Water Quality Assessment of Lake Manzala, Egypt: A Comparative Study

Elshemy, Mohamed

doi:10.12983/ijsres-2016-p0196-0207

Cited by 9 publications

(4 citation statements)

References 12 publications

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“…A similar result was proved by Elshemy [27] who stated that The water quality status of Lake Manzala has been assessed using two different water quality indices (L-WQI and NSF-WQI), based on collected water quality data at 15 stations in the lake and in the main drains. Based on the results, it can be concluded that the water quality status has a critical situation, according to L-WQI, and a very bad situation, in particular, at the southern and the eastern zones.…”

Section: Bacterial Pollutantssupporting

confidence: 63%

Environmental Damage Caused by Wastewater Discharge into the Lake Manzala in Egypt

Ahmed¹

2017

BIO

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Lake Manzala is a brackish lake in northeastern Egypt on the Nile Delta. It is the largest of the northern Delta lakes of Egypt. The Lake is exposed to high inputs of pollutants from industrial, domestic, and agricultural sources. Climate gases and large amounts of particulate matter, nutrients, bacteria, heavy metals, and toxic organics are transported to the Lake through the wastewater discharge. Water samples were collected and subjected to physicochemical analysis and microbiological study. Results have shown great changes in physical and chemical properties of water including: temperature (13.5°C in winter-32°C in summer), pH (7.8-9.2), dissolved oxygen (2.5-12.8 mgl-1), total dissolved solids (1033-43406 mgl-1), total suspended solids (120-387 mgl-1), ammonia (2.5-32.3 mgl-1), nitrite (0-0.076 mgl-1), nitrate (0.01-7.88 mgl-1), phosphate (0.26-2.37 mgl-1), Fe (0.01-0.63 mgl-1), Zn (0-0.35 mgl-1), Cu (0.01-0.91 mgl-1), Cn (0.002-0.029 mgl-1) and Ni (0-0.002 mgl-1). Results, also, showed a quit great density of total viable bacterial count and indicator organisms including total Coli forms, fecal coli forms, Aeromonas spp., Staphylococcus spp. and Vibrio spp. It is concluded that water in Lake Manzala is highly damaged and the phenomena need more attention in order to reduce the pollution load that reaches the Mediterranean Sea.

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Section: Bacterial Pollutantssupporting

confidence: 63%

Environmental Damage Caused by Wastewater Discharge into the Lake Manzala in Egypt

Ahmed¹

2017

BIO

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“…While, the lake is connected to the fresh water of the Nile River and Damietta Branch from the western and northwestern sides of the lake and reaches it a small flowing of water through the Al-Anania, Al-Soffra, and Al-Ratmah Canals. [3,4,8].…”

Section: Study Area Site Descriptionmentioning

confidence: 99%

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

Saleh

Beheary

Serag

2021

Alfarama Journal of Basic & Applied Sciences

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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 parameters 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, BOD, COD, sodium, chloride, total nitrogen, total phosphorus, Iron are above the permissible limit. In some years, the dissolved oxygen is below the permissible limit. The study results will be effective in Manzala lake environmental management.

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“…This index was used to assess the water quality condition of the Kücükcekmece Lagoon in Turkey, and to validate the index and the results showed a high correlation between this parameter and the observed WQ trends in the lagoon. The WQ status of Lake Manzala was assessed using the L-WQI and the NSF-WQI (M. Elshemy, 2016). The author recommended also using the L-WQI rather than the NSF-WQI in lagoons, due to its accurate assessment.…”

Section: Introductionmentioning

confidence: 99%

Water quality assessment of Lake Burullus, Egypt, utilizing statistical and GIS modeling as environmental hydrology applications

Mohsen

Zeidan

Elshemy

2022

Environ Monit Assess

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GIS is a very powerful tool for analyzing huge amount of data and connecting them with the geography, moreover recently there is great advancement in the eld. The main objective of this study is to assess the water quality (WQ) and trophic status (TS) conditions of Lake Burullus, Egypt, using statistical modeling (PCA/FA & CA), WQ index (L-WQI) and trophic status index (Carlson TSI & TRIX) approaches, in addition to using GIS tools for building models able to automatically calculate the various indices and producing color coded maps for the lake. The results indicated that PCA/FA grouped the twenty-four WQ parameters into nine principal components explaining 72.6% of the total variance, domestic and agriculture pollution were dominant. CA divided the twelve sampling stations into most and least polluted groups. The lake WQ was classi ed as a "Very Poor", according to L-WQI. Moreover, the results of the Carlson TSI and TRIX indices were coincided and classi ed the eutrophication levels in the lake as "Hyper-Eutrophic" and "Elevated Trophic", respectively. Based on the results of this study, Lake Burullus needs urgent plans for recovering its WQ. Pre-treatment for its drains e uents and implementing of a periodical WQ monitoring program are highly recommended.

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Water Quality Assessment of Lake Manzala, Egypt: A Comparative Study

Cited by 9 publications

References 12 publications

Environmental Damage Caused by Wastewater Discharge into the Lake Manzala in Egypt

Environmental Damage Caused by Wastewater Discharge into the Lake Manzala in Egypt

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

Water quality assessment of Lake Burullus, Egypt, utilizing statistical and GIS modeling as environmental hydrology applications

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