What is the air quality trend in Horizon Hills?

Over the past 7 days, Horizon Hills had an average AQI of 185 based on station measurements. The worst day was 2026-10-15 with AQI 215.

How is Horizon Hills air quality measured?

Air quality in Horizon Hills 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 Horizon Hills, Malaysia

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

Historical PM2.5 and AQI trend from monitoring stations near Horizon Hills, Malaysia.

112

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	160	154–174	73.3 µg/m³	81.3	23h	5
2026-10-19	159	131–171	74.8 µg/m³	82.5	24h	5
2026-10-18	157	131–192	70.1 µg/m³	78.8	24h	4
2026-10-17	199	181–249	141.3 µg/m³	161.6	24h	4
2026-10-16	197	178–237	138.3 µg/m³	156.7	24h	3
2026-10-15	215	190–261	162.4 µg/m³	184.4	24h	4
2026-10-14	212	173–305	149.0 µg/m³	170.5	24h	4

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