Volume No. 5 Issue No.: 4 Page No.: 928-932 April-June 2011

 

DETERMINATION OF FLUORIDE CONCENTRATION IN SEAWATER OF DIFFERENT SHORES ALONG THE KARACHI, PAKISTAN

 

Sardar Alam Siddiqui1, Arshad Mahmood2 and Rashida Qari *3

1. International Centre for Chemical and Biological Sciences, University of Karachi, Karachi (Pakistan)
2. Centre of Excellence, Marine Biology, University of Karachi, Karachi (Pakistan)
3. Institute of Marine Science, University of Karachi, Karachi (Pakistan)

 

Received on : January 14, 2011

 

ABSTRACT

 

Fluoride concentration has been estimated in sea water from different coastal areas of Karachi (Korangi Creek, Clifton, Manora Island, Back water and salt work area of Sandspit, Hawks Bay, Buleji and Paradise Point). Fluoride concentration in seawater was ranged from 1.04-1.52 mg/l. The high concentration of fluoride in back water of Sandspit (1.36-1.52 mg/l) with high salinity (37 %o) was observed as compared to other shores water. The causes of high fluoride content in back waters of Sandspit due to these areas are connected with the Manora channel and are loaded with out fall of Layari River, effluents of S. I. T. E. area and domestic sewage treatment plant.

 

Keywords : Fluoride concentration, Karachi coast, Seawater, Back Water, Shores

 

 

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