What is the air quality trend in Katihar?

Over the past 15 days, Katihar had an average AQI of 84 based on station measurements. The worst day was 2026-09-05 with AQI 103.

How is Katihar air quality measured?

Air quality in Katihar 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 Katihar, India

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

323h

PM2.5 Station

323h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	103	98–108	36.3 µg/m³	15h	3
2026-09-04	81	71–97	26.5 µg/m³	24h	3
2026-09-03	72	69–78	21.9 µg/m³	24h	3
2026-09-02	68	65–70	20.1 µg/m³	23h	3
2026-09-01	70	68–72	20.9 µg/m³	19h	3
2026-08-31	73	72–77	22.6 µg/m³	24h	3
2026-08-30	83	77–87	27.5 µg/m³	24h	3
2026-08-29	85	83–89	28.3 µg/m³	24h	3
2026-08-28	84	80–88	27.7 µg/m³	24h	3
2026-08-27	89	84–95	30.3 µg/m³	23h	3
2026-08-26	90	86–95	30.7 µg/m³	24h	3
2026-08-25	79	77–85	25.6 µg/m³	21h	3
2026-08-24	86	77–94	28.8 µg/m³	24h	3
2026-08-23	99	93–106	34.7 µg/m³	24h	3
2026-08-22	98	97–99	34.5 µg/m³	6h	2

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