The haze is back in Singapore, with the southwesterly winds blowing in the smoke from the fires in Sumatra.
The National Environment Agency (NEA) said the 3-hour PSI (Pollutant Standards Index) in Singapore reading on Tuesday climbed from 78 at 6pm to 84 at 8pm before dropping to 61 at 11pm. Though the readings are still in the moderate range, the condition has worsened from the 24-hour reading of 56 at 4pm. A PSI reading of above 100 is considered unhealthy.
The NEA said the latest satellite pass detected 202 hotspots in Sumatra, mainly in the provinces of South Sumatra, Jambi and Riau. The winds are
expected to remain southwesterly to westerly in
NEA added that, at a meeting to discuss haze pollution in Brunei last week, Singapore had cautioned that periods of dry conditions may occur during the inter-monsoon season. It also urged ASEAN member states to remain vigilant and to continuously monitor as well as implement haze prevention activities.
ASEAN Agreement on Transboundary Haze Pollution was signed in 2002 to curb forest fires and combat haze pollution.
Sumatra fires bring haze [The Strait Times, 17 Oct 2010]
Haze back in Singapore, with PSI hitting 84 [Channel NewsAsia, 19 Oct 2010]