What is the air quality trend in Sītāmarhi?

Over the past 7 days, Sītāmarhi had an average AQI of 75 based on station measurements. The worst day was 2026-07-15 with AQI 103.

How is Sītāmarhi air quality measured?

Air quality in Sītāmarhi 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 Sītāmarhi, India

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	54	4–100	16.3 µg/m³	21.7	23h	2
2026-07-20	74	47–94	22.9 µg/m³	35.1	24h	2
2026-07-19	55	4–106	16.9 µg/m³	24.4	23h	2
2026-07-18	66	7–117	21.2 µg/m³	28.6	24h	2
2026-07-17	76	8–130	24.4 µg/m³	35.1	24h	2
2026-07-16	98	61–151	33.4 µg/m³	42.5	24h	3
2026-07-15	103	65–155	36.0 µg/m³	45.6	24h	3

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