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65 clusters · 234 sources · 88 days · First seen · Last updated
Southeast Asian transboundary haze crisis fluctuates
Overview
The transboundary haze crisis in Southeast Asia, driven by the 2026 El Niño phenomenon, experienced significant fluctuations in air quality through late October and early November.
While conditions had briefly improved in late October, air quality in Malaysia regressed on October 22, with 17 monitoring stations reporting unhealthy Air Pollutant Index (API) levels. The highest readings were recorded in Nilai, Negeri Sembilan, at 164, and Johan Setia, Selangor, at 162. Unhealthy levels were also noted in Selangor, Negeri Sembilan, Melaka, Kuala Lumpur, Johor, and Sarawak. By October 27, Samalaju in Sarawak became the only area in Malaysia to record an unhealthy API of 152, while most other regions maintained moderate levels.
In Singapore, air quality improved by October 23, with PM2.5 readings returning to the normal range after more than two weeks of unhealthy conditions. However, the National Environment Agency warned that air quality could temporarily worsen due to dry conditions in southern Sumatra and Kalimantan, which might transport smoke toward Singapore under south-easterly winds.
By November 4, air quality across Malaysia had stabilized at good to moderate levels, with no stations reporting unhealthy API readings. Monitoring systems indicated good air quality in parts of Sarawak, Terengganu, and Pahang, while moderate readings were widespread across Selangor, Kuala Lumpur, Negeri Sembilan, Perak, Johor, Kelantan, Penang, Sabah, Melaka, and Sarawak.
Entities
Indonesia · Kalimantan · Malaysia · Singapore · National Environment Agency
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 6 SOURCES] Eleven areas in Malaysia recorded unhealthy Air Pollutant Index (API) readings as of August 12.
- [● 6 SOURCES] Up to 30 areas in Malaysia recorded unhealthy Air Pollutant Index (API) readings.
- [● 5 SOURCES] Nearly 940 square kilometers of land were burned in July.
- [● 4 SOURCES] Serian in Sarawak recorded the highest unhealthy Air Pollutant Index (API) reading of 197.
- [● 4 SOURCES] Serian in Sarawak recorded one of the highest API readings, reaching 182.
- [● 3 SOURCES] The Air Pollutant Index in Serian reached an unhealthy level of 198.
- [○ 1 SOURCE] Authorities reported that 95,000 hectares burned during July alone.
- [● 14 SOURCES] The El Niño phenomenon has contributed to extreme drought conditions, exacerbating the forest fires.
- [● 13 SOURCES] King Sultan Ibrahim consented to the declaration of a state of emergency in the Serian Division of Sarawak.
- [● 10 SOURCES] An API reading between 101 and 200 is categorized as unhealthy.
- [● 10 SOURCES] The Air Pollutant Index in Serian fell to 334 on September 5, down from over 500 on September 4.
- [● 10 SOURCES] The Indonesian Ministry of Forestry counts hundreds of active fires.
Timeline
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[HEALTH] 2 sourcesMalaysia air quality remains good to moderate
Air quality in Malaysia is currently rated as good or moderate, with no stations reporting unhealthy Air Pollutant Index levels as of November 4.
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[INTERNATIONAL] 2 sourcesSingapore haze expected to ease due to shifting winds and rain
Singapore's haze is expected to improve as shifting winds and increased rainfall reduce the transport of smoke from regional fires in Indonesia.
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[INTERNATIONAL] 3 sourcesMalaysia air quality improves with no unhealthy readings reported
Malaysia's air quality has improved, with no areas recording unhealthy Air Pollutant Index (API) levels. Most locations currently report moderate or good air quality levels.
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[INTERNATIONAL] 4 sourcesHaze in Southeast Asia forces cancellation of major running events
Seasonal haze in Malaysia and Singapore has forced the cancellation or relocation of numerous marathons and running events due to unhealthy air quality levels.
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[INTERNATIONAL] 4 sourcesSamalaju records unhealthy air quality in Sarawak
Samalaju in Sarawak is the only Malaysian region reporting unhealthy air quality with an API of 152, while most other areas remain in the moderate category.
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[INTERNATIONAL] 3 sourcesSingapore air quality improves as haze levels ease
Singapore's air quality has improved to moderate levels after weeks of unhealthy haze, though forecasts suggest temporary worsening due to smoke drifting from Sumatra and Kalimantan.
