What is the air quality in Kollam?

Kollam, India has an annual US AQI of 82 (Polluted) and average PM2.5 of 25.5 µg/m³, ranking #3901 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Kollam?

June is typically the cleanest month (AQI 65) and January the most polluted (AQI 105).

Where does Kollam's air quality data come from?

PM2.5: 1998–2026 (monitors 2020–2026, satellite 1998–2020, model 2025; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Kollam, India — Air Quality & Clean City Guide 2026

Kollam Air Quality Data

Global rank	City	Continent	AQI	PM2.5
3901	Kollam, India	Asia	AQI 82	PM2.5 25.5 µg/m³