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Air quality readings will be available hourly from 1am to 12am.
Hourly updates of 3-hr PSI readings are provided from 1am to 12am. The 3-hr PSI readings are calculated based on PM2.5 concentrations only.
National Environment Agency
40 Scotts Road, #13-00
Customer Service Centre
40 Scotts Road #02-00
Customer Service Centre (Hawkers)
HDB Hub, East Wing, #26-01
480 Lorong 6 Toa Payoh
© 2013, Government of Singapore
Last Updated on 28 July 2014
National Environment Agency of Singapore All Rights Reserved
Copyright (C) National Environment Agency 2013