Browsing by Author "Choon Weng Lee"

Now showing 1 - 4 of 4
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    Distribution of black carbon and PAHs in sediments of Peninsular Malaysia
    (Elsevier, 2021) Vahab Vaezzadeh; Xin Yi; Farah Rasyidah Rais; Chui Wei Bong; Margaret William Thomes; Choon Weng Lee; Mohamad Pauzi Zakaria; Ai Jun Wang; Guangcai Zhong; Gan Zhang
    Concentrations, sources and interactions between black carbon (BC) and polycyclic aromatic hydrocarbons (PAHs) were investigated in 42 sediment samples collected from riverine, coastal and shelf areas in Peninsular Malaysia.
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    Examination of barnacles potential to be used as bioindicators of persistent organic pollutants in coastal ecosystem: A Malaysia case study
    (Elsevier, 2021) Vahab Vaezzadeh; Margaret William Thomes; Tatsuya Kunisue; Nguyen Minh Tue; Gan Zhang; Mohamad Pauzi Zakaria; Yang Amri Affendi; Fook Choy Yap; Li Lee Chew; Hong Wooi Teoh; Choon Weng Lee; Chui Wei Bong
    This is the first study attempting to assess the suitability of barnacles as bioindicators of persistent organic pollutants (POPs) in coastal environments. Barnacles were collected from the coasts around Peninsular Malaysia and analyzed for POPs including polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and organochlorine pesticides (OCPs).
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    Influence of elevated river flow on hypoxia occurrence, nutrient concentration and microbial dynamics in a tropical estuary
    (Springer, 2020) Choon Weng Lee; Joon Hai Lim; Pei Li Heng; Nurul Fitrah Marican; Kumaran Narayanan; Edmund Ui Hang Sim; Chui Wei Bong
    We sampled the Klang estuary during the inter-monsoon and northeast monsoon period (July–Nov 2011, Oct–Nov 2012), which coincided with higher rainfall and elevated Klang River flow. The increased freshwater inflow into the estuary resulted in water column stratification that was observed during both sampling periods.
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    Nearshore and offshore comparison of marine water quality variables measured during SESMA 1
    (Universiti Malaya, 2008) Chui Wei Bong; Choon Weng Lee
    Total suspended solids (TSS), dissolved oxygen (DO) and dissolved inorganic nutrient concentrations [ammonium (NH4), nitrite (NO2), nitrate (NO3), phosphorus (PO4) and silicate (SiO4)] were measured in offshore sites covered by the first Scientific Expedition to the Straits of Malacca or SESMA 1 cruise. Both TSS and DO showed striking differences between nearshore and offshore sites.