What is the air quality trend in Coonoor?

Over the past 8 days, Coonoor had an average AQI of 72 based on station measurements. The worst day was 2026-05-27 with AQI 102.

How is Coonoor air quality measured?

Air quality in Coonoor 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 Coonoor, India

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

120h

PM2.5 Station

120h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	56	11–99	16.4 µg/m³	16h	2
2026-05-28	42	10–106	11.7 µg/m³	15h	1
2026-05-27	102	16–300	52.3 µg/m³	15h	2
2026-05-26	99	15–281	44.2 µg/m³	18h	2
2026-05-25	98	10–415	48.4 µg/m³	20h	2
2026-05-24	78	7–193	31.8 µg/m³	17h	2
2026-05-23	84	18–163	31.5 µg/m³	18h	2
2026-05-22	21	21–21	5.0 µg/m³	1h	1

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