Historical Pollutant Standards Index (PSI) (2024)

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Data from Jan 2024 to Dec 2024Updated 10 days ago

NEA (National Environment Agency)

Historical Pollutant Standards Index (PSI) for Singapore. All timestamps are provided in Singapore Time (SGT), formatted in ISO 8601.

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Please note that some dates may be missing from the dataset. We are currently in the process of back-filling these missing records to provide a more complete dataset.

Data explorer

HistoricalPollutantStandardsIndexPSI2024.csv (52.4K rows, 8.7 MB)

Date Date (YYYY-MM-DD)	Timestamp Text	Update Timestamp Text	Region Text	Region Id Text	Location Longitude Numeric	Location Latitude Numeric	Pm10 Twenty Four Hourly Numeric	Pm10 Sub Index Numeric	Pm25 Twenty Four Hourly Numeric	Pm25 Sub Index Numeric	O3 Eight Hour Max Numeric	O3 Sub Index Numeric	Co Eight Hour Max Numeric	Co Sub Index Numeric	So2 Sub Index Numeric	So2 Twenty Four Hourly Numeric	No2 One Hour Max Numeric	Psi Twenty Four Hourly Numeric	Psi Three Hourly Numeric
(Null)0.0%	(Null)0.0% 2024-01-01T00:00:00+08:00<0.1% 2024-01-01T01:00:00+08:00<0.1% 2024-01-01T02:00:00+08:00<0.1% 2024-01-01T03:00:00+08:00<0.1%	(Null)0.0% 2024-01-01T00:00:41+08:00<0.1% 2024-01-01T01:00:40+08:00<0.1% 2024-01-01T02:00:29+08:00<0.1% 2024-01-01T03:00:33+08:00<0.1%	(Null)0.0% east16.7% west16.7% north16.7% south16.7%	(Null)0.0% NRS16.7% rCE16.7% rEA16.7% rNO16.7%	(Null)0.0% 016.7% 103.8249.9% 103.716.6% 103.9416.6%	(Null)0.0% 016.7% 1.3573550.0% 1.2958716.7% 1.4180316.7%	(Null)16.7% 21.04.5% 22.04.5% 23.04.5% 24.04.4%	(Null)16.7% 21.04.5% 22.04.5% 23.04.5% 24.04.4%	(Null)16.7% 10.08.6% 9.08.2% 11.08.0% 12.07.3%	(Null)16.7% 52.05.6% 53.04.9% 54.04.5% 55.03.7%	(Null)16.8% 8.03.5% 11.03.4% 9.03.3% 7.03.3%	(Null)16.9% 3.07.9% 4.07.8% 5.07.7% 2.07.1%	(Null)68.1% 1.031.8% 2.00.1%	(Null)16.8% 4.023.9% 5.019.1% 3.013.7% 6.011.6%	(Null)16.7% 2.034.3% 1.018.8% 3.016.6% 4.07.3%	(Null)16.7% 3.022.4% 2.020.6% 4.016.0% 5.09.6%	(Null)16.8% 13.03.6% 12.03.5% 11.03.4% 10.03.3%	(Null)16.7% 52.05.6% 53.04.9% 54.04.5% 55.03.7%	(Null)100.0%
2024-01-01	2024-01-01T00:00:00+08:00	2024-01-01T00:00:41+08:00	south	rSO	103.82	1.29587	18.0	18.0	9.0	37.0	11.0	5.0		4.0	2.0	2.0	11.0	37.0
2024-01-01	2024-01-01T00:00:00+08:00	2024-01-01T00:00:41+08:00	north	rNO	103.82	1.41803	15.0	15.0	7.0	29.0	4.0	2.0		4.0	1.0	2.0	20.0	29.0
2024-01-01	2024-01-01T00:00:00+08:00	2024-01-01T00:00:41+08:00	east	rEA	103.94	1.35735	21.0	21.0	10.0	41.0	10.0	4.0	1.0	6.0	1.0	2.0	32.0	41.0
2024-01-01	2024-01-01T00:00:00+08:00	2024-01-01T00:00:41+08:00	central	rCE	103.82	1.35735	23.0	23.0	10.0	42.0	18.0	7.0		2.0	2.0	4.0	28.0	42.0
2024-01-01	2024-01-01T00:00:00+08:00	2024-01-01T00:00:41+08:00	west	rWE	103.7	1.35735	16.0	16.0	7.0	28.0	7.0	3.0	1.0	7.0	1.0	2.0	14.0	28.0
2024-01-01	2024-01-01T00:00:00+08:00	2024-01-01T00:00:41+08:00	national	NRS	0	0
2024-01-01	2024-01-01T01:00:00+08:00	2024-01-01T01:00:40+08:00	south	rSO	103.82	1.29587	18.0	18.0	8.0	35.0	10.0	4.0		4.0	2.0	2.0	11.0	35.0
2024-01-01	2024-01-01T01:00:00+08:00	2024-01-01T01:00:40+08:00	north	rNO	103.82	1.41803	15.0	15.0	7.0	28.0	4.0	2.0		4.0	1.0	2.0	18.0	28.0
2024-01-01	2024-01-01T01:00:00+08:00	2024-01-01T01:00:40+08:00	east	rEA	103.94	1.35735	23.0	23.0	10.0	40.0	8.0	4.0	1.0	6.0	1.0	2.0	33.0	40.0
2024-01-01	2024-01-01T01:00:00+08:00	2024-01-01T01:00:40+08:00	central	rCE	103.82	1.35735	22.0	22.0	10.0	41.0	15.0	7.0		3.0	2.0	4.0	30.0	41.0

Column legend

Title	Column name	Data type	Unit of measure	Description
Date	date	Date (YYYY-MM-DD)	-	-
Timestamp	timestamp	Text	-	-
Update Timestamp	update_timestamp	Text	-	-
Region	region	Text	-	-
Region Id	region_id	Text	-	-
Location Longitude	location_longitude	Numeric	-	-
Location Latitude	location_latitude	Numeric	-	-
Pm10 Twenty Four Hourly	pm10_twenty_four_hourly	Numeric	-	-
Pm10 Sub Index	pm10_sub_index	Numeric	-	-
Pm25 Twenty Four Hourly	pm25_twenty_four_hourly	Numeric	-	-
Pm25 Sub Index	pm25_sub_index	Numeric	-	-
O3 Eight Hour Max	o3_eight_hour_max	Numeric	-	-
O3 Sub Index	o3_sub_index	Numeric	-	-
Co Eight Hour Max	co_eight_hour_max	Numeric	-	-
Co Sub Index	co_sub_index	Numeric	-	-
So2 Sub Index	so2_sub_index	Numeric	-	-
So2 Twenty Four Hourly	so2_twenty_four_hourly	Numeric	-	-
No2 One Hour Max	no2_one_hour_max	Numeric	-	-
Psi Twenty Four Hourly	psi_twenty_four_hourly	Numeric	-	-
Psi Three Hourly	psi_three_hourly	Numeric	-	-

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_9213cd2e4631f7148ab5932a10df9958"
url = "https://data.gov.sg/api/action/datastore_search?resource_id="  + dataset_id 
        
response = requests.get(url)
print(response.json())

Data explorer

HistoricalPollutantStandardsIndexPSI2024.csv (52.4K rows, 8.7 MB)

Column legend

Analyse this dataset with Colab Notebook

Sample OpenAPI query

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