What is the air quality trend in Calauan?

Over the past 8 days, Calauan had an average AQI of 58 based on station measurements. The worst day was 2026-10-21 with AQI 79.

How is Calauan air quality measured?

Air quality in Calauan is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Calauan, Philippines

Name: Calauan Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Calauan, Philippines.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

160h

PM2.5 Station

160h · 27 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	79	68–86	25.2 µg/m³	5h	27
2026-10-20	54	33–73	14.2 µg/m³	21h	27
2026-10-19	54	38–69	14.0 µg/m³	24h	27
2026-10-18	49	25–68	12.5 µg/m³	23h	26
2026-10-17	50	25–70	13.2 µg/m³	24h	28
2026-10-16	52	30–69	13.8 µg/m³	23h	28
2026-10-15	58	34–85	15.8 µg/m³	24h	28
2026-10-14	69	52–88	20.8 µg/m³	16h	28

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