Drier weather conditions and likelihood of the warmer El Nino weather phenomenon are likely to spark fires in South-east Asia. Read more at straitstimes.com.
SINGAPORE - The need for a common indicator to track air quality in South-east Asia has become more urgent, with drier weather conditions and the likelihood of the warmer El Nino weather phenomenon developing in the coming months.
Asean members must agree collectively on which indicator to use, she said. “The importance is that there will be a uniform number to indicate air quality across the region, not like now, where the number for Singapore and Johor Bahru, for example, can be very different,” she added. This makes it incorrect to compare air quality based on one index with that calculated using another index which has a different methodology.
These indicators include a decrease in size of transboundary haze pollution area; an increase in the number of days with good or moderate air quality in terms of the PSI or AQI; and a reduction of hot spots to ensure a lower risk of transboundary haze under the Asean standard operating procedure on haze.
In Singapore, where the PSI is used, monitoring stations islandwide measure concentration levels of particulate matter , fine particulate matter , sulphur dioxide, nitrogen dioxide, ozone and carbon monoxide. PM2.5 was the dominant pollutant during transboundary haze episodes.the same period in 2023, the 24-hour PSI was in the “good” to “moderate” range on all days.
“The road map will guide Asean member states in making demonstrable improvements to achieve our vision of a haze-free Asean.”
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