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[INTERNATIONAL] 4 sourcesMalaysia air quality reaches unhealthy levels in 17 stations
Air quality in Malaysia has reached unhealthy levels at 17 monitoring stations, with the highest readings recorded in Nilai and Selangor. Many other regions report moderate air quality.
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[INTERNATIONAL] 4 sourcesMalaysia air quality: 30 areas record unhealthy API levels
Over 30 areas in Malaysia have recorded unhealthy Air Pollutant Index (API) levels, with Batu Muda and Johan Setia reporting the highest readings of approximately 172 to 173.
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[INTERNATIONAL] 3 sourcesSingapore air quality reaches unhealthy levels due to haze
Singapore is experiencing unhealthy air quality across most regions due to smoke haze drifting from Kalimantan and Sumatra, with PSI levels reaching unhealthy ranges in four out of five districts.
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[INTERNATIONAL] 5 sourcesMalaysia records unhealthy air quality in 25 areas due to haze
Haze has caused unhealthy air quality readings in 25 Malaysian areas, with Pasir Gudang, Johor, recording the highest API of 190.
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[INTERNATIONAL] 40 sourcesSoutheast Asia haze crisis triggers highest regional alert
Severe Indonesian forest fires have triggered a high-level ASEAN haze alert, causing hazardous air quality, flight disruptions, and health crises across Southeast Asia, including Singapore and Malaysia.
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[INTERNATIONAL] 6 sourcesSingapore investigates companies linked to haze-causing fires
Singapore is investigating companies linked to Indonesian forest fires under its Transboundary Haze Pollution Act while issuing health advisories and mask distributions due to worsening air quality.
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[HEALTH] 3 sourcesAir quality in Malaysia reaches unhealthy levels in 24 areas
Twenty-four areas in Malaysia, including Pasir Gudang, recorded unhealthy Air Pollutant Index (API) levels, with Johor and Negeri Sembilan among the most affected regions.
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[INTERNATIONAL] 7 sourcesSouth Sulawesi officials respond to haze from forest fires
Authorities in Sinjai and Jeneponto, Indonesia, are distributing masks and coordinating emergency responses to protect public health from haze caused by forest and land fires.
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[INTERNATIONAL] 7 sourcesFirefly extends flight cancellations due to regional haze
Haze from Indonesian wildfires has caused unhealthy air quality in Singapore and Malaysia, leading Firefly to extend flight cancellations between Subang and Seletar through October 14.
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[HEALTH] 3 sourcesSingapore to activate haze-related medical subsidies on October 12
Singapore is activating haze-related medical subsidies starting October 12, capping treatment costs for eligible citizens at polyclinics and participating GP clinics due to deteriorating air quality.
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[INTERNATIONAL] 38 sourcesIndonesia wildfires trigger severe haze across Southeast Asia
Severe Indonesian wildfires fueled by El Niño have caused hazardous haze across Southeast Asia, impacting air quality in Singapore and Malaysia, forcing school closures, and threatening wildlife.
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[SPORTS] 35 sourcesSingapore Grand Prix faces heat hazard and haze concerns
The Singapore Grand Prix faces extreme heat and unhealthy haze from Indonesian wildfires. The FIA has declared a Heat Hazard, allowing optional driver cooling vests, while haze may restrict outdoor activities.
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[INTERNATIONAL] 6 sourcesMalaysia records unhealthy air quality in 18 areas
Eighteen areas in Malaysia recorded unhealthy Air Pollutant Index levels, with Batu Pahat in Johor reporting the highest reading of 188.
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[INTERNATIONAL] 5 sourcesIndonesia forest fires trigger regional haze and transboundary pollution risks
Rising forest fires in Indonesia, especially in Kalimantan, are causing transboundary haze across Southeast Asia, threatening public health, wildlife, and the regional plantation sector.
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[INTERNATIONAL] 14 sourcesIndonesia faces hazardous air quality and forest fire smoke
Indonesia faces hazardous air quality in Palembang due to forest fires, with PM2.5 levels reaching dangerous peaks. Jakarta also reports poor air quality, while South Sulawesi prepares mask mandates.
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[INTERNATIONAL] 2 sourcesKuala Lumpur tops global pollution ranking amid Southeast Asian haze
Kuala Lumpur has topped global pollution rankings as Indonesian wildfires cause severe, unhealthy haze across Malaysia and Singapore, exacerbated by El Nino weather conditions.
