Seasonal variations and potential sources of PM10 in Malaysia

Ngu, Joyce,Shu Hui (2014) Seasonal variations and potential sources of PM10 in Malaysia. Universiti Malaysia Sabah. (Unpublished)

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Abstract

"Haze is defined as the presence of fine particles with diameter of 0.1 to 10 pm in the air which dispersed at high concentration caused white or brown vision (Soleiman et at.., 2003) and majority containing particulate matter (Rahman, 2013). The haze episodes and incidents were severe over the Southeast Asia including Malaysia since the late 1980s. This research is to analyze occurrence of haze in Malaysia and backward tracking its sources at the specific suspected period. Pollution hotspot and seasonal monsoon were used to further explain and clarify the haze period. HYSPIT model was used as backward trajectory software and four different stations with geographical locations were selected which are Kuala Lumpur, Pahang, Kuching, and Kota Kinabalu. In my findings, haze seldom happened in Kota Kinabalu but it was frequently seen in Peninsular Malaysia. Haze period and pattern in Peninsular Malaysia was similar where it usually happened during period of summer monsoon. The sourceso f PM10to Peninsulara re usuallyf rom Sumatra, Indonesia. Kuchingw as observed with few haze outbreaks which is in January to March (2008) and July to September (2009 & 2010). For Kota Kinabalu, a period of time was found with tremendousi ncreasedP M10c oncentration.I t happenedi n Februaryt o April in 2010. It is contributed by occurrence of EI Nino and prolonged dry spells from year 2009 to 2010. Monsoon and EI Nino are both important factors in determining the direction of haze and its intensity as monsoon changes the travelling path of pollutants and EI Nino increasesfr equency of forest burning."

Item Type: Academic Exercise
Uncontrolled Keywords: Haze, polluction
Subjects: Q Science > Q Science (General)
Divisions: FACULTY > Faculty of Science and Natural Resources
Depositing User: Noraini
Date Deposited: 27 Nov 2017 02:01
Last Modified: 27 Nov 2017 02:01
URI: http://eprints.ums.edu.my/id/eprint/17664

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