Watch: Orange haze blankets Indonesia's Kalimantan region

Palangka Raya was blanketed by thick orange smog, while witnesses recorded haze spreading across Indonesia's Kalimantan region. The smoke appeared while wildfires were still burning nearby. This matters because the pollution was not just visible; it reached levels described as hazardous by the national environment ministry's index.

The article reports an ISPU reading above 1,200 on Wednesday. That was four times higher than the hazardous level of 300. Authorities also linked the intense haze partly to slash-and-burn agricultural clearing, which adds smoke while fires are active.

The pollution did not remain a local problem. Toxic smog was choking millions across Indonesia, Singapore, and Malaysia. The report gives no forecast for when the fires or haze will end, but continuing fires and added burning suggest the regional air-quality crisis could persist.

Haze is air filled with tiny particles that reduce visibility and make distant objects look faint. Smog is polluted air containing smoke and other pollutants. The terms often overlap during large fires. Wildfire smoke can harm breathing, but it can also transform the landscape's appearance, as seen in Kalimantan's orange-covered skies.

The orange color comes from how smoke particles interact with sunlight. They scatter and absorb some colors more strongly than others. When thick smoke filters the light, warmer red and orange tones can appear more prominent. The article describes an orange haze over Palangka Raya and videos showing it washing across Kalimantan.

This color is not a measure of safety. A dramatic orange sky can signal dense pollution, and the article reports an ISPU reading above 1,200. The haze also spread beyond the immediate fires, affecting Indonesia, Singapore, and Malaysia.

The ISPU is Indonesia's air-pollution index. The article reports that its reading exceeded 1,200 in Palangka Raya's region. For comparison, the national environment ministry identifies 300 as the hazardous level. This makes the reported reading more than a routine warning; it shows an extreme pollution episode.

The clearest comparison is the article's own: a reading above 1,200 was four times higher than 300. Because the report says “exceeded 1,200,” the exact peak is not provided. Still, the comparison shows that the air was far beyond the stated hazardous benchmark while wildfires continued burning.

Such a reading indicates a serious public-health emergency, although the article does not list specific health measurements or official restrictions. Toxic smog was already choking millions across Indonesia, Singapore, and Malaysia, showing that the consequences reached beyond one city.

The article describes the smog's impact as regional rather than local. It says toxic haze was choking millions across Indonesia, Singapore, and Malaysia. That wording indicates a very large affected population, but it does not provide an exact number of people or identify which cities experienced the worst conditions.

Palangka Raya was a clear example of the crisis. Thick orange smog descended on the city, and witnesses captured videos of haze washing over Kalimantan. The nearby wildfires supplied smoke, while slash-and-burn agricultural clearing was partly blamed for making the haze more intense.

The cross-border impact matters because air pollution can spread beyond the place where it begins. In this case, the article connects fires in Indonesia's Kalimantan region with toxic smog affecting neighboring Singapore and Malaysia. It does not state how long the pollution would continue or give a recovery timeline.

Slash-and-burn agriculture is a land-clearing method in which vegetation is cut and then burned. Burning can remove plant material quickly, but it also creates smoke and releases fine particles into the air. The article identifies this practice as one factor compounding the intense haze in Indonesia.

The key mechanism is added fire. Wildfires were already continuing in Kalimantan when agricultural clearing fires contributed more smoke. When smoke from separate fires builds up, the air becomes thicker and visibility falls. The result was visible in Palangka Raya, where a dense orange haze covered the city.

Authorities only partly blamed slash and burn, so the article presents it as one contributor rather than the sole cause. The pollution became a regional problem, with toxic smog choking millions in Indonesia, Singapore, and Malaysia. Reducing added burning could help, but the article gives no specific policy plan.

When air pollution reaches hazardous levels, people can inhale large amounts of smoke particles and other pollutants. These can irritate the eyes and airways, trigger coughing, and make breathing harder. People with existing heart or lung conditions may face greater risks. These health effects are general air-pollution knowledge; the article itself specifically says the smog was choking millions.

Daily life can also be disrupted. People may avoid outdoor activity, schools or workplaces may face interruptions, and travel can become harder when visibility falls. In the article, thick orange smog descended on Palangka Raya, while videos showed haze spreading across Kalimantan. The reported ISPU reading exceeded 1,200.

That reading was four times the hazardous level of 300. The pollution therefore represented a serious danger, not merely an unpleasant smell or unusual sky color. Toxic smog affected millions across Indonesia, Singapore, and Malaysia, although the article gives no detailed list of health outcomes or restrictions.

Smoke from burning vegetation contains tiny particles and gases produced by combustion. The smallest particles can be inhaled deeply, irritating airways and making breathing harder. This is established air-pollution science; the article does not identify the smoke's exact chemical makeup. It does show the consequence clearly: toxic smog was choking millions.

Smoke can travel when winds move polluted air away from the fire zone. Large fires can release enough smoke to create a broad haze, and weather patterns can carry it across borders. In this case, wildfires continued in Indonesia's Kalimantan region, while haze affected Singapore and Malaysia as well as Indonesia.

The regional reach makes the episode more than a local fire problem. Palangka Raya was covered by thick orange smog, and the ISPU reading exceeded 1,200, compared with a hazardous level of 300. The article gives no details about wind direction or a timeline for clearing.