What is the air quality trend in Koch Bihār?

Over the past 7 days, Koch Bihār had an average AQI of 140 based on station measurements. The worst day was 2026-10-19 with AQI 160.

How is Koch Bihār air quality measured?

Air quality in Koch Bihār 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 Koch Bihār, India

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

Historical PM2.5 and AQI trend from monitoring stations near Koch Bihār, India.

129

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

27h

PM2.5 Station

27h · 1 station

Temperature GFS model

27pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	135	133–138	49.5 µg/m³	3h	5
2026-10-20	142	137–144	52.2 µg/m³	7h	7
2026-10-19	160	160–160	73.2 µg/m³	1h	1
2026-10-18	136	83–146	49.8 µg/m³	8h	5
2026-10-17	146	139–156	55.4 µg/m³	6h	4
2026-10-16	153	153–153	60.1 µg/m³	1h	1
2026-10-15	110	110–110	39.1 µg/m³	1h	7

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