scholarly journals Accumulation of heavy metals in Mangroves (Avicennia marina) from Syhat and Safwa region, Tarut Bay Saudi Arabia.

2016 ◽  
Vol 4 (7) ◽  
pp. 1811-1816 ◽  
Author(s):  
Mohamed Guitouni ◽  
◽  
MostafaAbdelMohsen ElGammal ◽  
NabilA. Fita ◽  
◽  
...  
2019 ◽  
Vol 149 ◽  
pp. 110669 ◽  
Author(s):  
Omar M.L. Alharbi ◽  
Rafat A. Khattab ◽  
Imran Ali ◽  
Yaser S. Binnaser ◽  
Adnan Aqeel

2021 ◽  
Vol 9 (10) ◽  
pp. 1439-1448
Author(s):  
Samia S. Barghash ◽  
◽  
Hatem Abdel Moniem Ahmed ◽  
Modhi K. Al-Baker ◽  
◽  
...  

Background: Heavymetalscontaminationincosmeticproducts isbecoming animportant healthprobleminboth worldwide and locally at the level of the Kingdom of Saudi Arabia (KSA).The aim of this study was to detectthe concentration of heavy metals in the most commonly used eyeliners purchased in Saudi Arabia. Also, to assesssafetyawarenessoftoxicelementsofmostconcernheavymetalsin cosmetics. Methods: A cross-sectional survey was designed and distributed electronically in Saudi Arabia in November 2015.The questionnairewas conducted on 769 Saudi women aged from15-60 years old that is using cosmetic products. Secondly, 10samples from 10 different types of eyeliners frequently used in Saudi Arabia were digested. The digested sampleswere analyzed for lead, cadmium andmercury using graphite furnace- atomic absorption spectrometry (GF-AAS). Results:Themajorityofcosmetictypesusedbyparticipantswereeye-linerkohl(73.9%).About(34.59 %) of participants were not aware about heavy metals contents in cosmetics. The heavy metals, cadmium, lead andmercury were detected in all samples with varying concentrations. The level of lead was the highest. There was asignificant difference of cadmium, lead and mercury concentration p< (0.05) in different brands of eyeliner. Therewasstatisticallysignificant difference betweencadmiumandlead alsobetweenmercuryandlead p<0.05ofdifferenteyelinerbrands. Conclusion: It was foundthatthemajorityofparticipantsexpectedthatexpensivecosmeticsaresafe and theypreferred internationalbrandswhichisnotnecessarytobesafe.


2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Kholoud Abou Seedo ◽  
Mohammad S. Abido ◽  
Ahmed A. Salih ◽  
Asma Abahussain

Accumulation of 8 heavy metals (HM), Cr, Cu, Fe, Mn, Mo, Ni, Pb, and Zn, was assessed in the leaves and sediments of gray mangrove (Avicennia marina (Forsk.) Vierh.) at three sites along Tubli Bay using Inductive Coupled Plasma Analyzer. The results showed no significant differences in HM contents in the leaves of mangroves between the sites except for Mo and Zn. HM concentrations (mg L−1) in leaves were in the following order: Fe > Zn > Mn > Mo > Cu > Ni > Cr. Significant differences existed between sediment content of Tubli site and the other two sites with regard to Cr, Cu, Pb, and Zn due to direct exposure of the site to wastewater outfalls. A general trend of decline in HM concentrations was noticeable from the top towards deeper sediment layers in all the sites of the study area. Concentration of HM in sediment was in the following order: Fe > Mn > Zn > Cu > Cr > Pb > Ni. HM concentration in sediments far exceeded the amount present in the leaves of the mangrove except for Ni. The amounts of HM in mangrove sediments were comparable to regional findings and fell within known sediment quality guidelines.


2010 ◽  
Vol 143 (2) ◽  
pp. 1121-1130 ◽  
Author(s):  
Hossein Parvaresh ◽  
Zahra Abedi ◽  
Parvin Farshchi ◽  
Mahmood Karami ◽  
Nematullah Khorasani ◽  
...  

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