Seasonal Variations in the Physico-chemical and Biological Characteristics of Al-Gharraf River within Al-Haay City Southern of Iraq.

Authors

  • Wisam Th. Al-Mayah Department of Soil and Water Resources, College of Agriculture, University of Wasit
  • Ali O. Shawardi Department of Basic Science, College of Dentistry, University of Wasit
  • Rasha M. Salman Department of Biology, College of Science, University of Wasit

DOI:

https://doi.org/10.31185/eduj.Vol1.Iss29.160

Keywords:

: physic – chemical and biological parameters, water quality, Al-Gharraf river.

Abstract

       The study reports the seasonal changes in water quality of Al-Gharraf, one of the main tributaries of the Tigris river. Monthly sampling was carried out from December 2015 till November 2016 for a year. The study location situated in the south-eastern sector of Iraq and surrounded by wide and fertile agricultural lands. Three stations were selected to. The former is located at 5 km before entrance of  AL-Hayy City  as control. The second is situated at distance 5 km away from the former (mid of  AL-Hayy City) represented study area and the latter station is located at 15 km apart from the second one (end of  AL-Hayy City). collecting  samples monthly ,two samples were taken each month.

      In the present study Fourteen physical and chemical parameters were analyzed based on the importance of these parameters. These Fourteen parameters are ranged as following: air temperature (16 to 32) ºC, water temperature (11 to 26) ºC, pH (7.05to 8.35), E.C.   (827 to1558) µS/cm, salinity ( 0.54 to 0.99) ppt, DO (7.04 to 10.38) mg/L , BOD ( 0.90 to 7.01) mg/L ,turbidity (31.0  to 177.0) NTU, TDS (550.78  to 1108) mg/L , TSS  (38 to 636.5) mg/L , T.H (275 to 520) mg/L , Cl- (95.9 to 213.7) mg/L, NO3 (15.4 to 25.0) mg/L and PO(0.15 to 0.59) mg/L. The results showed that most parameters are exceeding  permissible limits for Iraqi standard specifications and WHO standard for drinking.

      The study results also showed that the heavy metals concentrations (cadmium and lead) were 0.002-0.089 ppm and 0.031- 0.21 ppm respectively. Concentrations of these metals  of  Al-Gharraf  River showed seasonal variations during the study period and they  are  exceeding  permissible limits for Iraqi standard specifications and WHO standard for drinking.

The highest bacterial count was recorded at sit.2 the during winter 2016,  2800 cell /1 ml , whereas the lowest value was found during summer  2016,  320 cell /100ml. whereas numbers of  E.coli were (230-1700) cell/10ml.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

Published

2018-01-16

How to Cite

Al-Mayah, W. T., Shawardi, A. O., & Salman, R. M. (2018). Seasonal Variations in the Physico-chemical and Biological Characteristics of Al-Gharraf River within Al-Haay City Southern of Iraq. Journal of Education College Wasit University, 1(29), 390- 403. https://doi.org/10.31185/eduj.Vol1.Iss29.160

Issue

Section

Articles