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[HEALTH] 3 sourcesSingapore faces unhealthy haze from Sumatra and Kalimantan
Singapore is facing unhealthy haze levels due to smoke drifting from Sumatra and Kalimantan, with PSI readings reaching moderate to unhealthy ranges and residents reporting respiratory irritation.
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[HEALTH] 6 sourcesHaze from forest fires degrades air quality in Tanjungpinang and Batam
Haze from forest fires in Kalimantan and Riau has caused unhealthy air quality levels in Tanjungpinang and Batam, prompting health warnings for sensitive groups.
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[INTERNATIONAL] 6 sourcesMalaysia reports unhealthy air quality in 31 areas due to haze
Haze has returned to Malaysia, with 31 monitoring stations recording unhealthy Air Pollutant Index (API) levels, including high readings in Sarawak, Johor, and Melaka.
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[HEALTH] 6 sourcesSingapore air quality enters unhealthy range due to regional haze
Singapore experienced unhealthy air quality on September 27 as regional haze from Sumatra and Kalimantan fires pushed PSI levels into the unhealthy range, affecting outdoor events and public health advisories.
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[INTERNATIONAL] 3 sourcesSingapore air quality remains moderate amid regional haze
Singapore's air quality remains in the Moderate range as smoke plumes from fires in Sumatra and Kalimantan are monitored. Forecasted showers may help reduce haze risks.
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[HEALTH] 3 sourcesAir pollution reaches hazardous levels in parts of Indonesia
Air pollution in Indonesia has reached hazardous levels, with Jakarta ranking fifth globally for poor air quality and Murung Raya in Kalimantan recording an extreme ISPU of 1,472.
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[HEALTH] 2 sourcesSingapore faces haze risk from regional fires in Kalimantan and Sumatra
Singapore faces increased haze risks due to smoke plumes from fires in Kalimantan and Sumatra, with the SIIA issuing a rare “Red” rating for severe haze potential in 2026.
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[INTERNATIONAL] 2 sourcesMalaysia air quality reaches unhealthy levels in multiple regions
Air quality in Malaysia has reached unhealthy levels across numerous locations, with Sarawak recording the highest Air Pollutant Index readings in areas such as Serian and Kapit.
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[INTERNATIONAL] 7 sourcesHaze worsens across Malaysia with unhealthy air quality in 40 areas
Haze levels have risen across Malaysia, with 40 areas reporting unhealthy air quality. Sarawak is heavily impacted, with Kanowit, Kuching, and Samarahan recording high API readings.
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[INTERNATIONAL] 4 sourcesHaze impacts air quality in Pekanbaru and Batam
Haze is impacting air quality in Pekanbaru and Batam, Indonesia. Pekanbaru has implemented distance learning due to unhealthy PM2.5 levels, while Batam's airport operations remain unaffected.
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[INTERNATIONAL] 8 sourcesIndonesian wildfire haze triggers severe air pollution in southern Thailand
Wildfire haze from Indonesia has pushed PM2.5 air pollution levels in southern Thailand into dangerous red zones, prompting health warnings for residents in Hat Yai and surrounding provinces.
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[INTERNATIONAL] 4 sourcesRiau air quality reaches unhealthy levels amid haze
Pekanbaru faces ‘very unhealthy’ air quality due to haze, despite Riau recording only 42 hotspots out of 1,452 across Sumatra. Visibility in the city has dropped to five kilometers.
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[INTERNATIONAL] 13 sourcesMalaysia and Singapore face unhealthy air quality due to haze
Haze has caused unhealthy air quality across Peninsular Malaysia and Singapore, with Johan Setia, Selangor, recording one of the highest API levels.
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[HEALTH] 4 sourcesAir pollution reaches hazardous levels in parts of Indonesia
Severe air pollution is affecting Indonesia, with hazardous ISPU levels exceeding 1,000 in Kotawaringin Timur and unhealthy PM2.5 concentrations reported in Palembang due to forest and land fires.
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[HEALTH] 3 sourcesRiau faces respiratory infection surge amid forest fires and health insurance push
Riau faces a surge in respiratory infections due to forest fire haze, while Pekanbaru officials push for increased National Health Insurance (JKN) participation to ensure community health security.
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[POLITICS] 2 sourcesIndonesia holds high-level meeting to tackle forest fire risks
Indonesian officials and 358 land-use companies met to coordinate responses to forest fires as El Nino risks remain high.
