عرض تفاصيل البحث
|
|||||
| Assessment of Water Quality of the Northern Delta Lakes, Egypt / | |||||
| تخصص البحث : Basic Sciences | |||||
| Mansoura Journal of Environmental Sciences - Egypt JOESE / Vol.46 No.1 - March 2017 | |||||
| Hazem Taha Abd El Hamid - مؤلف رئيسي | |||||
| Talaat A. Hegazy | |||||
| Mahmoud S. Ibrahim | |||||
| Khalid M. El-Moselhy | |||||
| Keywords: Water quality, Northern Delta Lakes, Egypt, WQI, TSI. | |||||
| Abstract The northern delta lakes are exposed to huge amounts of drainage water containing organic and inorganic pollutants. Due to excessive nutrients, especially nitrogen and phosphorus, these water bodies are able to support an abundance of undesirable aquatic plants causing eutrophication and deterioration of their water quality. So we aimed to study the water quality and trophic state based on two principal indexes namely water quality index (WQI) and trophic state index (TSI). Ten representative surface water samples were collected from each lake for determination of physicochemical parameters (i.e. pH, salinity, DO, nutrients “reactive phosphorus, reactive silicate, nitrate, nitrite, chlorophyll a and ammonia”, Total alkalinity and total hardness). Variations in nutrient concentrations are directly related to agricultural and industrial wastes which can be thrown directly or indirectly in the lakes. from the calculations of WQI, the lakes were categorized into bad and poor water quality. While the trophic state is ranked to eutrophic and hyper-eutrophic conditions. These may due to excessive drainage water from different sources either from agricultural, industrial or sewage water. It is highly recommended that drainage water should be treated, removing of unwanted plants and providing decision makers with data. |
|||||
 Download Paper |