Using wavelet transform on suspended particulate matter (PM10) and meteorological time series
Mokhtar Shaharuddin, Azami Zaharim, Mohd Jailani Mohd Nor, Othman A. Karim, Kamaruzzaman Sopian · International Conference on Applied Mathematics · 2007
Malaysia has experienced several haze periods since early 1980s in which suspended particulate matter (SPM) was the major components. The temporal variations observed are the result of interactions of various meteorological variables and pollutants emissions in different time scale. In order to study the relationship between particulate matter, temperature and rainfall, non-decimated wavelet transform is applied to the time series. The low frequency components of the temperature and rainfall showed significant relationship with PM10. The finding also support the suggestion that during the dry season one of the major sources of particles are from outside the country.