What is the air quality trend in Coonoor?

Over the past 15 days, Coonoor had an average AQI of 76 based on station measurements. The worst day was 2026-05-24 with AQI 120.

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
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

288h

PM2.5 Station

288h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	52	28–71	14.5 µg/m³	5h	2
2026-05-29	59	15–149	17.2 µg/m³	21h	2
2026-05-28	62	9–172	21.5 µg/m³	20h	2
2026-05-27	92	15–302	39.4 µg/m³	19h	2
2026-05-26	73	15–176	29.0 µg/m³	21h	2
2026-05-25	69	3–163	23.0 µg/m³	22h	2
2026-05-24	120	30–500	59.8 µg/m³	20h	2
2026-05-23	107	8–406	50.1 µg/m³	21h	3
2026-05-22	66	18–164	21.8 µg/m³	21h	2
2026-05-21	91	22–193	37.9 µg/m³	22h	2
2026-05-20	70	28–163	22.5 µg/m³	22h	2
2026-05-19	72	12–399	35.1 µg/m³	21h	2
2026-05-18	63	12–122	20.1 µg/m³	21h	2
2026-05-17	56	9–169	19.0 µg/m³	19h	1
2026-05-16	88	20–219	37.3 µg/m³	13h	2

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