What is the air quality trend in Yan Besar?

Over the past 15 days, Yan Besar had an average AQI of 74 based on station measurements. The worst day was 2026-08-30 with AQI 90.

How is Yan Besar air quality measured?

Air quality in Yan 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 Yan Besar, Malaysia

Name: Yan 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 Yan Besar, Malaysia.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

332h

PM2.5 Station

332h · 10 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	82	42–164	28.9 µg/m³	12h	7
2026-09-04	59	17–121	17.4 µg/m³	24h	6
2026-09-03	67	20–159	20.8 µg/m³	24h	7
2026-09-02	76	55–177	25.5 µg/m³	24h	5
2026-09-01	79	44–162	25.9 µg/m³	24h	6
2026-08-31	79	42–160	25.6 µg/m³	24h	6
2026-08-30	90	58–188	32.3 µg/m³	24h	6
2026-08-29	85	41–157	28.4 µg/m³	24h	6
2026-08-28	81	57–134	26.2 µg/m³	24h	6
2026-08-27	78	42–177	26.8 µg/m³	24h	6
2026-08-26	66	21–135	19.9 µg/m³	24h	4
2026-08-25	71	26–127	22.2 µg/m³	24h	5
2026-08-24	77	18–148	24.6 µg/m³	23h	5
2026-08-23	71	20–111	22.0 µg/m³	24h	5
2026-08-22	57	25–84	16.5 µg/m³	9h	3

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