Air pollution threatens the health of 2.4 million people across 12 districts in Colombo. The average PM2.5 level is 18.8 Āµg/mĀ³ā3.8Ć higher than the WHO guideline.
Brought to you by Amrit Sharma
Colombo faces significant air pollution challenges. 100% of districts exceed the WHO guideline for clean air. This is putting 2.4 million across 12 districts at risk.
The average PM2.5 over 2023 was 18.8Āµg/mĀ³. That's 3.8 times the WHO guideline for clean air of 5Āµg/mĀ³.
This is equivalent of everybody, including children, smoking about 312 cigarettes in a year.
If Colombo met the WHO guideline of 5 Āµg/mĀ³, the average person would live 1.36 years longer.
That's 3.3M years of life stolen from 2.4 million people. Years of watching children grow up. Years of building a career. Years of quiet mornings and celebrations.
Lives cut short. Breathing kills.
The top 10 most polluted districts in Colombo. These areas face the greatest health burden from air pollution.
Distribution of population across different PM2.5 pollution levels. The WHO guideline is 5 Āµg/mĀ³āonly populations below this threshold are breathing safe air.
Complete air quality data for every district in Colombo, sorted by population.
| District | Population | PM2.5 Āµg/mĀ³ | Years Lost |
|---|---|---|---|
| Colombo | 359K | 18.8 | 1.4 years |
| Kaduwela | 287K | 19.0 | 1.4 years |
| Kesbewa | 253K | 18.3 | 1.3 years |
| Homagama | 249K | 17.8 | 1.3 years |
| Thimbirigasyaya | 214K | 19.3 | 1.4 years |
| Kolonnawa | 203K | 19.5 | 1.4 years |
| Maharagama | 202K | 18.7 | 1.3 years |
| Dehiwala-Mount Lavinia | 186K | 19.1 | 1.4 years |
| Moratuwa | 170K | 18.8 | 1.3 years |
| Hanwella | 122K | 19.0 | 1.4 years |
| Sri Jayawardanapura Kotte | 112K | 19.3 | 1.4 years |
| Padukka | 66K | 17.5 | 1.2 years |
Showing 12 districts, sorted by population (largest first). PM2.5 values are for 2023. Years lost calculated against WHO guideline of 5 Āµg/mĀ³.