ha | 283 ha | 332 ha |
| 2025 | 25 ha | 105 ha | 129 ha |
Forest loss has stayed about the same: about 204 hectares a year in 2021–2025, against 259 hectares a year in 2016–2020. The worst year was 2017, when about 383 hectares of forest were lost.
What is causing deforestation in Ilocos?
- Shifting farmingcan grow back69% · 3,770 ha
- Farms, pasture and plantationscleared for good14% · 776 ha
- Storms, floods and other natural causescan grow back8.4% · 459 ha
Also: mining and energy, logging, towns and roads, wildfires, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. How it's measured
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