Is air pollution bad in Colombo.

Compared to massive mega cities in India or China the air quality in Colombo is actually surprisingly good primarily because it is a coastal city constantly flushed by strong ocean breezes. However during peak rush hour traffic the exhaust fumes from thousands of diesel buses and two stroke tuk tuks can become locally intense along the main arterial roads. If you have asthma simply avoid walking directly alongside Galle Road during the 5 PM traffic jam. Sticking to the oceanfront promenade at Galle Face Green or the leafy shaded streets of Colombo 07 will be perfectly comfortable.