Human Resources Development and Institutional Arrangements for Managing Coastal Resources and Environments in the UAE, From Concept to Practice

The coastal area of UAE contains some of the world's richest ecosystems including extensive oil reservoirs, coral reefs and mangrove forests. UAE in fact faces an acute shortage of personnel having the necessary knowledge, technical skills and managerial capability to meet the new challenges which involve the application of integrated approaches to formulation and implementation of plans for the sustainable development of coastal and marine areas. This paper is focus on the following two objectives: Human resources development and capacity building for planning and managing of coastal areas and identify elements of environmental training strategies and environmental master plan. Increasing awareness for the needs for coastal zone management should starts with policy-maker, decision-makers and planners. It is recommended that before the initiated training programmes, careful analysis for the present and future needs along with analysis of the present training programme, either locally, regional or internationally should be done. On the other hand, evaluation of the current training programmes is inevitable as well as training should be target and at different levels

النمذجة ألجيوكميائية وتسوية النتائج للعناصر ألثقيلة في رواسب القاع دبي - الإمارات العربية المتحدة

Dubai creek can be considered as the focal point of Dubai. It has great importance for trading and aesthetic values. Total and leachable heavy metals (Cd, Co, Ni, Pb and Zn), organic carbon and total carbonate were studied in the bottom sediments of the creek. Pollution Load Index, statistical analysis, were used in order to quantify the pollution load as well as to discriminate the data into significant groups. Normalization of the data using organic carbon and total carbonate was done in order to reduce the effect of grain size. Quantification and methods normalization allow the sampling stations to be differentiated into two groups. The first group of clustered stations are those located in the upper channel up to Abra, including the Gomera beach, off creek and the creek mouth. The second groups of stations are those from Jadaf, including the lagoon area. It is concluded that there is an increase in the pollution load with time, however comparing the present results with the previous data, Dubai creek can not be considered as a polluted region. Care should be taking in order to reduce the pollution load in future.يعتبر خور دبي المنطقة الرئيسية لدبي لما له من أهمية كبرى في شركة التجارة و المنظر الجمالي لدبي . تم تحليل المعادن الثقيلة ( الجزء الكلي والجزء المتاح ) و الكربون العضوي والكربونات الكلية في رواسب القاع في منطقة الدواسة . وقد أتضح من حسابات مؤشر حمل التلوث والحسابات الإحصائية بالإضافة إلى تسوية الحسابات لتقليل تأثير حجم الحبيبات أن منطقة الخور يمكن أن تقسم إلى منطقتين : - المنطقة الأولى : تبدأ من فتحة الخور حتى منتصف المجرى بالإضافة إلى منطقة شاطئ الجميرة و أمام الخور. - المنطقة الثانية : تضم الجزء الداخلي من الخور بالإضافة إلى منطقة شاطئ البحيرة. وقد أتضع أن هناك زيادة في حمل التلوث مع الزمن و لذلك يوصي بمحاولة تقليل حمل التلوث في الخور علماً أنه بمقارنة النتائج الحالية مع النتائج السابقة فإن خور دبي لا يعتبر منطقة ملوثة

تقييم التلوث بالعناصر في رواسب بحيرة البرلس جنوب شرق البحر المتوسط - مصر

The present study aims to quantify the heavy metals contents in the sediments of Lake Burullus. Cu, Pb, Zn, and Cd were analyzed using ICP spectrometer. The contamination factors (CF) were calculated for each element. The CFs were found to fall in the following sequence : Cd > Pb > Cu > Zn. The pollution load index (PLI) was also estimated. Chcrnoff face analysis was used to represent the pollution extent at different stations. The level of pollution by heavy metals is mainly induced by the input from the drains, the biomincralization and the current circulations.تهدف الدراسة الحالية إلى تقدير نسبة العناصر الثقيلة الموجودة في رواسب بحيرة البرلس . وقد تم تحليل عناصر النحاس والرصاص و الزنك والكاديوم باستخدام جهاز البلازما . وتم حساب معامل حمل التلوث على النحو التالي الكاديوم ˂ الرصاص ˂ النحاس ˂ الزنك. وجد ارتباط بين مستوى التلوث بالعناصر الثقيلة في رواسب البحيرة وكل من كميه المياه المنصبة في البحيرة عن طريق المصارف - حركة التيارات وعملية التمعدن البيولوجي

Man-made impact on the geochemistry of the Nile delta lakes. A study of metals concentrations in sediments

Forty two sediment samples were collected from four River Nile northern delta lakes (Mariut, Edku, Burullus and Manzalah) to asses the man-made impact on their environment during the last 20 years. Due to the continuous discharge of agricultural, industrial and sewage waste waters to these lakes, significant variations in the sediment's nature took place, with fine fractions dominating opposite to the outflowing area of the main drains. Organic carbon was elevated at the southern regions, reaching 10.5 ± 4.5% in lake Mariut. Meanwhile, carbonate increased reaching 90% for samples collected at the lake-sea connection areas. The 0.5 N HCl extractable metals indicated enriched levels of different metals at sites affected by sewage and industrial discharge. This fraction constituted 75 and 81% of the total metals in Lakes Mariut and Manzalah, respectively. Extractable Cd for Lakes Mariut and Manzalah constituted 51 and 53%, respectively, while Ph formed 59% of the total digestable metal in Lake Manzalah. Total metals concentrations especially Cd and Pb were elevated 8 to 70 times than those observed in the same lakes 25 years ago. The conversion of the untreated sewage discharge of Alexandria city to Lake Mariut and significant portion of Cairo sewage to Lake Manzalah during the past 10 years lead to the appearance of elevated levels of contaminants in both lakes. Agricultural discharge showed less impact on Lakes Edku and Burullus. Cluster analysis revealed associations between stations located under same types of stress while the correspondence factor analysis displayed that metals distribution pattern in the Nile delta lakes are governed by organic carbon as well as fine grained size fraction distribution

Recycling and photodegradation processes of organic hazardous materials on polyaniline-titanium dioxide quantum dots catalyst

A photo-catalyst with conducting polymers doped with titanium dioxide, known as TiO2 quantum dots (TiO2 QDs), has a high efficiency for photocatalytic usage. The organic hue methyl orange was broken down in the current study using polyaniline (PANI) and polyaniline titanium dioxide quantum dots (PANI-TiO2 QDs) polymers. PANI and PANI-TiO2 QDs have been produced by chemical oxidative polymerization in an aqueous solution. By characterization of PANI-TiO2 QDs nanocomposites using ultraviolet–visible (UV–vis), Fourier transform infrared (FTIR), and X-ray powder diffraction (XRD), it was demonstrated that the chemical structure of polymer composites had not changed after being doped with TiO2 QDs. To determine the form, size, surface area, and thermal analyses of the produced PANI-TiO2 QDs samples, EDX, BET, and TGA were used. The photocatalytic activity of the PANI-TiO2 QDs in the photo-degradation of methyl orange dye as an organic hazardous chemical in an aqueous medium was assessed using a 50-watt xenon lamp light source and direct sunlight. PANI-TiO2 QDs demonstrated high photocatalytic properties, with a 93% efficiency, as opposed to 35% and 60.1%, respectively, for PANI and TiO2 QDs. When PANI, titanium dioxide quantum dots, and PANI-TiO2 QDs are present during the recycling processes in the presence of all created samples up to four times, the photo-degradation rate decreases by about 50.2%, 15.4%, and 17.4%, respectively