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- Title
The Applicability of the Local and International Water Quality Guidelines to Al-Gassim Region of Central Saudi Arabia.
- Authors
Al-Redhaiman, Khalid N.; Abdel Magid, Hago M.
- Abstract
The quality of 109 water samples, comprised of 70 drinking water and 39 irrigation water samples, in Al-Gassim Region of Saudi Arabia was investigated with respect to total dissolved salts (TDS), electric conductivity (EC), pH, total hardness and the major cations (Ca2+, Mg2+, Na+ and K+) and anions (Cl-, SO42-, NO3-, F- and HCO3-) beside coliform bacteria as an indicator of faecal contamination. The concentrations of TDS varied widely, from 109 to 6995 mg L-1, with a mean of 1427 mg L-1. Of the 109 water samples examined, 81 (74.3%) comply with the maximum permissible drinking water limits set by the local and international standards and guidelines and 28 (25.7%) were above the limits of these standards. The concentrations of the cations and anions (with the exception of NO3- and F-) follow, more or less, a trend similar to TDS. NO3- concentrations (range 0–30 mg L-1) comply with the limit of 50 mg L-1 NO3- as the highest tolerable NO3- content. The concentrations of F- in drinking water (range 0.2–1.5 mg L-1) are alarming since 88% of samples were below the lower permissible limit of 0.6 mg L-1 set by SASO (1984), the guideline of the WHO is 1.5 mg L-1 while the EEC maximum concentration lies within the range 0.7–1.5 mg L-1. Microbiological analyses showed negative coliform tests, which confirms that they are devoid of any faecal contamination.
- Subjects
AL-Gassim (Saudi Arabia); SAUDI Arabia; WATER quality; DRINKING water; WATER pollution; SALT deposits
- Publication
Water, Air & Soil Pollution, 2002, Vol 137, Issue 1-4, p235
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1023/A:1015550417199