What is the air quality trend in Diamond Harbour?

Over the past 13 days, Diamond Harbour had an average AQI of 112 based on station measurements. The worst day was 2026-10-04 with AQI 156.

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

82h

PM2.5 Station

82h · 10 stations

Temperature GFS model

80pt

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
2026-10-12	132	98–148	48.0 µg/m³	12h	8
2026-10-09	95	93–98	32.9 µg/m³	14h	10
2026-10-08	101	91–132	35.7 µg/m³	6h	6
2026-10-05	120	116–131	43.5 µg/m³	12h	10
2026-10-04	156	156–156	66.1 µg/m³	1h	1
2026-10-02	122	110–151	44.2 µg/m³	4h	7
2026-10-01	112	107–122	40.0 µg/m³	7h	10

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