Water Quality Assessment for Sustainable Development of Lake Edku, Egypt | ||||
Engineering Research Journal (Shoubra) | ||||
Articles in Press, Accepted Manuscript, Available Online from 21 August 2025 | ||||
Document Type: Research articles | ||||
DOI: 10.21608/erjsh.2025.399423.1433 | ||||
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Authors | ||||
Alaa Nabil EL-HAZEK![]() ![]() ![]() ![]() ![]() | ||||
1ivil Engineering Department, Faculty of Engineering at Shoubra, Benha University, Cairo, Egypt. | ||||
2Deputy Director of Nile Research institute | ||||
Abstract | ||||
Lake Edku, located in Egypt's northern Nile Delta, faces significant water quality challenges due to extensive anthropogenic pressures. This study assessed water quality across multiple sampling locations via nine key parameters: Temperature, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Dissolved Oxygen (DO), Hydrogen Ion Concentration (pH), Salinity, Electrical Conductivity (EC), Total Nitrogen (TN), and Total Phosphorus (TP). Statistical analyses were performed to determine minimum, maximum, mean, and standard deviation values for each parameter, identifying their specific locations within the lake. Water Quality Index (WQI) analyses revealed deterioration in water quality in some locations across Lake Edku. It showed 31% of sites classified as Poor, while the rest locations were Good, with an overall average WQI of 46.78 (Good). The specific index, Lake Water Quality Index (L-WQI), provides another concerning perspective, with 69.23% of sampling points classified as Critical and 30.77% as Very Poor water quality. The overall average L-WQI of 27.46 falls within the Critical range, indicating that the lake's ecological functionality has been compromised. The deteriorated water quality primarily results from agricultural runoff and untreated wastewater discharge, leading to elevated nutrient levels and oxygen depletion. The study confirms the need for strategic conservation measures and improved water quality management to mitigate these environmental impacts. The research provides a comprehensive framework to support decision-making, facilitating the sustainable balance between regional development and environmental preservation in Lake Edku and similar coastal lake ecosystems. | ||||
Keywords | ||||
Water Quality Index (WQI); Lake-Water Quality Index (L-WQI); Coastal Lakes; Lake Pollution; Egyptian North Lakes | ||||
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