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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."
Industrial-scale slash-and-burn practices to clear land for agricultural purposes are a major cause of the haze, particularly for palm oil and pulpwood production in the region. Burning land occurs as it is cheaper and faster compared to cutting and clearing using excavators or other machinery.
The haze first became a considerable disruption to daily life in Malaysia in April 1983. The cause of the haze is uncertain, which has led to speculation that suspended ash particulates from volcanic eruptions, suspended smoke particulates from large-scale forest fires, open agricultural burning in neighbouring countries, as well as local agricultural burning had caused the haze. [1]
The air quality in Malaysia is reported as the Air Pollution Index (API). Four of the index's pollutant components (i.e., carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide) are reported in ppmv but PM 10 particulate matter is reported in μg/m 3. This scale below shows the health classifications used by the Malaysian government. 0-50 Good
The fires became worse due to the effects of the 2014–16 El Niño event. [3] Natural Resource and Environment Minister Wan Junaidi Tuanku Jaafar said open burning by farmers are the main cause of the fire and haze.
A NASA satellite image of the haze on 19 June 2013. The extent of the haze as of 19 June 2013. [1] The extent of the haze as of 23 June 2013. [1]The 2013 Southeast Asian haze was a haze crisis that affected several countries in Southeast Asia, including Brunei, Indonesia, Malaysia, Singapore [2] and Southern Thailand, mainly during June and July 2013.
The 2015 Southeast Asian haze was an air pollution crisis affecting several countries in Southeast Asia, including Brunei, Indonesia (especially its islands of Sumatra and Borneo), Malaysia, Singapore, southern Thailand, Vietnam, Cambodia and the Philippines.
Satellite photograph of the haze above Borneo. The 2006 Southeast Asian haze was an air pollution event caused by continuous, uncontrolled burning from "slash and burn" cultivation in Indonesia, which affected several countries in the Southeast Asian region and beyond, including Malaysia, Singapore, southern Thailand, and as far away as Saipan; [1] the effects of the haze may have even spread ...