poon cho tang SG 3-hour PSI = 51 as at 12 midnight 10 Oct 2006 Health Advisory Persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity.The general population should reduce vigorous outdoor activity.
poon cho tang SG 3-hour PSI = 42 as at 8 am 10 Oct 2006 Health Advisory Persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity.The general population should reduce vigorous outdoor activity.
poon cho tang SG 3-hour PSI = 38 as at 9 am 10 Oct 2006 Health Advisory Persons with existing heart or respiratory ailments should reduce physical exertion and outdoor activity.The general population should reduce vigorous outdoor activity.
nightzip SG why is that that there is a health advisory for PSI 40+ yesterday, but no health advisory for PSI 40+ today?
