Fluctuation contents of phosphorus and natural radionuclide in the water column of the mersing river, Johor, Malaysia

Noor Affizah Bujang Saili, Che Abd. Rahim Mohamed

Research output: Contribution to journalArticle

Abstract

Studies on natural radionuclides such as 210Po and 210Pb with the concentration of phosphorus in water column related to suspended particulate matter (SPM) were carried out at the Mersing River, Johor, Malaysia. Sixteen water samples were collected from nine stations on the 4th July 2010. 210Po and 210Pb activities varied between 0.76 to 2.24 mBq/L and 0.16 to 1.60 mBq/L respectively. The phosphorus concentrations, comprising total dissolved phosphorus (TDP), soluble reactive phosphorus (SRP) and dissolved organic phosphorus (DOP), were within the ranges of 6.06 to 23.31 μg/L, 2.24 to 13.42 μg/L and 0.47 to 16.10 μg/L, respectively. The concentration of TDP and salinity shows weak positive correlation (r = 0.39), perhaps due to the shallow depth of the Mersing River. There is a high positive correlation (r = 0.85) of 210Po activity with SPM concentration and a moderately positive correlation (r = 0.59) of 210Po and TDP in water. The Kd values in suspended particulate matter are much higher compare to that in dissolved phase, proving that the adsorption of radionuclides to particles is more dominant This implies that SPM significantly influences the variation of the P compound and both radionuclides in the Mersing River. This corresponds with agricultural activities from palm oil estates; erosion of the river bank due to river runoff; advection of suspended particulates from surface sediment due to boat and ferry traffic at the jetties; sedimentation; domestic sewage from nearby terrestrial areas; and natural processes; all of which might have resulted in their introduction to the Mersing River.

Original languageEnglish
Pages (from-to)603-613
Number of pages11
JournalPollution Research
Volume32
Issue number3
Publication statusPublished - 2013

Fingerprint

Radioisotopes
Phosphorus
radionuclide
water column
Rivers
suspended particulate matter
phosphorus
river
Water
dissolved organic phosphorus
Jetties
river bank
Banks (bodies of water)
Palm oil
Advection
Boats
Sewage
Runoff
Sedimentation
advection

Keywords

  • Pb
  • Po
  • Phosphorus
  • Suspended particulate matter
  • Water column

ASJC Scopus subject areas

  • Water Science and Technology
  • Pollution

Cite this

Fluctuation contents of phosphorus and natural radionuclide in the water column of the mersing river, Johor, Malaysia. / Saili, Noor Affizah Bujang; Mohamed, Che Abd. Rahim.

In: Pollution Research, Vol. 32, No. 3, 2013, p. 603-613.

Research output: Contribution to journalArticle

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