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CSV National Environment Agency

Historical Pollutant Standards Index (PSI) (2024)

What this data shows

Published by National Environment Agency. 52,356 records. Fields include Date, Timestamp, Update Timestamp, Region (20 columns in total). Covers 2024-01-01 to 2024-12-31. Last updated 2025-04-16.

Description

This dataset contains Singapore’s historical Pollutant Standards Index observations for 2024, with timestamps in Singapore Time using ISO 8601. Fields cover regional locations and coordinates, 24-hour PM10 and PM2.5, ozone, carbon monoxide, sulphur dioxide, nitrogen dioxide, pollutant sub-indices, and three-hour or 24-hour PSI. It supports retrospective air-quality and regional pollution analysis, but records may be missing and have not undergone the quality-control process used for official climate records.

Official description

Historical Pollutant Standards Index (PSI) for Singapore. All timestamps are provided in Singapore Time (SGT), formatted in ISO 8601. ⠀ Disclaimer: This dataset may contain missing records and has not undergone quality control procedures applied to climate data and records. For official climate records or climate data reports, please contact [email protected]. Please note that fees may apply for data and report preparation.

Download CSV View on data.gov.sg
Last updated
Coverage
2024-01-01 – 2024-12-31
Rows
52,356
Columns
20

Chart

Values are summed where multiple rows share the same category.

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Data

Date Timestamp Update Timestamp Region Region Id Location Longitude Location Latitude Pm10 Twenty Four Hourly Pm10 Sub Index Pm25 Twenty Four Hourly Pm25 Sub Index O3 Eight Hour Max
2024-01-01 2024-01-01T00:00:00+08:00 2024-01-01T00:00:41+08:00 south rSO 103.820000 1.295870 18.000000 18.000000 9.000000 37.000000 11.000000
2024-01-01 2024-01-01T00:00:00+08:00 2024-01-01T00:00:41+08:00 north rNO 103.820000 1.418030 15.000000 15.000000 7.000000 29.000000 4.000000
2024-01-01 2024-01-01T00:00:00+08:00 2024-01-01T00:00:41+08:00 east rEA 103.940000 1.357350 21.000000 21.000000 10.000000 41.000000 10.000000
2024-01-01 2024-01-01T00:00:00+08:00 2024-01-01T00:00:41+08:00 central rCE 103.820000 1.357350 23.000000 23.000000 10.000000 42.000000 18.000000
2024-01-01 2024-01-01T00:00:00+08:00 2024-01-01T00:00:41+08:00 west rWE 103.700000 1.357350 16.000000 16.000000 7.000000 28.000000 7.000000
2024-01-01 2024-01-01T00:00:00+08:00 2024-01-01T00:00:41+08:00 national NRS 0.000000 0.000000
2024-01-01 2024-01-01T01:00:00+08:00 2024-01-01T01:00:40+08:00 south rSO 103.820000 1.295870 18.000000 18.000000 8.000000 35.000000 10.000000
2024-01-01 2024-01-01T01:00:00+08:00 2024-01-01T01:00:40+08:00 north rNO 103.820000 1.418030 15.000000 15.000000 7.000000 28.000000 4.000000
2024-01-01 2024-01-01T01:00:00+08:00 2024-01-01T01:00:40+08:00 east rEA 103.940000 1.357350 23.000000 23.000000 10.000000 40.000000 8.000000
2024-01-01 2024-01-01T01:00:00+08:00 2024-01-01T01:00:40+08:00 central rCE 103.820000 1.357350 22.000000 22.000000 10.000000 41.000000 15.000000

Preview shows 10 rows and 12 columns. Use the table search or download the CSV for the full data.

Columns

Column Type Categorical
Date Date (YYYY-MM-DD) No
Timestamp Text Yes
Update Timestamp Text Yes
Region Text Yes
Region Id Text Yes
Location Longitude Numeric Yes
Location Latitude Numeric Yes
Pm10 Twenty Four Hourly Numeric Yes
Pm10 Sub Index Numeric Yes
Pm25 Twenty Four Hourly Numeric Yes
Pm25 Sub Index Numeric Yes
O3 Eight Hour Max Numeric Yes
O3 Sub Index Numeric Yes
Co Eight Hour Max Numeric Yes
Co Sub Index Numeric Yes
So2 Sub Index Numeric Yes
So2 Twenty Four Hourly Numeric Yes
No2 One Hour Max Numeric Yes
Psi Twenty Four Hourly Numeric Yes
Psi Three Hourly Numeric No