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Environment

Historical 1-hr PM2.5

Data from Apr 2014 to Dec 2024

Last updated: 20 Feb 2025, 10:36 SGT

NEA (National Environment Agency)

Historical regional 1-hr PM2.5 value measured in µg/m3

Data explorer

Historical1hrPM2.5.csv (94.3K rows, 2.7 MB)

1hr Pm25 Text	North Text	South Text	East Text	West Text	Central Text
(Null)0.0%	(Null)0.0% 76.4% 86.3% 96.5% 106.3%	(Null)0.0% 66.1% 76.5% 86.5% 96.3%	(Null)0.0% 76.1% 86.4% 96.3% 106.2%	(Null)0.0% 56.4% 66.4% 76.4% 86.2%	(Null)0.0% 86.0% 96.2% 105.9% 115.7%
1/4/2014 1:00	7	6	7	23	8
1/4/2014 2:00	10	10	10	36	10
1/4/2014 3:00	15	20	15	31	15
1/4/2014 4:00	21	14	27	36	12
1/4/2014 5:00	28	12	28	35	22
1/4/2014 6:00	28	31	21	33	24
1/4/2014 7:00	37	24	27	35	28
1/4/2014 8:00	19	16	25	19	37
1/4/2014 9:00	19	17	18	25	22
1/4/2014 10:00	21	16	20	25	14

Column legend

Title	Column name	Data type	Unit of measure	Description
1hr Pm25	1hr_pm25	Text	-	-
North	north	Text	-	-
South	south	Text	-	-
East	east	Text	-	-
West	west	Text	-	-
Central	central	Text	-	-

Analyse this dataset with Colab Notebook

1. Copy this dataset ID: d_6c0d5fc34838b12472475fdb73c0af29
2. Click on the button below

Sample OpenAPI query

This code can be used to test a sample API query. It retrieves the data catalogue of this dataset. For a complete guide on query parameters and syntax, please refer to the API documentation. Try it out on your browser to see the response schema.

import requests
          
dataset_id = "d_6c0d5fc34838b12472475fdb73c0af29"
url = "https://data.gov.sg/api/action/datastore_search?resource_id="  + dataset_id 
        
response = requests.get(url)
print(response.json())

Citation

This dataset can be reused and cited in research publications.

National Environment Agency. (2020). Historical 1-hr PM2.5 (2025) [Dataset]. data.gov.sg. Retrieved October 23, 2025 from https://data.gov.sg/datasets/d_6c0d5fc34838b12472475fdb73c0af29/view

About this dataset

Contact

Maye_WOO@nea.gov.sg

Created on

31 Mar 2020

Licence

Free forever for personal or commercial use, under the Open Data Licence.

Agency

NEA (National Environment Agency)