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Ozone, not haze, caused unhealthy air quality in northern Singapore

The Straits Times Ozone, not haze, caused unhealthy air quality in northern Singapore The haze as seen from Toa Payoh, in the direction of MacRitchie Reservoir, at 9.05am on March 1, 2021.ST PHOTO: KUA CHEE SIONG PublishedMar 1, 2021, 2:01 pm SGT https://str.sg/JVmZ They can read the article in full after signing up for a free account. Share link: Or share via: Sign up or log in to read this article in full Sign up All done! This article is now fully available for you Read now Get unlimited access to all stories at $0.99/month for the first 3 months. Get unlimited access to all stories at $0.99/month for the first 3 months.

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