What is the air quality trend in Pontian Besar?

Over the past 7 days, Pontian Besar had an average AQI of 148 based on station measurements. The worst day was 2026-10-14 with AQI 171.

How is Pontian Besar air quality measured?

Air quality in Pontian Besar 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 Pontian Besar, Malaysia

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

Historical PM2.5 and AQI trend from monitoring stations near Pontian Besar, Malaysia.

112

Current AQI
Unhealthy for sensitive groups CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 7 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-20	132	90–165	52.1 µg/m³	80.4	21h	6
2026-10-19	127	94–164	47.4 µg/m³	80.4	24h	6
2026-10-18	113	78–166	41.6 µg/m³	79.3	24h	6
2026-10-17	168	134–214	88.9 µg/m³	172.4	24h	5
2026-10-16	159	91–182	75.0 µg/m³	161.2	24h	4
2026-10-15	168	134–192	89.7 µg/m³	187.9	24h	4
2026-10-14	171	100–247	94.0 µg/m³	184.2	24h	5

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