Heavy Metals Pollution in Surface Water and Sediment of Lower Cross River System in Akwa Ibom State, igeria.


  • S. A. Odoemelam Michael Okpara University of Agriculture Umudike, Abia State, Nigeria
  • A. M. Udongwo Akwa Ibom State College of ducation Afaha Nsit, Akwa Ibom State, Nigeria


Pollution, heavy metals, surface water, sediment, Cross River


Communication in Physical Sciences 2020, 5(2): 117-123

Authors: S.A. Odoemelam, A.M. Udongwo and I. A. Okoro

Received 05 March 2020/Accepted 20 April 2020

This study analyzed some heavy metals in surface water and sediment from Cross River system in Akwa Ibom State, Nigeria. Water and sediment samples were collected from Ibaka, Oron, Nwaniba, Ayadehe, Okopedi and Enwang and analyzed for the concentration of some heavy metal ions using atomic absorption spectrophotometer. The results obtained from the analysis indicated that mean concentrations of Cd, Pb, Cr, Co, Cu, Se and Ni in surface water were 13.69±8.97, 20.53±10.60, 18±11.47, 25.81±13.91, 26.9±11.0 1.18±0.32 and 32.67±26.16 g while the corresponding mean concentrations in the sediments were 0.52±0.24, 57.78±15.60, 16.22±5.48, 7.52±2.28, 69.81±16.90, 0.75±0.44 and 6.87±2.26 g/g, respectively. The results of surface water and sediment quality were compared with some guidelines which revealed no serious contamination risk to man and aquatic organism for surface water and some degree of contamination at some stations for the metals under study in sediment samples


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Author Biographies

S. A. Odoemelam , Michael Okpara University of Agriculture Umudike, Abia State, Nigeria

Department of Chemistry

A. M. Udongwo , Akwa Ibom State College of ducation Afaha Nsit, Akwa Ibom State, Nigeria

Department of Chemistry


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