24 Hour Pollutant Standards Index (PSI) Singapore Level

You may use the 24 HR PSI index to plan for next day activities.

Region Level
Central 78 - Moderate
North 62 - Moderate
South 67 - Moderate
East 74 - Moderate
West 56 - Moderate

24-HR PSI data last updated at 01/10/2023 5:45PM.

1-HR PM2.5 Singapore Level

You may use the PM2.5 index to plan for immediate outdoor activities such as going for a jog.

Region Level
Central 39 (Band 1 - Normal)
North 19 (Band 1 - Normal)
South 18 (Band 1 - Normal)
East 37 (Band 1 - Normal)
West 15 (Band 1 - Normal)

24-HR PSI data last updated at 01/10/2023 5:45PM.

PSI Legend

PSI Level
0 - 50 Good
Normal activities
51 - 100 Moderate
Normal activities
101 - 200 Unhealthy
Healthy Persons: REDUCE prolonged or strenuous outdoor physical exertion
Elderly, Pregnant Woman, Children: MINIMISE prolonged or strenous outdoor physical exertion
Persons with Chronic Lung Disease, Heart Disease: AVOID prolonged or strenous outdoor physical exertion
201 and 300 Very unhealthy
Healthy Persons: AVOID prolonged or strenuous outdoor physical exertion
Elderly, Pregnant Woman, Children: MINIMISE outdoor activity
Persons with Chronic Lung Disease, Heart Disease: AVOID outdoor activity
Above 300 Hazardous
Healthy Persons: MINIMISE outdoor activity
Elderly, Pregnant Woman, Children: AVOID outdoor activity
Persons with Chronic Lung Disease, Heart Disease: AVOID outdoor activity

PM2.5 Legend

PM2.5 Level
0 - 55 Band 1 - Normal
CONTINUE with normal activities
56 - 150 Band 2 - Elevated
REDUCE strenuous outdoor activity for the next hour

Vulnerable persons1: AVOID streneous outdoor activity for the next hour
151 - 250 Band 3 - High
AVOID strenuous outdoor activity for the next hour

Vulnerable persons1: AVOID all outdoor activity for the next hour
251 and above Band 4 - Very High
MINIMISE all outdoor activity for the next hour

Vulnerable persons1: AVOID all outdoor activity for the next hour

1. Vulnerable persons include the elderly, pregnant women, children and persons with chronic lung disease or heart disease.

Source: haze.gov.sg

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