What is the air quality trend in Bihārīganj?

Over the past 21 days, Bihārīganj had an average AQI of 77 based on station measurements. The worst day was 2026-05-23 with AQI 109.

How is Bihārīganj air quality measured?

Air quality in Bihārīganj 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 Bihārīganj, India

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

379h

PM2.5 Station

379h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	61	48–80	17.0 µg/m³	3h	2
2026-05-29	53	10–136	15.5 µg/m³	15h	1
2026-05-28	73	6–180	29.7 µg/m³	17h	1
2026-05-27	90	31–167	32.5 µg/m³	18h	2
2026-05-26	73	2–171	25.4 µg/m³	19h	2
2026-05-25	86	15–246	37.0 µg/m³	17h	2
2026-05-24	83	3–265	35.8 µg/m³	19h	2
2026-05-23	109	2–493	58.7 µg/m³	17h	1
2026-05-22	86	18–159	30.1 µg/m³	22h	2
2026-05-21	80	11–173	29.2 µg/m³	22h	2
2026-05-20	72	3–181	25.9 µg/m³	20h	2
2026-05-19	76	15–189	28.9 µg/m³	19h	2
2026-05-18	69	5–170	23.8 µg/m³	19h	2
2026-05-17	59	13–149	17.3 µg/m³	20h	2
2026-05-16	84	20–165	29.7 µg/m³	16h	2
2026-05-15	87	4–171	31.0 µg/m³	22h	2
2026-05-14	58	9–114	17.5 µg/m³	22h	2
2026-05-13	98	9–222	38.5 µg/m³	21h	2
2026-05-12	76	30–151	24.9 µg/m³	19h	2
2026-05-11	84	23–212	33.3 µg/m³	19h	2
2026-05-10	63	9–151	20.0 µg/m³	13h	1

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