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. (Submitted)

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Abstract

Haze is defined as the presence of fine particles with diameter of 0.1 to 10 μm in the air which dispersed at high concentration caused white or brown vision (Soleiman et al., 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 sources of PM10 to Peninsular are usually from Sumatra, Indonesia. Kuching was 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 tremendous increased PM10 concentration. It happened in February to April in 2010. It is contributed by occurrence of El Nino and prolonged dry spells from year 2009 to 2010. Monsoon and El Nino are both important factors in determining the direction of haze and its intensity as monsoon changes the travelling path of pollutants and El Nino increases frequency of forest burning.

Item Type:Academic Exercise
Uncontrolled Keywords:Pollution , HYSPIT model , haze seldom , El Nino
Subjects:T Technology > TD Environmental technology. Sanitary engineering
Divisions:FACULTY > Faculty of Science and Natural Resources
ID Code:14785
Deposited By:IR Admin
Deposited On:15 Nov 2016 15:46
Last Modified:15 Nov 2016 15:46

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