www.pharmacy.nhg.com.sg

Haze Health Advisory

24-Hour PSI (Pollutant Standards Index) Guidelines  

Healthy Persons   Healthy Persons                        Elderly, Pregnant, Women, Children Persons with Chronic Lung Disease, Heart Disease
0 - 50
Good
Normal activities Normal activities Normal activities
51 - 100
Moderate
Normal activities Normal activities Normal activities
101 - 200
Unhealthy
Reduce prolonged or strenuous outdoor physical exertion Minimise prolonged or strenuous outdoor physical exertion Avoid prolonged or strenuous outdoor physical exertion
201 - 300
Very unhealthy
Avoid prolonged or strenuous outdoor physical exertion  Minimise outdoor activity Avoid outdoor activity 
> 300
Hazardous
 
Minimise outdoor activity Avoid outdoor activity Avoid outdoor activity

  Source: www.haze.gov.sg   

  • Avoid - do not do   
  • Minimise - do as little as possible 
  • Prolonged - continuous exposure for several hours 
  • Reduce - do less 
  • Strenuous - involving a lot of energy or effort   

For latest update on haze or PSI level, do check the following websites:   

 

 


 
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