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[INTERNATIONAL] 20 sourcesSarawak air quality remains unhealthy following lifting of Serian haze emergency
Haze from Indonesian forest fires has caused severe air pollution across Southeast Asia, triggering a haze emergency in Sarawak, Malaysia, and affecting air quality in the Philippines and Singapore.
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[INTERNATIONAL] 14 sourcesSoutheast Asia faces severe haze from Indonesian forest fires
Severe forest fires in Indonesia have caused a transboundary haze crisis, leading to unhealthy air quality in Singapore, Malaysia, and the Philippines, and impacting health and education across the region.
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[INTERNATIONAL] 24 sourcesSerian, Sarawak: Emergency declared due to hazardous haze
Malaysia has declared a state of emergency in Sarawak's Serian Division due to hazardous haze from Indonesian wildfires. Hundreds of schools are closed as authorities conduct cloud-seeding operations.
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[HEALTH] 5 sourcesDavao air quality affected by Indonesian wildfire haze
Haze from Indonesian wildfires has degraded air quality in the Philippines, pushing levels in parts of the Davao Region into the “Unhealthy for Sensitive Groups” category.
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[INTERNATIONAL] 2 sourcesPalembang air quality reaches unhealthy levels due to forest fires
Palembang's air quality reached ‘very unhealthy’ levels due to forest and land fire smoke in South Sumatra, prompting BMKG to advise residents to limit outdoor activities and wear protective gear.
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[INTERNATIONAL] 4 sourcesForest fires in Indonesia expose 3 million people to haze
Forest fires in Sumatra and Kalimantan have exposed 3 million people to haze, prompting Komnas HAM to demand human rights protections and Bulog to coordinate rice aid distribution.
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[INTERNATIONAL] 4 sourcesSouth Sumatra forest fires cause haze and flight delays
Haze from forest fires in South Sumatra is impacting aviation visibility at Palembang's SMB II Airport, though officials report a decrease in active hotspots despite ongoing smoke risks.
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[HEALTH] 2 sourcesHaze pollution prompts mask and vitamin distribution in Indonesia
Organizations in Dharmasraya and Kayuagung, Indonesia, are distributing masks and vitamins to protect citizens from respiratory issues caused by haze from forest and land fires.
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[HEALTH] 2 sourcesMalaysia haze causes surge in asthma and respiratory cases
Haze pollution in Malaysia has caused asthma cases to spike eightfold in one week, prompting health experts to warn both vulnerable and healthy individuals about respiratory risks.
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[HEALTH] 5 sourcesSri Aman air quality reaches very unhealthy levels due to haze
Haze has pushed air pollution in Sri Aman, Sarawak, into the ‘very unhealthy’ category. Schools in Lubok Antu have closed due to poor air quality affecting thousands of students.
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[HEALTH] 2 sourcesRiau institutions respond to hazardous haze from forest fires
Institutions in Riau, Indonesia, are responding to hazardous haze from forest fires; Universitas Abdurrab opened an emergency respiratory clinic, while Universitas Riau moved classes online.
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[INTERNATIONAL] 11 sourcesIndonesia implements remote learning and health alerts amid forest fires
Indonesia is responding to severe forest fire smoke by implementing remote learning for students and issuing health warnings for vulnerable groups, including pregnant women and the elderly.
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[INTERNATIONAL] 5 sourcesJambi forest fires cause poor air quality and trigger mask distribution
Forest fires in Jambi have caused poor air quality, leading schools to mandate masks and the military to distribute 6,000 free masks to residents to mitigate health risks.
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[INTERNATIONAL] 24 sourcesSoutheast Asia haze worsens as Indonesian forest fires impact Malaysia
Haze from Indonesian forest fires has caused unhealthy air quality across Malaysia and Indonesia, prompting school closures in Pekanbaru and triggering increased enforcement in Malaysia.
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[INTERNATIONAL] 21 sourcesIndonesia wildfires expose 3 million people to hazardous haze
Wildfires in Indonesia have exposed 3 million people to hazardous haze, causing a surge in respiratory infections. The government has deployed medical teams and supplies to seven affected provinces.
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[HEALTH] 8 sourcesMalaysia health issues rise amid haze and poor air quality
Haze in Malaysia has caused a 259% surge in asthma cases and a 124% rise in respiratory infections, with unhealthy air quality reported in Sarawak and other regions due to transboundary smoke.
