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العنوان
Nuclear and related analytical techniques used to bio-monitor trace element in aquatic ecosystem of Egypt using some specific algae /
الناشر
Noha Hassan Nassar ,
المؤلف
Noha Hassan Nassar
هيئة الاعداد
باحث / Noha Hassan Nassar
مشرف / Mohamed M. Sherif
مشرف / Marina Frontasyeva
مشرف / Mohamed M. Sherif
تاريخ النشر
2018
عدد الصفحات
66 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الفيزياء والفلك (المتنوعة)
تاريخ الإجازة
15/5/2019
مكان الإجازة
جامعة القاهرة - كلية العلوم - Physics
الفهرس
Only 14 pages are availabe for public view

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Abstract

The concentrations of Na, Mg, Al, S, Cl, K, Ca, Sc, Ti, V, Mn, Fe, Co, Ni, Zn, As, Se Br, Rb, Sr, Mo, Ag, Sb, I, Cs, Ba, La, Sm, Tb, Yb, Hf, Ta, Th and U in some types of marine macrophytes (algae and seagrass), collected from 7 stations along the Mediterranean Sea coast of Egypt were determined using instrumental neutron activation analysis. The contents of elements in marine macrophytes indicated that they accumulated elements at different levels depending on their type of species (brown, red, green and seagrass) and the ambient water conditions. In general, the levels of classically investigated elements, particularly, Mn, Fe, Co, and Ni determined in the macrophytes in the present study are lower or within the wide range of values previously reported for the Mediterranean Sea. While the concentrations of Zn measured in some samples showed a higher trend reflecting a possible source of Zn contamination