Browsing by Author "Poh-Eng Lim"

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    Determination and speciation of heavy metals in sediments of the Juru River, Penang, Malaysia
    (Springer, 1995) Poh-Eng Lim; Mun-Yoon Kiu
    The Juru River flows through largely urbanized areas and is grossly polluted by domestic wastes and discharges from pig farms. Other than carrying highly polluting organic materials, these wastes are also contaminated with heavy metals. To ascertain the extent of heavy metal pollution in the river, total and non-residual concentrations of Cu, Pb, Zn, Mn and Fe in sediment samples collected along the river were determined.
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    Diurnal models of traffic-generated CO for Penang, Malaysia
    (Springer, 1991) Hock-Lye Koh; Poh-Eng Lim
    The existing traffic dispersal system is utterly inadequate to cope with the ever increasing number of cars and motorcycles on the road. The principal objective of this study is to build prediction models of CO to be employed as one of the planning tools in the future design of Penang urban traffic dispersal system. This study involves the monitoring of kerbside CO levels at selected sites and the fitting of hourly-averaged CO data to linear regression models incorporating the residual effect of CO emission due to traffic in the earlier periods and also different categories of vehicles.