Evaluation of Some Pollution at Manzala Lagoon: Special Reference to Medical Importance of Mollusca in Egypt

Orabi, Orabi H.; Osman, Mahmoud F

doi:10.4172/2161-0525.1000311

Cited by 8 publications

(4 citation statements)

References 8 publications

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“…Although, several recent studies have reported levels of heavy metals in Lake Manzala compared with the UPLs [17, 18, 19], none have evaluated the pollution risk in terms of pollution indices. The local authorities are currently launching an ambitious project to develop and rehabilitate the lake to meet standards for a clean environment by 2020 and it is necessary to describe the pollution status prior to this project as a baseline for comparison.…”

Section: Introductionmentioning

confidence: 99%

Distribution of essential heavy metals in the aquatic ecosystem of Lake Manzala, Egypt

Elmorsi

Abou‐El‐Sherbini

Mostafa

et al. 2019

Heliyon

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Lake Manzala is the largest and most productive lake of Egypt's northern coastal lakes and has socio-economic impacts. Pollution by heavy metals is the most significant type of pollution worldwide, particularly in Lake Manzala, which receives mixed discharges from densely populated areas. Water samples were collected at twelve sites around the lake in winter and summer of 2015. Samples of Eichhornia crassipes were collected in the winter, and Oreochromis niloticus samples were collected at two sites (8 and 10). V, Cr, Mn, Fe, Co, Ni, Cu, and Zn were analysed in these samples using inductively coupled plasma-mass spectrometry. The average metal concentrations were below the internationally accepted upper permissible limits and are improved compared to those in previous studies. However, the metal concentrations at the eastern and southeastern sites were higher than the allowable limits due to multiple waste discharges. Pollution assessment using pollution risk indicators indicated low to moderate concentrations of metal enrichment in the sediment and biota of the lake, except at sites near the eastern and southeastern drains; these latter sites were considered to be hazardous and should be taken into account in the current development efforts of the lake. Complete removal of floating plants transported by drains is recommended .

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Section: Introductionmentioning

confidence: 99%

Distribution of essential heavy metals in the aquatic ecosystem of Lake Manzala, Egypt

Elmorsi

Abou‐El‐Sherbini

Mostafa

et al. 2019

Heliyon

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“…Thus, based on the preceding facts, we show that CLs offer environmental, social, and economic services for human wellbeing [2,[37][38][39][40][41][42]. Due to this fact, CLs are permanently threatened by human activities, thus exerting pressures on the quality state of these water bodies, where the increase in human settlements and tourist developments are considered as significant indirect drive factors that contribute to the vulnerability of these water bodies to a considerable extent [43][44][45]. The reduction in nitrogen (N) and phosphorus (P) is proposed to obtain adequate levels of water quality on the Mediterranean coast, where the cultural eutrophication became a serious problem [46].…”

Section: Introductionmentioning

confidence: 78%

Feasibility Analysis of the Sustainability of the Tres Palos Coastal Lagoon: A Multifactorial Approach

et al. 2021

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We studied the cultural eutrophication process assessments of coastal lagoons by considering sociopolitical, socioeconomic, demographic, technological, and cultural factors, which represent indirect drivers exerting effects on the eutrophication process, causing changes on the trophic status. Multifactorial interactions in eutrophication processes make understanding their complex dynamics difficult, leading to unreliable assessments and, consequently, to unsustainable management actions. This, in turn, hinders the feasibility of coastal lagoon sustainability. We propose a method based on the evaluation of pathways derived from a multifactorial network, which represents the eutrophication process, with the aim of determining the feasibility of the sustainability of the Tres Palos coastal lagoon. Our findings revealed that most of the evaluations of relationships belonging to pathways were unfeasible due to reasons such as: there was no evidence of the existence of public policies, technological skills, and cultural factors; there was a lack of data related to human settlements around the lagoon and river, industrial waste, agricultural practices, and tourism. The preceding shortcomings hinder the feasibility of coastal lagoon sustainability under study. We suggest that assessments of cultural eutrophication processes that overlook sociopolitical, socioeconomic, technological, and cultural factors are limited and inadequate for supporting the feasibility of sustainable coastal lagoons.

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“…The water quality and pollution of El-Manzala lake has been the objective of many authors El-Wakeel and Wahby [1], Abdel-Mouti [2], Abdel-Mout and Dowidar [3], El-Sabrouti [4], Hussein [5], AbdelSatar [6], Dewidar and Khedr [7], Lotfy [8,9], Abdalla [10], Orabi [11].…”

Section: Pollution Sourcesmentioning

confidence: 99%

Distribution of Heavy Metals in Contaminated Water and Bottom Deposits of Manzala Lake, Egypt

El-Badry¹

2016

J Environ Anal Toxicol

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Evaluation of Some Pollution at Manzala Lagoon: Special Reference to Medical Importance of Mollusca in Egypt

Cited by 8 publications

References 8 publications

Distribution of essential heavy metals in the aquatic ecosystem of Lake Manzala, Egypt

Distribution of essential heavy metals in the aquatic ecosystem of Lake Manzala, Egypt

Feasibility Analysis of the Sustainability of the Tres Palos Coastal Lagoon: A Multifactorial Approach

Distribution of Heavy Metals in Contaminated Water and Bottom Deposits of Manzala Lake, Egypt

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