This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: Dozens of critically endangered orangutans have been rescued in recent weeks from rampant wildfires burning across Indonesia that have cloaked the region in toxic haze, conservation groups said. Singapore experienced the longest duration of unhealthy air levels since Southeast Asia's most severe haze crisis hit in 2015, officials told AFP.
The fires have triggered a months-long pollution spell that has closed schools, fueled a surge in respiratory conditions both among humans and animals and restricted outdoor activities in Indonesia, Malaysia, Singapore and East Timor. Pollution levels ranged from unhealthy to very unhealthy across the region on Sunday, as fires continued to burn and emit smoke on Borneo and Sumatra islands, intensified by a turbocharged El Niño weather phenomenon. Swiss-based air quality monitor IQAir again ranked Singapore and Kuala Lumpur among the world's top five most polluted major cities on Sunday afternoon.
Singapore has now seen "the longest duration of air quality being in the unhealthy range since 2015," said Jason Evans Tan, a deputy director at Singapore's National Environment Agency, noting the current spell began on Oct. 5. In Indonesia, groups are working to save wildlife including orangutans from the fires. On Saturday, the West Kalimantan conservation agency and Indonesian nonprofit YIARI said a team evacuated 51 orangutans from locations in the province from Aug. 6 to Oct. 19.
And figures from Indonesia's forestry ministry suggested this week that the number rescued over recent months in Kalimantan could be as high as 96. Officials could not be immediately reached to clarify the number. Three conservation agencies saved a 20-year-old male orangutan in Hampangen village in Central Kalimantan on Borneo island on Saturday.
"The evacuation process was carried out with great caution," the agencies said. "After the orangutan was sedated, the medical team immediately conducted a health examination before taking the animal to the... rehabilitation center," they said. "We tried to check and found that there are a few orangutans left in these small forest patches," WWF Indonesia conservation coordinator Fenky Wirada said.
Indonesia's transport ministry said around 2,400 flights across the country have been affected by the haze since mid-August. "Haze reduces visibility around airports, which can lead to delays, disruptions, and even flight cancellations," the ministry said. Malaysian Prime Minister Anwar Ibrahim late on Sunday said his country has proposed setting up a regional cooperation mechanism within the 11-member Association of Southeast Asian Nations to coordinate a response to border-crossing fires.
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