Anthropogenic activities that happen in Terengganu River were contributed to sediment pollution at that area. The sediment pollution occurred when sediment are additional influenced with chemical adsorption between the metals, grain size, and organic matter. Thus, this study was conducted to assess the metal pollution using Enrichment Factor (EF) and Pollution Load Index (PLI) and compared with the previous study. A total of 15 sediment samples were collected from 5 different rives and metal concentration were analyzed using flame Atomic Absorption Spectrometer (ASS). The metal concentration ranged as followed: Cr (0.48-12.80 mg/kg), Cu (0.38-15.20 mg/kg), Mg (202.00-2769.00mg/kg), K (63.36-1730.00 mg/kg), Mn (4.27-33.70 mg/kg), Zn (2.05-31.30 mg/kg) and Cl (141.00-584.00 mg/kg) respectively. Enrichment Factor (EF) and Pollution Load Index (PLI) were used as a pollution indicator to access the sediment pollution in selected Terengganu Rivers. The mean Enrichment Factor (EF) value indicated in decrease order Cl (34.70) > Zn (23.44) > Cu (10.37) > Cr (1.95) > K (1.58) > Mg (1.16)> Mn (0.87). Meanwhile, Pollution Load Index (PLI) value showed below than 1 in all sampling stations. When compared with previous study, Mg and Cl metals need to take further action due to dramatically increased within seven years. The output from this study will be useful for environmental management at Terengganu Rivers.
Rafflesia, the biggest flowers in the world are considered as majestic and are made as ecotourism icons for several places in the South East Asia. Currently, a total of 34 species of Rafflesia were recorded in this region. 7 species of Rafflesia are found in Peninsular Malaysia alone. This study was executed in Royal Belum State Park in the state of Perak. An updated on distribution of Rafflesia and its ecology are provided. The Rafflesia population was mapped using Global Positioning System [GPS]. While the size of Rafflesia host-plant was measured with the measuring tape and the amount of rainfall was obtained from the Meteorological Department of Malaysia. During this study, there were 2 species of Rafflesia encountered in Royal Belum State Park, namely Rafflesia cantleyi Solms-Laubach and Rafflesia kerri Meijer. The species were recorded at X-Ray trail, Sg. Gadong, and Sg. Kooi. A total of 8 populations were set up from these locations. It was found that the population and the distribution decreased in accordance with the habitat interruption by human intervention and natural factors such as wildlife trampling on the immature buds. Besides, it was found that the number of Rafflesia buds increases with the class size for host-plant of Rafflesia with coefficients of determination of R 2 =0.9866. However, various physiological and environmental factors were taken into consideration in efforts of conserving this unique flower. This study is important in order to preserve the population of Rafflesia at Royal Belum State Park.
Rapid development of industrialization and urbanization along Sungai Kerteh and Sungai Pakawas become a problem due to metal pollution. Namely, anthropogenic activities nearby SungaiKerteh and Sungai Paka were contributed to heavy metals pollution into those rivers. The aims forthis study were to determine the selected heavy metals contamination in water samples andcompared with National Water Quality Standard for Malaysia (NWQS). A total of 8 watersamples were collected from both rivers and heavy metal concentration were analyzed usingflame Atomic Absorption Spectroscopy (ASS). Four parameters of physical chemical propertieswere also analyzed which are pH, temperature, dissolved oxygen and turbidity. The ranges ofphysical chemical properties are pH (7.84-8.78), temperature (31.20 -38.70 oC), dissolved oxygen(27.90-107.20%) and turbidity (1.83-10.5 NTU) respectively. The mean of heavy metalsconcentration was ranged as followed; As (2323.00 ug/L) > Hg (571.93 ug/L) > Pb (402.13 ug/L)> Zn (87.13 ug/L) >Cr (74.63 ug/L) > Cu (48.50 ug/L) > Ni (17.25 ug/L) > Cd (11.38 ug/L).When compared with NWQS, most of metals (Cu, Pb, Ni and Zn) are below the NWQS thresholdlimit except As, Cd, Cr and Hg. The output data from this study can be used as database forcontinuous monitoring at both rivers.
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