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2011 (Vol. 3, Issue: 4)
Article Information:

The Physical and Chemical Condition of Sombreiro River, Niger Delta, Nigeria

E.N. Ezekiel, A.I. Hart and J.F.N. Abowei
Corresponding Author:  Abowei Jasper 

Key words:  Physical and chemical characteristics, Sombreiro River, Niger Delta, Nigeria, , ,
Vol. 3 , (4): 327-340
Submitted Accepted Published
2011 January, 05 2011 February, 07 2011 June, 05
Abstract:

The physical and chemical condition of Sombreiro River in the Niger Delta area of Nigeria was studied for a period of two years (August, 2007-July, 2009). The mean temperature values varied from 28.021.03C (Odiemudie) to 28.310.96C (Ogbele). There was a steady trend of water temperature across the stations with a mean of 28.190.77. The wet season mean water temperature ranged from 27.85 to 28.15C while the dry season ranged from 28.35 to 29.21C. The mean pH values varied from 6.330.31 (Ihuaba) to 6.500.26 (Ogbele). The pH of station 4 (Odiemudie) 6.50 is significantly different p<0.01. There was no significant difference between the pH of stations 2 and 3 at p<0.01. The pH values were stable across the stations and within sampling years. The mean pH for the study period across the stations was 6.400.25. The wet season pH ranged from 6.38-6.52 while the dry season pH ranged from 6.10-6.45. The mean salinity values ranged from 0.0 (Ihuaba and Odiemudie) to 7.672.63 (Degema) and values were significantly different (p<0.01) among the stations. The salinity trend was brackish at station 1 (Degema) and fresh stations 2-4. The mean value of the salinity across the stations was 1.960.96. The wet season salinity ranged from 0.11- 6.66 while the dry season salinity ranged from 0.25-10.11. The mean DO values at the stations ranged from 6.840.08 mg/L (Degema) and 7.130.41 mg/L (Ogbele) with a mean of 7.0 mg/L. The DO value of station 2 (7.130.41 mg/L) was the highest and significant at p<0.01. This was followed by station 1 (Degema) 7.020.39 mg/L. Stations 3 and 4 had the same value of 6.960.23 mg/L. The wet season DO ranged from 6.94- 7.14 mg/L while the dry season DO ranged from 6.60-7.13 mg/L. The mean BOD values ranged from 2.120.70 mg/L (Degema) and 2.460.54 mg/L (Ogbele). Station 1 (Degema) had the least value of 2.120.70 mg/L and is significantly different from stations 2, 3 and 4 at p<0.01). The mean BOD value across the stations was 2.370.44 mg/L. The wet season had a higher value of 2.430.01 mg/L while the dry seasons had a value 2.200.05 mg/L. The wet ranged from 2.02-2.61 mg/L while the dry season ranged from 2.11-2.35 mg/L. The mean conductivity values of the stations varied from 16.392.96 μS/cm (Odiemudie) to 18730.5889.95 μS/cm (Degema) with the Degema value showing great significant difference at p<0.01). The conductivity values for stations 2, 3, and 4 showed no significant difference. The mean conductivity value across the stations was 4695.862885.24 μS/cm. The wet season had a mean of 4816.22945.23 μS/cm while the range was from 15.00-19215.4 μS/cm. For the dry season the values were from 19.6117553.2 μS/cm.
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  Cite this Reference:
E.N. Ezekiel, A.I. Hart and J.F.N. Abowei, 2011. The Physical and Chemical Condition of Sombreiro River, Niger Delta, Nigeria.  Research Journal of Environmental and Earth Sciences, 3(4): 327-340.
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ISSN (Online):  2041-0492
ISSN (Print):   2041-0484
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