There has been an improvement in air quality since last night, and this improvement has been sustained this morning. As at 12 noon today, the 24-hr PSI is 88-98 and the 24-hr PM2.5 is 81-102 microgrammes/ cubic metre. The improvement in the air quality is due to a change in the direction of the low level winds over Singapore, from south-westerly to southerly, since last night.
Sunday, June 23, 2013
Sneaking Out
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