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2019 Southeast Asian haze

Smoke haze over the Southeast Asia region

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Through Air pollution, Singapore and Plantation

Thailand began to experience a haze in February that lasted until May, peaking in March and April. Indonesia began to experience haze between June and July. Malaysia was affected from August, while Singapore, Brunei, and Vietnam experienced haze in September.

It was the latest occurrence of the Southeast Asian haze, a long-term issue that occurs in varying intensity during every dry season in the region. It was mainly caused by forest fires resulting from illegal slash-and-burn clearing performed on behalf of the palm oil industry in Indonesia, principally on the islands of Sumatra and Borneo, which then spread quickly in the dry season.

Background and causes

Northern ASEAN nations

Most of the hotspots for the northern countries of South East Asia (Thailand, Myanmar, Cambodia, Laos, Vietnam, and the Philippines) occurred from January to May 2019, particularly in March and April 2019.

There have been fires in forested lands in northern Thailand with farmlands in Pa Phru Kuan Kreng of Nakhon Si Thammarat Province in southern Thailand.

Southern ASEAN nations

Forest fires in Indonesia cause the trans-boundary haze in Indonesia, Malaysia, and Singapore almost every year. These fires clear land for palm oil plantations, and are known to be started by smallholding subcontractors who supply large companies that claim to discourage the practice but admit the chain of custody is a "complicated web." This web is further complicated by the fact that financing of oil palm industries come from numerous banks. Most of these banks are from Asia, including Singapore, Malaysia and Indonesia, that have funded billions of dollars towards deforestation for oil palm and pulp and paper industries.

In 2019, fires have been burning in multiple provinces of Sumatra and Kalimantan within Indonesia. These regions possess large areas of peatland, which is highly combustible during the dry season. Peatlands in these areas are extremely vulnerable to combustion because they are originally wetlands and rarely ever burn. However, these peatlands are drained and dried for agriculture use, making them extremely susceptible to burning. Peat, which is made up of layers of dead vegetation and other organic matter, contributes heavily to carbon emissions when it is burnt, because of its high density and carbon content.

According to the Asean Specialised Meteorological Centre, most of the hotspots for Indonesia and Malaysia occurred in August and September 2019. As of September 2019, Indonesia has had a total of over 20,000 hotspots in 2019, while Malaysia has had over 2,000 hotspots. On 12 September 2019 alone, there were 1,188 hot spots in Kalimantan provinces and 431 hot spots in Sumatra provinces.

In June 2019, forest fires in the Malaysian state of Sarawak on the island of Borneo resulted in the Malaysian city of Miri being affected by haze.

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