Weekly Air Quality Update for Sri Lanka
01 – 07 June 2026
Summary
In general, cleaner air flowed into Sri Lanka from the southwestern direction during the past week, contributing to favorable air quality conditions across the country. The majority of the days recorded ‘Good’ daily average AQI values. The highest daily average AQI value recorded during the week was 60 in Battaramulla, which falls under the ‘Moderate’ category.
Considering the weekly average AQI values, all monitored locations recorded ‘Good’ air quality levels throughout the week.
Weekly Air Quality Index (AQI) Levels:
- Good (AQI 0-50): Akurana, Nuwara Eliya, Colombo, Kurunegala, Puttalam, Mirihana, Negombo, Battaramulla, Chilaw, Kalawana, Ambalantota, Mannar, Trincomalee, Jaffna, Anuradhapura
Read more about AQ color scale and real-time air quality stations operated by FECT https://fect.lk/air-quality/
Observed fine particulate measurements by the minute for last days
Air Quality impact on human health
Fine particulate matter (PM 2.5) are generally 2.5 microns and smaller in size. Such particles are inhalable and easily lodges inside the lungs reducing capacity. PM2.5 is a concern for people’s health when levels in the air are high. The levels of risk are shown in the dial shown against the US EPA air quality standards. AQ has a scale that run from 0-500, that tells you how clean or polluted your air is. Each level on the scale corresponds to a different level of health concern.