Overall and regional PSI data (24-hr PSI, Pollutant Concentration and Sub-Index)

Pollutant Standards Index (PSI)

readings.psi_twenty_four_hourly.national

readings.psi_twenty_four_hourly.south

readings.psi_twenty_four_hourly.north

readings.psi_twenty_four_hourly.east

readings.psi_twenty_four_hourly.central

readings.psi_twenty_four_hourly.west

24-hr PSI

Sub-Index

readings.pm10_sub_index.national

readings.o3_sub_index.national

readings.so2_sub_index.national

readings.pm25_sub_index.national

readings.co_sub_index.national

Pollutant Sub-Indices

Contains information about the API (from Data.gov.sg)

Concentration is measured in micrograms per cubic metre

Overall and regional PSI data including pollutant concentrations and sub-indices

Additional information on regions provided

Provides longitude and latitude for placing readings on a map

Data.gov.sg APIs

- Updated hourly from NEA.
- Readings are provided for each major region in Singapore
- The `region_metadata` field in the response provides longitude/latitude information for the regions. You can use that to place the readings on a map.
- Use the `date_time` parameter to retrieve the latest PSI readings at that moment in time.
- Use the `date` parameter to retrieve all of the readings for that day.


API documentation