Wong Vui Chung @ Webster Wong (2006) Geostatistical mapping of heavy metals (Cd, Cr & Zn) distribution in the sediments of Salut Lagoon, Sabah. Masters thesis, Universiti Malaysia Sabah.
![[img]](https://eprints.ums.edu.my/style/images/fileicons/text.png) |
Text
24 PAGES.pdf Download (9MB) |
|
Text
FULLTEXT.pdf Restricted to Registered users only Download (53MB) |
Abstract
Fifty (50) geocoded surface sediment samples were taken from Salut Lagoon, which is situated about 15 km northeast of Kota Kinabalu, Sabah. These total sediments were analyzed by using Atomic Absorption Spectrometry method (AAS). The objective of this study was to assess the concentration and the spatial distribution of the heavy metal (Cd, Cr and Zn), and compare maps generated using geostatistical techniques i. e. ordinary and indicator kriging. Assessment on the concentration and spatial distribution of heavy metals in the surface sediments of Salut Lagoon showed that the mean concentration for Cd, Cr and Zn are 6.1 mg kg-1 , 15.5 mg kg-1 and 262 mg kg-1 respectively. The spatial distributions of the heavy metals in the surface sediments of Salut Lagoon are mainly control/ed by physico-chemical factors and landuse patterns. Considering the sedimentary geology of the area, and comparison with other areas indicates that the Salut Lagoon shows high levels of Cd and Zn in the surface sediments. Both ordinary and indicator kriging maps for Cd, Cr and Zn concentrations were generated. Indicator kriging maps have proven to be more robust and suitable for decision-making and heavy metals management purposes.
| Item Type: | Thesis (Masters) |
|---|---|
| Keyword: | Salut Lagoon, Surface sediments Heavy metals, Atomic Absorption Spectrometry, Geostatistical analysis |
| Subjects: | Q Science > QP Physiology > QP1-(981) Physiology > QP1-345 General Including influence of the environment |
| Department: | SCHOOL > School of Science and Technology |
| Depositing User: | DG MASNIAH AHMAD - |
| Date Deposited: | 23 Sep 2025 17:19 |
| Last Modified: | 23 Sep 2025 17:19 |
| URI: | https://eprints.ums.edu.my/id/eprint/45196 |
Actions (login required)
 |
View Item |