Iloilo vs San Fernando AQI Comparison

Side-by-side OpenAQ-derived air quality comparison for Iloilo and San Fernando. Values use mapped daily PM2.5 and PM10 observations normalized to US EPA AQI.

Lower average AQI: San Fernando (4-pt gap)PM2.5: Iloilo 21.0 ug/m3 · San Fernando 19.0 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2024-06-05–2024-12-31 and 2024-08-13–2024-11-28.

Compare two cities

City A

City B

Iloilo vs San Fernando

Iloilo

Iloilo, Philippines

PM2.5: 21.0 ug/m3
PM10: 23.2 ug/m3
Worst month: November
Trend: n/a

EPA category: Moderate

San Fernando

Pampanga, Philippines

PM2.5: 19.0 ug/m3
PM10: n/a ug/m3
Worst month: August
Trend: n/a

EPA category: Moderate

Lower average AQI in this selected period: San Fernando. Values are historical OpenAQ-derived city summaries, not live readings.

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Iloilo

San Fernando

What this comparison measures

Average EPA AQI — city-level daily AQI values averaged across the OpenAQ coverage window.
PM2.5 and PM10 — mapped monitor concentrations aggregated to daily city averages.
Seasonality — worst and cleanest months from the monthly city rollups.
Trend — difference between the earliest and latest yearly AQI average in this build.