Wet Deposition in Khartoum State- Sudan

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

This study sole objective is to estimate the wet deposition in Khartoum State.Eleven samples were collected from seven rain events during 2007 rain season , fromthree different stations; first class residential area, second class unpaved area andindustrial area.The measurement of the wet deposition pollutants carried out for DissolveOxygen, pH, and main contaminants BOD, COD, Ammonia, Carbonate, Nitrates,Sulphate and Total Phosphorus. The accuracy of the analysis checked with chargebalance estimation, the high resulted percentage difference was according tosignificant missing measurements.The calculation of the weighted average concentrations showed that thesouthern wind is loaded with high concentration of SO42-, CO32-and NO31-. Also theaverage weighted concentration analyzed by MINTEQA2 program to estimate thepercentage difference, species and pH which confirmed the calculated charge balance.The loads of the concentrations were used to perceive the contributions ofdifferent land uses to the air pollution and the resulted loads in kg per Km2 were 196.9SO42-, 57.8 NO31-, 429 CO32-, 2.6 TP, 329.8 NH3, 190 COD and 170 BOD. Moreoverthe analysis were acquiescent with the variation of wet deposition pollutantsconcentrations according to rainfall conditions like time of the day, the surroundedarea and heights besides the variability of the concentrations within the singleprecipitation events.Most of the precipitation samples were collected from urban centers and awayfrom major point sources of pollution, to provide more regional/national perspectiveon precipitation chemistry.The results acquired from this thesis assure that there is no acidic deposition inKhartoum State, high amount of suspended solids in the state due to unpaved streets,and high concentrations of the wet deposition pollutants in the industrial areas whichneeds environmental management and restricted regulations to maintain the air clean.The requirement of pilot studies to focus on the wet deposition variation inKhartoum State is essential as the urbanization and industrial revolution are certainlygoing to affect the rain quality.

روابط وملفات

التعريف والنوع

رقم الوثيقة

eb94e2a6-d2cb-4c7a-b0c3-f93cb935bdc2

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1636780_1.pdf

بيانات النشر

ألقاب المؤلفين

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اللغة

English

المصدر والدورية

اسم المصدر

Wet Deposition in Khartoum State- Sudan

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

محمد المنتصر أحمد

الإعداد

إسراء شيخ الدين محمد عبدالله

الاقتباسات الببليوغرافية