Determination of Some Heavy Metals in water of the Southern Region of Lake Manzala, Egypt

Hegazy, Wael H.; Hamed, Mohamed A.; Toufeek, M. E. S.; Mabrouk, Bazada K. A.

doi:10.21608/ejabf.2016.11179

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…The lake gains drainage water from six major heavily polluted drains, Bahr El-Baqar, Hadous, El-Serw, Ramsis, Mataria, and Faraskur, with a total discharge of about 4000 million m 3 /year (Hegazy et al, 2016 ). The Bahr El-Baqar drain and Hadous present about 75% of the total waste input into Manzala Lake, with pollution sources from treated and raw industrial wastewater, sewage, and drainage of some agricultural areas (Stahl et al, 2009 ; Mohamedein et al, 2018 ; Elsaeed et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Heavy metal pollution in Manzala Lake sediments, Egypt: sources, variability, and assessment

Redwan

Elhaddad

2022

Environ Monit Assess

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The environmental pollution of lake systems due to anthropogenic factors is of growing concern worldwide. Manzala Lake is the largest northern coastal-deltaic lakes of Egypt and has socioeconomic impacts. In this study, the concentrations and origins of seven heavy metals (HMs) and the organic content in the Manzala Lake sediments were explored during the winter and summer. The concentration of the HMs and the organic content were quantified using inductively coupled plasma and loss-on-ignition techniques. Pearson’s correlation coefficient (PCC) and principal component analysis (PCA) were applied to evaluate the sources of the metals in the sediments. The HMs and organic matter were enriched during the winter season. The average concentrations of the HMs in the sediments conformed to the following sequence: Fe (14.13) > Mn (0.8) > Cu (0.11) > Zn (0.11) > Ni (0.06) > Pb (0.5) > Cd (0.002) (mg/kg). Sediment quality protocols showed that Mn, Cd, Cu, and Ni pose a significant threat to the aquatic environment in Manzala Lake. The geoaccumulation index (Igeo) values indicated pollution of the sediments with most metals, excluding Fe and Ni. The periodic mean Igeo pollution level followed the sequence Cd > Cu > Zn > Mn > Pb > Ni > Fe. The greatest pollution load index noted during the winter season was principally induced by Cd and Cu. The overall ecological risk index was moderate, with Cd being the most prominent HM. PCA combined with PCC showed that the HM enrichments in the southern (Bahr Al-Baqar Drain [S1], Bashteer [S3], Legan [S5], and Al-Ginka [S8]) and the extreme northeastern (El-Qapouti [S6]) parts of Manzala Lake sediments were mainly due to the discharge from different drains (industrial, agricultural, and municipal wastes) and the industrial region in Port Said, respectively. The lower HM concentrations from the extreme northern parts (Al-Boghaz [S2], Al-Temsah [S4], Al-Hamra [S7], and Al-Kowar [S9]) were due to their isolation from urban areas compared with the other localities. Extensive waste disposal was responsible for the HM pollution in the Manzala Lake sediments. Advanced treatment technologies and monitoring of the pollution in the water and sediments of Manzala Lake are required to decrease the accumulation of the heavy metals.

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Section: Introductionmentioning

confidence: 99%

Heavy metal pollution in Manzala Lake sediments, Egypt: sources, variability, and assessment

Redwan

Elhaddad

2022

Environ Monit Assess

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“…Heavy metal pollution from domestic sewage discharge can impact the growth and health of aquatic flora, including macrophytes and algae [47], [48]. The presence of heavy metals in the water and sediments can also affect the nutrient composition and physiological processes of aquatic plants [48].…”

Section: Impacts On Aquatic Floramentioning

confidence: 99%

Impact of Sewage Treatment Plant Effluent on Lakes: An Overview

2024

IRJMETS

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The paper discusses a literature survey of the Impact of Sewage Treatment Plant (STP) effluents on surface water bodies in the special context of lakes and ponds. The sewage effluent even after conventional treatment has residual pollutants such as Organic Matter, Heavy Metals, Nutrients, and Emerging Contaminants such as Nanomaterial, PPCPs, EDCs, Microplastics, etc., which can have various negative impacts on aquatic ecosystems and human health. These pollutants can cause Eutrophication, Oxygen depletion, and toxicity in waterbodies posing a significant threat to the delicate balance of aquatic ecosystems. Further, they can harm biodiversity, induce population and behavioral shifts, cause Endocrine disruption, disrupt the food chain, and elevate the risk of antibiotic resistance, hence affecting aquatic Flora, Fauna, Wildlife, Birds, plankton, microbial communities, and Humans. The study aims to provide insights into strategies to mitigate the environmental impacts of STP effluents. Upgrading treatment technologies such as implementing nutrient removal strategies, utilizing land applications, implementing monitoring programs, and engaging stakeholders are some of the effective strategies for mitigating the impacts of STP effluent.

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“…A total of 16 water samples (one liter for each) was collected from the study area in clean, dry and screw-capped plastic bottles. The water samples were then preserved via adding 5 ml concentrated nitric acid at collection to reduce the pH below 2 to prevent the microbial reactions (Hegazy et al, 2016).…”

Section: Samplingmentioning

confidence: 99%

Comparison of Heavy Metals Concentration in Different Tissues of Four Wild Bird Species

ElShabrawy¹,

Kamel²,

Goda³

et al. 2021

AAVS

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Nowadays, the degradation of ecosystems is increasing due to the extensive growth of human activity (Xu et al., 2013) and as a result of industrial processes and excessive use of fertilizers and other chemicals in agriculture, large quantities of pollutants were accumulated in the environment (Martinez-Lo´pez et al., 2005). Unlike other pollutants, heavy metals are non-biodegradable and persistent in nature for a long time causing biological magnification that may lead to severe health problems to human and wildlife (Malik and Zeb, 2009). Exceeding the permissible limits of heavy metals in the environment are considered to be toxic and interfere with essential metabolic and biochemical processes in a living organism by altering the activity of different enzymes, increasing free radicals and disrupting the antioxidant mechanism (Isaksson, 2010). Hence, the need for biological indicators for continuous monitoring of the level of heavy metals in the environment is significantly increased. Wild birds can be used as a bio-indicator for heavy metals pollution as it widely distributed, long lived, occupy several trophic

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Determination of Some Heavy Metals in water of the Southern Region of Lake Manzala, Egypt

Cited by 5 publications

References 14 publications

Heavy metal pollution in Manzala Lake sediments, Egypt: sources, variability, and assessment

Heavy metal pollution in Manzala Lake sediments, Egypt: sources, variability, and assessment

Impact of Sewage Treatment Plant Effluent on Lakes: An Overview

Comparison of Heavy Metals Concentration in Different Tissues of Four Wild Bird Species

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