Sediment chemistry in mangrove area: Sediment profile of pH, sulphate and water soluble aluminium

Ng, Ling Pheng (2006) Sediment chemistry in mangrove area: Sediment profile of pH, sulphate and water soluble aluminium. Universiti Malaysia Sabah. (Unpublished)

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Abstract

The Salut-Mengkabong Lagoon is rich in marine life such as crabs, oysters, prawns and fish, among other river. Due to the increase of the human population of the Mengkabong villages, logging activities were carried out to accommodate the expansion of the villages as well as setting up of prawn and fishponds have contributed to the deterioration of environment and marine resources at SalutMengkabong. A study was carried out to investigate the physico-chemical parameter, The concentration of sulphate ( SO42-)and water soluble aluminium (AI) of sediment in Mengkabong Lagoon, in Tuaran District, Sabah. This is to understand the chemistry of mangrove sediment and these parameters were related to the depth distribution. The properties of mangrove sediments were compared between undisturbed and disturbed area. The undisturbed area was the area is no development was carried out and the mangroves species there were conserved and remain undisturbed. Moreover, it was located at the entrance of the path to the lagoon where seawater inflow influences in the sediments. Whereas, the disturbed area are defined as an area where the mangroves species were being disturbed. Also, it was situated behind a residential area and is least affected by seawater. The pH was analyzed using Mettler Toledo 320 pH meter with two calibration points (pH 4 & 7) after extraction in water. Concentration of SO42- was analyzed using UV Spectrophotometer by turbidimetric method. Water soluble Al was analyzed using Atomic Absorption Spectrometer (AAS) after extracted in water. The mean of pH was at a wide range which is from 6.37 to 7.33 for undisturbed and undisturbed area. The mean concentration of SO42- was at the range of 11.07 to 19.10 mgg-1. The concentration of water soluble Aluminium was very low in Mengkabong Lagoon which is in the range from 0.033 to 0.318 µgg-1

Item Type: Academic Exercise
Uncontrolled Keywords: water soluble aluminium, mangrove area, physico-chemical parameter, concentration of sulphate
Subjects: Q Science > QD Chemistry
Divisions: SCHOOL > School of Science and Technology
Depositing User: MDM SITI AZIZAH IDRIS
Date Deposited: 25 Jun 2013 04:15
Last Modified: 23 Oct 2017 04:51
URI: http://eprints.ums.edu.my/id/eprint/6406

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