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Will Haze Worsen the COVID-19 Situation?

Published on: September 7, 2020

Haze is an atmospheric phenomenon defined as the lack of transparency of air due to suspended particles such as dust, smoke and water. Singapore experiences haze when forest fires in the region take place. It can be made worse by dry seasons, changes in wind direction, and when rainfall is low. The problem has accelerated in recent years, contributing to a deterioration in air quality.

Though seasonal, continuous exposure to unhealthy daily average Pollutant Standards Index (PSI) levels during this period can cause respiratory symptoms and aggravate existing heart or lung diseases.


Should we be Concerned if Haze Returns?

When asked if we should be concerned or worried about the haze if it returns amidst the pandemic, Consultant Respiratory Physician and Intensivist Dr. Alvin Ng commented that the concern is justifiable because majority of our resources are now diverted to mitigate the pandemic’s impact. However, the pandemic is not the only danger we would have to face.

Haze is a triggering factor of asthma and if the condition is not well controlled, complications may arise when one is infected with COVID-19. For patients with asthma, or those who are immunocompromised, Dr. Ng’s advice is for them to stay indoors as much as possible and not over exert themselves.


Monitoring PSI Levels

Another point he highlighted is that haze itself will cause breathing problems. It is essential to educate the population - especially those who are at a higher risk of complications - to keep tab on the environmental pollution levels, plan activities accordingly and most importantly, take preventive measures when required.

Here's a guide to planning activities based on the 24-hour PSI forecast:

Photo credit: The National Environment Agency

Listen as Dr. Alvin Ng discusses the Haze and COVID-19:

 

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