Bad air days? The problem could well be domestic
Traffic, power generation among local sources of pollution; another factor is construction dust: Study
Sign up now: Get ST's newsletters delivered to your inbox

Using data from computer simulation models and observations, Dr Lee Hsiang-He's study showed that about 40 per cent of bad air days in Singapore were caused by a combination of both domestic and foreign sources of air pollution. It suggested that a further 25 per cent of bad air days here were caused by local sources of air pollution, such as traffic, power generation and industry.
ST PHOTO: NG SOR LUAN
Noel Low
