What is the air quality trend in Diamond Harbour?

Over the past 6 days, Diamond Harbour had an average AQI of 104 based on station measurements. The worst day was 2026-10-14 with AQI 128.

How is Diamond Harbour air quality measured?

Air quality in Diamond Harbour 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 Diamond Harbour, India

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

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

110

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

26h

PM2.5 Station

26h · 10 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	114	114–115	41.0 µg/m³	2h	10
2026-10-20	116	115–117	41.5 µg/m³	7h	10
2026-10-18	90	87–93	30.7 µg/m³	7h	11
2026-10-17	94	89–108	32.4 µg/m³	6h	8
2026-10-15	85	85–85	28.2 µg/m³	2h	5
2026-10-14	128	105–152	46.9 µg/m³	2h	1

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