Air quality in Singapore (1 April 2016)
Air quality in Singapore (31 March 2016)
The past few days have witnessed a sudden surge in the PSI. According to news media, the haze is not due to forest fires in Sumatra and the wind is predominantly blowing southward. Where can this haze be coming from? Johor seems to be a likely culprit. We note that we do have a large petrochemical plant located at Pasir Gudang in Johor, lying just a few miles from Punggol.
A word of advice. The official PSI reported by NEA could be misleadingly low. Visit http://aqicn.org/city/singapore/south/ instead.