Potential ecological hazards assessment and prediction of sediment heavy metals pollution along the Gulf of Suez, Egypt

Ibrahim, Mohamed; Mohamed, Laila A.; Mahmoud, Manal G.; Shaban, Kholoud S.; Fahmy, Mamdouh A.; Ebeid, Mahmoud

doi:10.1016/j.ejar.2019.12.003

Cited by 28 publications

(9 citation statements)

References 24 publications

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“…Within this group, several metals are toxic. This group comprises mercury (Hg), arsenic (As), cadmium (Cd), and lead (Pb) [ 7 ]. HMs fundamentally change the intake of trace elements in plants that perform essential biochemical functions and that are organically associated with increasingan organism’s resistance to ionizing radiation.…”

Section: Introductionmentioning

confidence: 99%

Seasonal content of heavy metals in the "soil–feed–milk–manure" system in horse husbandry in Kazakhstan

et al. 2021

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Background and Aim: The quality of food, especially animal-based food, is crucial for human health. However, the quality of milk and other animal products has become an acute cause for concern in Kazakhstan . Technogenic dispersion of heavy metals (HMs) causes adverse effects on living organisms and creates unfavorable conditions for the existence of humans, animals, and plants. The purpose of this study was to analyze the content of several HMs in samples of soil, horse feed (hay, mixed feed, and bran), mare's milk, and manure to assess bioaccumulation and possible adverse effects on the bodies of horses. An additional purpose was to identify areas with acceptable conditions for obtaining environmentally safe horse breeding products in the agricultural zones of the Almaty region, Kazakhstan. Materials and Methods: Samples were obtained from two farms in the Almaty region in 2020 (spring, summer, and autumn). In total, 72 soil samples were analyzed, which were taken from the upper humus horizon to the depth of the arable layer. Eighty-six samples were taken from the feed of horses. Green feed was represented by perennial and annual grasses (alsike clover, Medicago sativa, sweet yellow clover, as well as pea and oat mix). Barley and wheat bran stored in the warehouses of the farm were sampled for the research as feed supplements. The mixed feed comprised components such as maize and sunflower. In addition, 46 samples of mare's milk and 28 samples of horse manure were collected. The HM analysis was performed in the laboratory of the Kazakh-Japanese Innovation Center. The residual amounts of HMs were determined using an absorption spectrometer with a voltammetric analyzer. The content of cadmium (Cd), lead (Pb), mercury (Hg), and arsenic (As) in all the studied samples of soil, feed, mare's milk, and manure did not exceed the threshold limit values (TLVs), suggesting that the intake of these toxic elements into the human body with food was low. Results: The average Cd concentration was in the range of 0.29-0.31 mg/kg in soil samples and in the range of 0.20-0.27 mg/kg in feed samples. In milk, the Cd concentration varied from 0.01 to 0.02 mg/L and was lower in summer and higher in fall. The total average Cd content in horse manure was 0.1844 mg/kg. The concentration of Pb in soil samples ranged from 1.09 to 1.30 mg/kg with the lowest value in spring and the highest in fall. In the feed, the concentration of Pb varied from 0.14 to 0.76 mg/kg and in milk from 0.03 to 0.15 mg/L. The average concentrations of Hg and As in soil samples averaged 0.022 and 0.019 mg/kg, respectively, and were within the TLVs. Conclusion: In the study areas, the calculated transition rates in the soil–feed–milk–manure system revealed that the greatest transition of HMs was observed for Pb and Cd, and a smaller migration was observed for Hg and As. The tendency of accumulation of trace elements continued in the feed.

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Section: Introductionmentioning

confidence: 99%

Seasonal content of heavy metals in the "soil–feed–milk–manure" system in horse husbandry in Kazakhstan

et al. 2021

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“…However, at high concentrations, these trace metals become toxic. Cu forms insoluble salts and soluble complexes that are deposited and concentrated in the sediment (Ibrahim et al, 2019). The Zn concentrations in all O. mykiss muscle samples did not exceed the FAO standard value (30 µg/g).…”

Section: Redundancy Analysis According To the Concentration Of Heavy mentioning

confidence: 80%

Heavy Metals and Arsenic in Water, Sediment and the Muscle of <i>Oncorhynchus mykiss</i> from the Tishgo river in the Central Andes of Peru

et al. 2021

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The concentration of Cu, Pb, Zn and As in water, sediment and muscle of Oncorhynchus mykiss from the Tishgo river in the central Andes of Peru were analyzed. The water, sediment and fish samples were collected from 36 sites in three sampling sectors. The analytical determination was performed by flame atomic absorption spectrophotometry. The mean Pb concentrations in the water from the three sampling sectors showed significant differences (p < 0.05) which exceeded the values of the Peruvian standard and the WHO. The mean concentrations of Cu, Pb and As in sediment did not present significant differences (p > 0.05) in the three sectors evaluated. The redundancy analysis (RDA) revealed that the concentrations of As and Pb in water, and Cu, As and Zn in sediment significantly influence the concentration of these elements in the O. mykiss muscle. The mean concentrations of Cu, Pb, Zn and As in the O. mykiss muscle were lower than those established by international regulations. Therefore, the concentrations of heavy metals and As recorded in this study do not represent a threat to the consumption of O. mykiss from the Tishgo river.

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“…This indicates that the sources of Cu, As, Pb, Cd, Zn, and Ni in the study area are relatively the same. A high [Effendi et al, 2016] agricultural activity waste [Zhuang and Zhou, 2021], various maritime activities [Ibrahim et al, 2019], and household waste [Mane et al, 2001;Amin et al, 2009;Sindern et al, 2016]. In the study area, high heavy metal content was detected at the estuary sites.…”

Section: Discussionmentioning

confidence: 98%

Heavy Metal Contamination in Sediments and Its Potential Ecological Risks in Youtefa Bay, Papua Province, Indonesia

Hamuna¹,

Wanimbo²

2021

J. Ecol. Eng.

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This study aimed to analyze the heavy metal contamination in sediments and their potential ecological risks. The sediment samples were collected using PVC pipes and grab samplers at nine study sites in Youtefa Bay, namely five sites in the mangrove ecosystem, two sites in the estuary, and two sites in the middle of the bay. The heavy metal content was analyzed using Atomic Absorption Spectrophotometry. The results of the analysis of the heavy metal content in the sediment were in the following order:

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Potential ecological hazards assessment and prediction of sediment heavy metals pollution along the Gulf of Suez, Egypt

Cited by 28 publications

References 24 publications

Seasonal content of heavy metals in the "soil–feed–milk–manure" system in horse husbandry in Kazakhstan

Seasonal content of heavy metals in the "soil–feed–milk–manure" system in horse husbandry in Kazakhstan

Heavy Metals and Arsenic in Water, Sediment and the Muscle of <i>Oncorhynchus mykiss</i> from the Tishgo river in the Central Andes of Peru

Heavy Metal Contamination in Sediments and Its Potential Ecological Risks in Youtefa Bay, Papua Province, Indonesia

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