What is the air quality trend in Siwān?

Over the past 8 days, Siwān had an average AQI of 70 based on station measurements. The worst day was 2026-05-27 with AQI 95.

How is Siwān air quality measured?

Air quality in Siwān 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 Siwān, India

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

122h

PM2.5 Station

122h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	48	12–110	14.1 µg/m³	8h	1
2026-05-29	63	10–138	20.1 µg/m³	18h	1
2026-05-28	55	11–162	17.7 µg/m³	19h	1
2026-05-27	95	26–170	35.5 µg/m³	13h	1
2026-05-26	94	13–187	40.8 µg/m³	18h	1
2026-05-25	78	8–355	46.3 µg/m³	16h	1
2026-05-24	59	5–162	20.3 µg/m³	20h	2
2026-05-23	74	8–160	25.5 µg/m³	10h	1

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