Impact of Man?s Activities on a Closed Fishing-Lake, Lake Maryout in Egypt, as a Case Study

El-Rayis, Osman A.

doi:10.1007/s11027-005-7836-9

Cited by 23 publications

(14 citation statements)

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“…The high organic matter content in Zahari and AL-Ruays area is attributed to the high seagrasses cover in the tidal flat zone. The OM % in the present study areas is lower than those of reported by Sagheer, 32 in North of Al-Hudaydah and Al-Luhayyah Red Sea coast of Yemen, reflecting that their sediments were mostly closer to the coastline and its much lower than those reported by Basaham, in the polluted Al-Arbaeen Lagoon, 6 in Red Sea coast of Jeddah. The OM % in the present study areas is larger than those of Heba et al, 17 Al-Edresy, 7 and Al-Hagibi.…”

Section: 12contrasting

confidence: 71%

“…5 Sediment acts as a sink for metals and the highest concentrations of toxic heavy metals in marine environment are found in sediments. [6][7][8] Coastal sediments are important hosts for heavy metal pollution and play an important role in determining the fate and effects of a wide variety of contaminants. 9 Vertical concentration gradientts of heavy metals in sediment cores can provide temporal information about the perturbation in the aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

“…10 The distribution of metals in sediment is very important from the point of view of environmental pollution because sediment concentrates metals from aquatic systems, and represents an appropriate medium to monitor contamination due to sediments are the principal sinks for heavy metals in an aquatic systems. 6,7,11 In spite of the fact that metals occur in the ecosystem naturally by geogenic and lithogenic processes, the heavy metals of anthropogenic origin tend to be bioavailable and then toxic pollutants. 12 Nijenhuis et al 13 reported that the enrichment of trace elements in marine sediments may, in general, originate from the following sources; super-and subjacent sediments, through diagenesis; suboxic shelf and slope sediments, hydrothermal input; Aeolian input; fluvial runoff; seawater.…”

Section: Introductionmentioning

confidence: 99%

“…14 Urban and industrial activities contribute to the introduction of significant amounts of pollutants (among them trace metals) into the marine environment and affect directly the coastal systems where they are quite often deposited. 6,7,15 In some places along the Red Sea coast of Yemen heavy minerals are usually common and represent 50% or more of the beach deposits. 16 These beach deposits are mainly derived from mountainous regions, which drain from the Yemen highlands to the sea through numerous valleys.…”

Section: Introductionmentioning

confidence: 99%

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Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen

Al-Edresy¹,

Wasel²,

Al-Hagibi³

2019

IJH

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The study area extends from Al-Haymah to south Al-Mokha along Red Sea and covering a distance of about 90 Km along the shore line, Int J Hydro. 2019;3(2):159-173.Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen Abstract The area between Al-Haymah and Al-Mokha on the Red Sea of Yemen is a promising region for future tourism development. It is also characterized by population activities, especially fishing in more than one location and there is a commercial port in Al-Mokha. The aim of the present study is to investigate the distribution of heavy metals (Cu, Cd, Zn, Ni and Pb) and Ecological Risk Assessment to assess the contamination levels of the coastal surface sediments. Distribution and ecological risk for Cu, Cd, Zn, Ni and Pb in sediment samples collected from 11 regions (37 stations) in the coasts of Yemen were studied. The results showed that the most of sediments are sand (83.83%), the content of organic matter was low (1.4%) and rich of calcium carbonate (56.1%), while the heavy metals arranged according to their abundance as follows: Zn>Cu>Ni>Pb>Cd. The contamination factor values for heavy metals arranged according to their dangerous as follows: Cd>Cu>Zn>Pb>Ni, and the potential ecological risk index values for heavy metals, according to the order evaluation of pollution in the various regions as follows: Qataba>Al-Mokha>North Al-Mokha>Al-Ruays>Abu-Zahr>South Al-Mokha>Zahari>Al-Khowkhah>Al-Haymah>Yokhtul>Moushij. The present study shows that the coastal sediments in this part of the Red Sea coast of Yemen are not Polluted by heavy metals (Cu, Zn, Ni and Pb), but it heavily polluted by Cd. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen 160 Copyright: ©2019 Al-Edresy et al. Citation: Al-Edresy MAM, Wasel SO, Al-Hagibi HA. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen. Int J Hydro. 2019;3(2):159-173. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen 161 Copyright: ©2019 Al-Edresy et al. Citation: Al-Edresy MAM, Wasel SO, Al-Hagibi HA. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen. Int J Hydro. 2019;3(2):159-173. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen 162 Copyright: ©2019 Al-Edresy et al. Citation: Al-Edresy MAM, Wasel SO, Al-Hagibi HA. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen. Int J Hydro. 2019;3(2):159-173. Citation: Al-Edresy MAM, Wasel SO, Al-Hagibi HA. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen. Int J Hydro. 2019;3(2):159-173. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Y...

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Section: 12contrasting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen

Al-Edresy¹,

Wasel²,

Al-Hagibi³

2019

IJH

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“…It is worthy to mention that, high values of Pb, Mn, Cu and Zn resulting in severe health problems through food-web chain which consequently cause societal development degradation [61].…”

Section: Dangerous Effects Of Heavy Metal Pollutants On Ecological Symentioning

confidence: 99%

Comparative Geochemical Assessment of Heavy Metal Pollutants among the Mediterranean Deltaic Lakes Sediments (Edku, Burullus and Manzala), Egypt.

et al. 2017

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Hydrodynamic and Water Quality Modeling of Lake Mariout (Nile Delta, Northern Egypt)

El-Naggar

Rifaat

2017

The Handbook of Environmental Chemistry

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Impact of Man?s Activities on a Closed Fishing-Lake, Lake Maryout in Egypt, as a Case Study

Cited by 23 publications

References 1 publication

Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen

Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen

Comparative Geochemical Assessment of Heavy Metal Pollutants among the Mediterranean Deltaic Lakes Sediments (Edku, Burullus and Manzala), Egypt.

Hydrodynamic and Water Quality Modeling of Lake Mariout (Nile Delta, Northern Egypt)

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