| Summary: | The objectives of this work were to analyse the monthly variation of the
concentration of airborne PM10; characterise the chemical composition and
morphology of PM10 and identify the sources of the PM10 of year 2006 in Malaysia.
The concentrations and samples of PM10 of year 2006 at 6 stations (Bayan Lepas,
Petaling Jaya, Kuantan, Senai, Kuching and Kota Kinabalu), satellite and
meteorological data were collected from different departments (DOE and MMO) and
websites (NASA - FIRMS Web Fire mapper and Live Access Server (LAS) NOAA PMEL) .
to carry out the analysis. The analysis for chemical composition (Mg, K, Ca, Zn and
Fe) and morphology (shape, surface and aerodynamic diameter) of the sample PM10
were carried out by using ICP-OES and SEM-EDX respectively. The sources of the
PM10 were identified by using HYSPLIT-WEB model. From July to October (southwest
monsoon), the concentration of PM10 was comparatively higher than the other
months and also exceeded the RMAAQ, therefore, was defined as hazy episode and
the others were non-hazy episode. The concentration of the selected elements in the
sample of PM10 was found varied between non-hazy and hazy episodes at different
station. The highest concentration of the selected element is potassium (K) which is
mainly come from biomass burning and crustal sources during both non-hazy and
hazy episode. The morphology of the particles in terms of shape and surface are vary
largely although the elemental composition of the particles are similar. The sources
of the PM10, the PM10 at most of the stations were found came from both long-range
and short-range trans-boundary air pollution.
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