What is the air quality trend in Biratnagar?

Over the past 15 days, Biratnagar had an average AQI of 81 based on station measurements. The worst day was 2026-10-21 with AQI 128.

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.

168

Current AQI
Unhealthy CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

176h

PM2.5 Station

176h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	128	128–128	46.3 µg/m³	1h	2
2026-10-20	81	33–156	27.2 µg/m³	11h	1
2026-10-19	99	3–192	44.0 µg/m³	16h	1
2026-10-18	96	30–301	43.4 µg/m³	12h	1
2026-10-17	94	12–272	44.3 µg/m³	15h	1
2026-10-16	98	30–175	39.0 µg/m³	11h	1
2026-10-15	78	24–165	26.8 µg/m³	14h	1
2026-10-14	78	43–152	25.2 µg/m³	8h	1
2026-10-13	105	55–181	42.4 µg/m³	12h	1
2026-10-12	70	19–174	24.8 µg/m³	12h	1
2026-10-11	59	13–87	16.9 µg/m³	8h	1
2026-10-10	91	22–183	35.1 µg/m³	11h	1
2026-10-09	87	10–171	33.3 µg/m³	11h	1
2026-10-08	32	21–50	7.8 µg/m³	21h	1
2026-10-07	23	8–42	5.6 µg/m³	13h	1

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