Do tides affect water quality in the upper phreatic zone of a small oceanic island, Sipadan Island, Malaysia?

M. H. Abdullah, Mazlin Mokhtar, S. Hj Tahir, A. Bt Awaluddin

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Sipadan Island is a small oceanic island with limited storage of fresh groundwater. A study was carried out to determine the effect of tidal change on the groundwater quality of such an island using temperature, dissolved oxygen content, conductivity, salinity, and pH values as indicators. Overall, the results indicated that the groundwater quality changes with tides, but the trends of fluctuation differs between the observed parameters. It was found that the percentages of changes during the period of study were 0.8% (temperature), 53% (dissolved oxygen), 61% (conductivity), 58% (salinity), and 1.7% (pH) at the centre of the island; and 0.9% (temperature), 33% (dissolved oxygen), 40% (conductivity), 42% (salinity), and 9% (pH) at a station 120 m from the coast, based on 2.9-m and 2.8-m tidal ranges at each station.

Original languageEnglish
Pages (from-to)112-117
Number of pages6
JournalEnvironmental Geology
Volume29
Issue number1-2
DOIs
Publication statusPublished - Jan 1997

Fingerprint

phreatic zone
Tides
Dissolved oxygen
Malaysia
Water quality
tides
Groundwater
tide
water quality
dissolved oxygen
conductivity
salinity
groundwater
Temperature
temperature
tidal range
Coastal zones
coasts
coast
station

Keywords

  • Oceanic island
  • Tidal change
  • Upper phreatic zone
  • Water quality

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Environmental Science(all)
  • Environmental Chemistry
  • Water Science and Technology

Cite this

Do tides affect water quality in the upper phreatic zone of a small oceanic island, Sipadan Island, Malaysia? / Abdullah, M. H.; Mokhtar, Mazlin; Tahir, S. Hj; Awaluddin, A. Bt.

In: Environmental Geology, Vol. 29, No. 1-2, 01.1997, p. 112-117.

Research output: Contribution to journalArticle

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AU - Awaluddin, A. Bt

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AB - Sipadan Island is a small oceanic island with limited storage of fresh groundwater. A study was carried out to determine the effect of tidal change on the groundwater quality of such an island using temperature, dissolved oxygen content, conductivity, salinity, and pH values as indicators. Overall, the results indicated that the groundwater quality changes with tides, but the trends of fluctuation differs between the observed parameters. It was found that the percentages of changes during the period of study were 0.8% (temperature), 53% (dissolved oxygen), 61% (conductivity), 58% (salinity), and 1.7% (pH) at the centre of the island; and 0.9% (temperature), 33% (dissolved oxygen), 40% (conductivity), 42% (salinity), and 9% (pH) at a station 120 m from the coast, based on 2.9-m and 2.8-m tidal ranges at each station.

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