Philippines Air Quality Index (AQI)
The Philippines' air quality challenge is driven by an aging diesel vehicle fleet dominated by jeepneys and tricycles, plus industrial growth and open waste burning. Metro Manila's 14.8 million residents breathe air where the transport sector contributes over 60% of PM2.5. About 88% of Filipinos live in air exceeding WHO annual guidelines.
Most Polluted Cities
- Quezon CityAQI 122
- ManilaAQI 118
- Cebu CityAQI 92
Cleanest Cities
- Davao CityAQI 78
- Cebu CityAQI 92
NCR (Metro Manila) — Air Quality
Manila
Luzon · Pop. 14.8M
Metro Manila's 14.8 million residents share the road with an aging fleet of diesel jeepneys and tricycles. The transport sector accounts for over 60% of PM2.5 in the metro. DENR's Unified Vehicular Volume Reduction Program (UVVRP) — the number-coding scheme — provides only marginal relief. Dry season temperature inversions trap pollution in the Luzon basin.
Quezon City
Luzon · Pop. 3M
The most populous city in the Philippines and part of Metro Manila's contiguous urban area. Quezon City's rapid vertical construction boom generates substantial construction dust. The EDSA highway corridor — one of Asia's busiest urban roads — runs through the city carrying over 300,000 vehicles daily.
Central Visayas — Air Quality
Cebu City
Cebu · Pop. 1M
Philippines' second-largest city and main port of the Visayas. Shipping emissions from Cebu's busy international container port and older vehicle fleets drive air quality issues. Surrounded by water on three sides, sea breezes provide seasonal relief compared to landlocked Manila.
Davao Region — Air Quality
Davao City
Mindanao · Pop. 1.8M
Mindanao's largest city and known as one of the safer, better-governed cities in the Philippines. Davao benefits from prevailing winds off the Davao Gulf and lower industrial density than Metro Manila. Agribusiness — banana plantations, durian farming — contributes some pesticide and biomass burning emissions.
The Jeepney Problem: Icons vs. Air Quality
The iconic Filipino jeepney is a cultural symbol — but the 66,000 aging diesel units in Metro Manila are a major pollution source. Most run on Euro 2 or older engines (EU phased out Euro 2 in 2005), emitting far more PM2.5, NOx, and black carbon than modern vehicles.
- Transport sector contributes ~60% of Metro Manila's PM2.5 pollution (DENR)
- LTFRB's jeepney modernization program targets replacement of pre-Euro 4 units
- Public opposition: jeepney drivers protesting phaseout as livelihood threat
- Electric jeepney (e-jeepney) deployment underway but still a fraction of total fleet
- Tricycles (3-wheelers) number over 3.5 million nationwide — largely unregulated
Philippines Seasonal Air Quality Guide
Wet Season (Jun–Nov)
BestSouthwest monsoon rains wash out urban pollution. Best air quality of the year. Typhoon season brings strong winds that disperse smog but also carry sea spray.
Cool Dry Season (Dec–Feb)
ModerateNortheast trade winds bring cooler air from Asia. Temperature inversions rare. AQI moderate in most cities. Tourist season — pleasant overall.
Hot Dry Season (Mar–May)
WorstPeak heat + low winds = maximum pollution trapping. Temperature inversions lock urban smog over Metro Manila. Biomass burning season in Visayas and Mindanao.
Health Advisory for Philippines
Wear N95 masks during hot dry season (March–May). Take breaks in shaded, ventilated areas. Check daily AQI before shifts.
Metro Manila air quality is worst Mar–May. Visit Nov–Feb for cooler, cleaner air. Palawan and Batanes consistently have better AQI than Manila.
Keep indoors on high-AQI days. Run air purifiers if available. Avoid main roads (EDSA, Commonwealth Ave) during rush hours.
Philippines has high asthma prevalence (~7% of population). Stock rescue inhalers. Track PAG-ASA weather and DENR EMB air quality bulletins.