Mansoura University, Council for Community Services and Environmental DevelopmentJournal of Environmental Sciences. Mansoura University1110-192X50120210301Water quality assessment of mosquito breeding water localities in the Nile Valley of Giza Governorate11015432710.21608/joese.2021.52428.1002ENAlaaNagyDepartment of Zoology and Entomology, Faculty of Science (Girls Branch), Al-Azhar University, Cairo, Egypt0000-0002-3136-5577AhmedEl-ZeinyDepartment of Environmental Studies, National Authority for Remote Sensing and Space Sciences (NARSS), Cairo, Egypt0000-0001-7246-2982ManalElshaierDepartment of Zoology and Entomology, Faculty of Science (Girls Branch), Al-Azhar University, Cairo, EgyptMohamedSowilemDepartment of Environmental Studies, National Authority for Remote Sensing and Space Sciences (NARSS), Cairo, EgyptWedadAtwaDepartment of Zoology and Entomology, Faculty of Science (Girls Branch), Al-Azhar University, Cairo, EgyptJournal Article20201206Giza governorate has unique characteristics which induces mosquito proliferation and thus magnified the risk of diseases transmission. In the present study, entomological field surveys integrated with lab analysis were utilized to characterize water quality associated with mosquito breeding habitats in the Nile Valley zone of Giza governorate. Field survey was conducted for a total number of 20 accessible breeding sites during the period of 6th –9th December 2019. From each visited site, mosquito larvae and water were sampled to identify larval species and analyze physico-chemical characteristics of water. Fourteen different water quality parameters were measured including; pH, Total Dissolved Solids (TDS), Oxidation-Reduction Potential (ORP), Conductivity (EC), Turbidity, Chlorophyll, HDO, Crude Oil (CO), Salinity, OM, Phosphate ion (PO43-), Nitrate ion (NO3-), Cadmium (Cd), Lead (Pb). Spearman correlation coefficient was used for data analysis. A total of 8,435 mosquito larvae belonging to 4 species representing one genus were collected from fixed larval breeding places. Culex pipiens was the dominant species except in two sites where Cx. pusillus and Cx. theileri were predominant. There was a significant positive correlation between the density of Cx. pipiens and Cx. perexigues and salinity, OM, nitrate, phosphate, and heavy metal, except that the correlation between Cx theileri and phosphate is negligible. It could be concluded that the correlations observed between physicochemical factors and larval species confirm the effect of these parameters on the breeding activities of mosquitoes and may be suggestive of the presence of certain mosquito fauna in a given region.https://joese.journals.ekb.eg/article_154327_fee9d54ac36a9f1e3d4238ade75509a4.pdfMansoura University, Council for Community Services and Environmental DevelopmentJournal of Environmental Sciences. Mansoura University1110-192X50120210303Hydrogeophysical analysis of the Dammam Eocene carbonate aquifer of the Shigaya Field-D, Kuwait111917723210.21608/joese.2021.50309.1000ENFouad FawzyShaabanDepartment of Geology, Faculty of Science, Mansoura University, Mansoura, EgyptAhmedAl-RashedDepartment of Science, College of Basic Education, PAAET, KuwaitYousefAl-hamadDepartment of Science, College of Basic Education, PAAET, KuwaitJournal Article20201120Hydrogeological, hydrochemical and electric logging data of 24 groundwater wells of the D- field of the Shigaya, SW of Kuwait, were used to evaluate the Middle Eocene Dammam carbonate aquifer and to recognize the major geochemical processes that controlling the groundwater quality. The results indicate that the Dammam aquifer has a heterogeneous lithological nature, that composed of limestone, dolomitized at the top, with dispersed argillaceous materials ranges from 0 to 21% and total matrix porosity ranges from 4 to 35 %. The highest matrix porosity is recorded at the top of the formation, that was enhanced by dolomitization, fracturing, and dissolution. Interpretation of the hydrochemical data indicate that the groundwater type is Na2SO4 that enriched with Na+ and Ca++ and strong acids (SO4-- and Cl-) than the weak acids (CO3--+ HCO3-). This indicates a simple dissolution or mixing nature of the groundwater and a reverse ion-exchange between sodium ions of the meteoric water and the magnesium and calcium ions of the groundwater. The sulphate and chloride ranging from 1046 to 1345 ppm and 420 to 647 ppm, respectively. The sodium concentration ranges from 282 to 456 ppm and the calcium ranges from 225 to 387 ppm, while magnesium has the lowest concentration of between 118 and 137 ppm. A rapid decrease of the Dammam water salinity was detected after 1977, as a result of groundwater exchanges that took place between the overlying, relatively lower salinity, Kuwait