What is the air quality trend in Petaling Jaya?

Over the past 8 days, Petaling Jaya had an average AQI of 172 based on station measurements. The worst day was 2026-10-19 with AQI 183.

How is Petaling Jaya air quality measured?

Air quality in Petaling Jaya 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 Petaling Jaya, Malaysia

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

Historical PM2.5 and AQI trend from monitoring stations near Petaling Jaya, Malaysia.

117

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 4 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	155	105–173	68.6 µg/m³	79.7	22h	3
2026-10-19	183	154–201	117.1 µg/m³	127.2	24h	3
2026-10-18	170	157–182	92.7 µg/m³	101.5	24h	3
2026-10-17	165	91–193	89.7 µg/m³	99.1	24h	3
2026-10-16	175	158–206	101.6 µg/m³	112.0	24h	3
2026-10-15	180	154–211	110.1 µg/m³	126.8	24h	2
2026-10-14	181	145–237	110.2 µg/m³	128.4	24h	2
2026-10-13	171	171–171	94.9 µg/m³	113.5	1h	3

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