University of Khartoum

Estimation of the Levels of Airborne Lead Pollutants in Three sites of Khartoum State

Estimation of the Levels of Airborne Lead Pollutants in Three sites of Khartoum State

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Title: Estimation of the Levels of Airborne Lead Pollutants in Three sites of Khartoum State
Author: almajeed, Amal kamal Osman Abd
Abstract: Exposure to environmental lead is clearly major public health hazard of global dimensions, Sudan is not an exception. The rapid unorganized industrialization, including micro – industrial practices , in the last tow decades around residential sites in the capital Khartoum in addition to the use of leaded gasoline plus the absence of tighter control emission of lead in the ambient air remain to be significant public health problem in this over populated City. The aim of the present research Endeavour is to determine the concentration levels of environmental lead in the ambient air in Greater Khartoum as a preliminary investigation to evaluate the health risks resulting from exposure of workers as well as the public via determination of the concentration levels within three sites of the City in two seasons. The study area was industrial area, residential sites and heavy traffic areas, chosen as to symbolized a typical urban communities that represent different kinds of human activates. An efficient and validated air sampler was used to, selectively, collect air samples polluted with environmental lead from selected three sites of study .The three sites were recognized with an average temperature and average prevailing humidity of 34.2c° and 18 .3 % respectively .A total of 43 samples were collected : 16 samples from Suba area(rural area) located south of the city , 15 samples from Omdurman area from an urban residential site west of the city and 12 samples from an industrial area in Khartoum North by the use of high volume sampler device between March, 2011-August, 2012 in two seasons of varying prevailing temperature and humidity. Lead concentration was measured using a Graphite Atomic Absorption Spectrometer. The average concentration level of environmental lead within the Suba Site was 0.0090947 ppb. In Omdurman Residential Site the average concentration level was 0.0011737078 ppb. While, within Khartoum North industrial Site the concentration level of environmental lead was, comparatively, extremely high mounting to 0.07229042 ppb. The concentration levels within the first two sites were below the EPA and WHO permissible level of 1.0µg/m3, contrary to the third site in which the level mounted greater than EPA and WHO permissible level.
Description: 90 page
URI: http://khartoumspace.uofk.edu/123456789/26485


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