Group aquifer through the wellbores whenever the wells are not being pumped.https://joese.journals.ekb.eg/article_177232_5e2434a468aa7ff2ccd964cdd7c01eac.pdfMansoura University, Council for Community Services and Environmental DevelopmentJournal of Environmental Sciences. Mansoura University1110-192X50120210310Remediation of extracted water from El-Burullus drains sediments using chemical oxidation202615432910.21608/joese.2021.56063.1002ENHazemAbd El-HamidMarine environment- NIOF- EgyptAhmedAl-ProlMarine Pollution Department, NIOF, EgyptMuhammad AEl-AlfyMarine Pollution Department, NIOF, EgyptJournal Article20201231The efficiency of treatment was eliminated based on residual concentration of ammonia-nitrogen (NH4-N) and chemical oxygen demand (COD). Removal percentage of ammonia in case of using H2O2 increased in a concentration of 30%. the removal of organic pollutants recorded high efficiency of removal in 14.28 and 10.71% for east El-Burullus and Damru drains, respectively. KMnO4 gave better results which, the maximum ammonia removal was 66.59 % for 0.2 g/L of KMnO4 in Hokx site, whereas COD removal was 34.48 % at 0.1of KMnO4 in Hokx site. Acidic conditions (pH 3) demonstrated conducive to the removal of all factors for both oxidants with the exclusion of COD removal in Burullus east that displayed a high removal at pH 5. The reduction of NH4-N at pH 3 for both KMnO4 and H2O2, with 76.74%, 93.76%, 92.03 % for Burullus east, Damro and Hokx sites, respectively. whereas the higher percentage removal in COD was 23.07% and 8.97% for both Damro and Hokx sites at PH 3, while in Burullus east was 22.22% at pH 5. Furthermore, Fe2+/H2O2 (Fenton’s reagent) was run in the batch process with various doss. Under the optimal parameters, the removal efficiency of COD was achieved 58. 69 % and 12.60 % for both Burullus east and Damro, respectively at Fe2+ =0.4 g/L, pH= 3 and contact time of 120 min. The NH4-N and COD removal performance of KMnO4 was well compared with H2O2. Finally, remediation needn’t extra pH adjustment which it is simple operation and low capital cost.https://joese.journals.ekb.eg/article_154329_ce031785c95f1d6db9e3f5e164b0da74.pdfMansoura University, Council for Community Services and Environmental DevelopmentJournal of Environmental Sciences. Mansoura University1110-192X50120210307Assessment of two different extraction methodology on the anticancer activity of a commercial cocktail of phytochemicals on proliferation and migration of liver cancer.273517726510.21608/joese.2021.177265ENWalaaY Saad El-DeenZoology Department, Faculty of Science, Mansoura University, EgyptEl-SayedK AbdelhadyZoology Department, Faculty of Science, Mansoura University, EgyptMohamedE AbdrabohZoology Department, Faculty of Science, Mansoura University, EgyptJournal Article20201126Phytochemicals are natural products which extracted from vegetables, fruits or plant roots by chemical methods. The interest in phytochemicals as anticancer agents were progressively developed in the last decades as they are safer than chemotherapy on human health. Breast safeguard (BSG), the drug under study, is a commercial product consisted of seven phytochemical compounds. This study aims to assess the impact of two different extraction approaches in increasing the efficacy of BSG in sensitizing the HepG2 cells for Docetaxel. The extraction of BSG was conducted by either 20% DMSO or 100% DMSO then diluted to 20% concentration using a complete media of cell culture. The phenolics and flavonoids contents and the antioxidant activity using DPPH assay was evaluated in both extracts. The effect of the two extracts on HepG2 cell proliferation and migration was tested using MTT assay and wound healing assay, respectively. The data revealed a significant effect of the second approach (100% DMSO) in increasing the antioxidant activity of BSG indicated by the significant increase at phenolic, flavonoid content confirmed by the marked decrease at IC50 compared to ascorbic acid as a reference standard. MTT assay indicated a significant effect of the second approach in inhibiting HepG2 cell proliferation in a dose dependent manner compared to the first approach (20% DMSO). Estimation of the wound size of the treated cells revealed a marked effect of second approach in inhibiting cell migration in comparison with the first approach. We concluded that the extraction of phytochemicals content using 100% DMSO not the 20% pre-diluted DMSO would provide a significant increase at the phenolic and flavonoid content which in turn lead to a significant increase at antioxidant activity and significant inhibition at HepG2 cell proliferation and migration pointing out BSG as a potent anticancer agent.https://joese.journals.ekb.eg/article_177265_1252651e26870575157508180d1c0bf8.pdf