What is the air quality trend in Biratnagar?

Over the past 8 days, Biratnagar had an average AQI of 97 based on station measurements. The worst day was 2026-10-20 with AQI 116.

How is Biratnagar air quality measured?

Air quality in Biratnagar 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 Biratnagar, Nepal

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

Historical PM2.5 and AQI trend from monitoring stations near Biratnagar, Nepal.

151

Current AQI
Unhealthy CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

121h

PM2.5 Station

121h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	102	83–120	35.5 µg/m³	3h	1
2026-10-20	116	49–500	62.0 µg/m³	19h	1
2026-10-19	93	3–192	35.9 µg/m³	20h	1
2026-10-18	111	34–500	87.5 µg/m³	17h	1
2026-10-17	78	37–166	26.1 µg/m³	16h	1
2026-10-16	80	22–190	32.9 µg/m³	15h	1
2026-10-15	98	53–260	41.2 µg/m³	18h	1
2026-10-14	104	42–175	42.0 µg/m³	13h	1

Back to Biratnagar Air Quality