The Current Status and the Long-Term Variations of Water Quality in Lake Manzala, Egypt
Serag, M., Saleh, E., Beheary, M. (2022). The Current Status and the Long-Term Variations of Water Quality in Lake Manzala, Egypt. EKB Journal Management System, 3(1), 152-162. doi: 10.21608/ajbas.2021.80582.1055
Mamdouh Salem Serag; Eman Mohamed Saleh; Mokhtar S. Beheary. "The Current Status and the Long-Term Variations of Water Quality in Lake Manzala, Egypt". EKB Journal Management System, 3, 1, 2022, 152-162. doi: 10.21608/ajbas.2021.80582.1055
Serag, M., Saleh, E., Beheary, M. (2022). 'The Current Status and the Long-Term Variations of Water Quality in Lake Manzala, Egypt', EKB Journal Management System, 3(1), pp. 152-162. doi: 10.21608/ajbas.2021.80582.1055
Serag, M., Saleh, E., Beheary, M. The Current Status and the Long-Term Variations of Water Quality in Lake Manzala, Egypt. EKB Journal Management System, 2022; 3(1): 152-162. doi: 10.21608/ajbas.2021.80582.1055

The Current Status and the Long-Term Variations of Water Quality in Lake Manzala, Egypt

Alfarama Journal of Basic & Applied Sciences
Article 13, Volume 3, Issue 1, January 2022, Page 152-162  XML PDF (640.29 K)
Document Type: Original Article
DOI: 10.21608/ajbas.2021.80582.1055
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Authors
Mamdouh Salem Serag1; Eman Mohamed Saleh email 2; Mokhtar S. Beheary3
1Botany and Microbiology Department, Faculty of Science,Damietta University, Egypt
2Environmental Sciences, faculty of Science, Port-Said University
3Environmental Sciences Department, Faculty of Science, Port Said University, Port Said, Egypt
Abstract
This study aimed to shed light on the long-term current state and variations of Lake Manzala water quality by some chemical, physical, and biological properties as: temperature, pH, total solids, hardness, sodium, chlorides, total nitrogen, total phosphorous, dissolved oxygen, biological oxygen demand, chemical oxygen demand, iron, manganese, total bacteria count, and faecal coliform count. Comparing results obtained with the limit of the Environmental Protection Agency for water body health showed the following: The mean of temperature and pH are within the permissible limits. Manganese is almost within the permissible limits, but in 2005, it was slightly above the permissible limit. The mean of total solids, hardness, biological oxygen demand, chemical oxygen demand, sodium, chloride, total nitrogen, total phosphorus, Iron are above the permissible limit. In some years, the dissolved oxygen is below the permissible limit. The results obtained will be useful for the optimal management of Lake Manzala as well as for a better view of its current situation.
Keywords
Lake Manzala; long-term; permissible limit; variations; water quality
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