What is the air quality trend in Bishan?

Over the past 14 days, Bishan had an average AQI of 57 based on station measurements. The worst day was 2026-09-05 with AQI 74.

How is Bishan air quality measured?

Air quality in Bishan 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 Bishan, China

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

Historical PM2.5 and AQI trend from monitoring stations near Bishan, China.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

318h

PM2.5 Station

318h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	74	48–138	23.0 µg/m³	21h	4
2026-09-04	64	36–112	18.5 µg/m³	23h	4
2026-09-03	61	24–87	17.6 µg/m³	24h	4
2026-09-02	57	35–94	16.0 µg/m³	22h	4
2026-09-01	40	14–91	10.6 µg/m³	23h	3
2026-08-31	53	31–79	14.0 µg/m³	23h	4
2026-08-30	64	34–106	18.7 µg/m³	22h	4
2026-08-29	66	40–157	19.8 µg/m³	21h	3
2026-08-28	56	27–105	15.9 µg/m³	24h	4
2026-08-27	51	17–72	13.4 µg/m³	24h	3
2026-08-26	58	39–85	16.0 µg/m³	22h	3
2026-08-25	48	14–90	12.8 µg/m³	23h	4
2026-08-24	62	22–114	17.9 µg/m³	24h	4
2026-08-23	49	25–85	13.4 µg/m³	22h	3

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