What is the air quality trend in Kollam?

Over the past 15 days, Kollam had an average AQI of 61 based on station measurements. The worst day was 2026-06-02 with AQI 82.

How is Kollam air quality measured?

Air quality in Kollam 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 Kollam, India

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

265h

PM2.5 Station

265h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	55	32–76	15.3 µg/m³	6h	2
2026-06-08	67	14–221	24.9 µg/m³	22h	2
2026-06-07	62	23–153	18.8 µg/m³	18h	2
2026-06-06	73	13–164	26.3 µg/m³	19h	2
2026-06-05	64	18–112	20.0 µg/m³	21h	2
2026-06-04	60	21–173	20.2 µg/m³	23h	2
2026-06-03	80	15–229	31.3 µg/m³	19h	2
2026-06-02	82	7–500	58.2 µg/m³	23h	2
2026-06-01	43	8–98	12.2 µg/m³	16h	2
2026-05-31	33	13–78	8.6 µg/m³	15h	2
2026-05-30	45	18–87	12.7 µg/m³	18h	2
2026-05-29	59	19–161	18.9 µg/m³	16h	2
2026-05-28	59	28–159	17.7 µg/m³	19h	2
2026-05-27	64	17–185	23.1 µg/m³	18h	2
2026-05-26	80	35–135	25.9 µg/m³	12h	2

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