Physicochemical Analysis of Seawater on the East Coast of Doha.

The quality of seawater is very important for the state of Qatar as it is a peninsula. This paper is focused on the analysis of several physicochemical parameters, such as pH, Conductivity, Total Dissolved Solids (TDS), Turbidity, Alkalinity (M), Total Hardness, Silica, Sulphate, Iron, Nitrate, Phosphate, and Temperature from different sampling sites along major coastal areas on the East Coast of Qatar--namely the Doha Corniche, Al Khor, and Mesaieed. The results revealed that Qatari coastal waters contained typical values of each physicochemical parameter analyzed and were clean and unaffected by the risks of polluted waters or large-scale algal blooming. Across all nine samples, the pH values of the different water samples ranged from 7.7-7.9. Across all nine samples, the conductivity ranged from 57,590 to 64,960 µS/cm. Across all nine samples, the TDS readings ranged from 41110 - 43380 ppm. Across all nine samples, the turbidity ranged from 1 to 2.65 NTU. Across all nine samples, the alkalinity ranged from 110 to 127 ppm as CaCO₃. Across all nine samples, the hardness ranged from 6640 to 6515 ppm as CaCO₃. Across all nine samples, the Silica levels ranged from 0.15 to 0.23 ppm as Si. Across all nine samples, the sulfate levels ranged from 2140 to 2145 ppm as SO4. Across all nine samples, the iron levels ranged from 0.03 to 0.1 ppm as Fe⁺³. Across all nine samples, the nitrate levels ranged from 3.2 to 6.6 ppm as NO₃. Across all nine samples, the phosphate levels all read 0 ppm as PO4 (below the detection limit). Across all nine samples, the temperature levels ranged from 24 to 28.8°C. [ABSTRACT FROM AUTHOR]