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[INTERNATIONAL] 4 sourcesSarawak closes 591 schools due to worsening haze
Sarawak has closed 591 schools and implemented immediate closure protocols for childcare centers as haze levels rise, affecting nearly 197,000 students across 10 districts.
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[INTERNATIONAL] 2 sourcesWest Kalimantan faces 360 fire hotspots amid haze concerns
West Kalimantan faces 360 fire hotspots due to the dry season. Deputy Governor Krisantus Kurniawan has urged public vigilance and warned that corporations responsible for land fires may face license revocations
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[HEALTH] 2 sourcesRiau faces unhealthy air quality due to forest fire haze
Haze from forest fires in Sumatra has pushed air quality in Riau into the unhealthy red zone, prompting medical experts to advise mask use and limited outdoor activity for vulnerable groups.
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[INTERNATIONAL] 2 sourcesIndonesia faces wildfire risks amid El Nino and Mount Raung smoke
Indonesia faces heightened wildfire risks due to El Nino, with BMKG warning of dry weather until October. Meanwhile, smoke at Mount Raung is attributed to land fires rather than volcanic activity.
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[INTERNATIONAL] 16 sourcesIndonesia combats rising forest fires amid strong El Nino
Indonesia is battling intensified forest fires affecting over 200,000 hectares due to a strong El Nino. The government is deploying aircraft and cloud seeding to mitigate the crisis.
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[INTERNATIONAL] 6 sourcesSarawak reports unhealthy air quality due to transboundary haze
Unhealthy air quality levels have been recorded in several Malaysian regions, notably Sarawak, due to transboundary haze and hotspots in Kalimantan, prompting calls for regional action via ASEAN.
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[INTERNATIONAL] 11 sourcesSarawak closes 108 schools as haze levels rise
Haze from Indonesian forest fires has caused 108 schools in Sarawak's Serian district to close. Unhealthy air quality affects multiple Malaysian regions, with no significant improvement expected for days.
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[HEALTH] 3 sourcesAir quality in Indonesia reaches unhealthy levels due to forest fires
Air quality in parts of Indonesia, including Kubu Raya, has reached unhealthy levels due to forest and land fires, with PM2.5 concentrations hitting 250.0 µg/m³ in some areas.
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[INTERNATIONAL] 4 sourcesHaze from regional fires impacts air quality in Malaysia and Singapore
Haze from Indonesian forest fires is causing unhealthy air quality across Sarawak, Sabah, and parts of Malaysia, while Singapore monitors rising risks as dry conditions persist.
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[INTERNATIONAL] 11 sourcesIndonesia wildfires cause school closures and transboundary haze
Wildfires in Indonesia, driven by El Niño, have burned over 107,000 hectares, causing school closures and spreading unhealthy haze into Malaysia, particularly affecting Sarawak.
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[HEALTH] 6 sourcesSarawak haze worsens as Kalimantan fires drive unhealthy air quality
Sarawak’s API spiked to unhealthy levels as Kalimantan fires in Indonesia caused 643 hotspots; Malaysia’s environment agency activated haze action plans, cloud‑seeding and school closures.
Sources
24hod.sk · 350.org · agerpres.ro · alhijrahnews.com · aliran.com · aljazeera.com · anda.jor.br · antarafoto.com · antaranews.com · antiguatribune.com · arabnews.pk · archynewsy.com · arynews.tv · athleticsillustrated.com · autoplus.fr · azeritimes.com · bahanamahasiswa.co · baotintuc.vn · barbadosgazette.com · barbaraganz.blog.ilsole24ore.com · barefootlax.com · barristery.in · beautifulnara.com · bengkulu.tribunnews.com · berita.rtm.gov.my · beritaharian.sg · beritajatim.com · beritariau.com · beritasemasa.com.my · beritasulsel.com · bhaskarlive.in · bisnis.liputan6.com · blick.ch · brasilemfolhas.com.br · bukkzserc.hu · ca.sports.yahoo.com · chiangraitimes.com · clovermedia.jp · cnalifestyle.channelnewsasia.com · cnbcindonesia.com · cuestionentrerriana.com.ar · cyprus-mail.com · dailysintang.com · dayakdaily.com · deportelauquen.com.ar · descopera.ro · diamenty.forbes.pl · disway.id
This summary has been updated 98 times: see revision history