CONTAMINATION OF GROUNDWATER BY ORGANIC CHEMICALS IN AL-GASSIM REGION, SAUDI ARABIA. | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 8, Volume 27, Issue 11, November 2002, Page 7935-7942 PDF (7.75 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2002.255589 | ||||
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| Author | ||||
| S. S. AL-Oud | ||||
| Department of Soil and Water, College of Agriculture & Vet. Medicine King Saud University Branch, AI-Gassim, Buraydah, P. O. Box 1482' Saudi Arabia ' | ||||
| Abstract | ||||
| Twenty-five of water samples from different wells of different depths located in AJ- Gassim region of Central Saudi Arabia were analyzed sepctrophotometrically. The three fundamental bands characteristic of aromatic hydrocarbons nuclei 240-250 nm were recorded. However, the very slight difference in absorption is observed. This result may be may from solvent interaction, as the medium analyzed is an aqueous solution. Absorption shifts towards longer wavelength due to fusion of aromatic nuclei in polycyclic systems around 280 nm were also observed. The ground water samples exhibited pH values ranging from slightly alkaline to a strongly alkaline, and a wide range of EC (1.0 - 17.7 dS m"), The average cations content in water samples were 325.5, 186.9, 696.6, and 126.1 ppm for Ca, Mg. Na, and K, respectively. The total anions in water samples ranges from 19-2774, and 24-165 ppm. for HC03- and SOot , respectively. Polycydic aromatic hydrocarbons were detected in groundwater and the data were discussed in relation to the possibility of orgonic chemicals contamination by direct mixing of sewage water with underground water andlor leaching of agricultural chemical fertilizers and pesticides to reach the underground waterbed, | ||||
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