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 Occurance of parasites Existence Due to WasteWater Discharge in the Shoreline Region of Khanyounis, Palestine.

Show simple item record Khamis Ibrahim Alnady 6/12/2020 6/12/2020 2021-01-08T18:42:01Z 6/12/2020 2021-01-08T18:42:01Z 3/13/2014
dc.description.abstract Gaza Strip suffers from many environmental problems and health risks as a result of the steady increase in population along with the absence of development projects that correspond to this increasing. The Gaza beach of the coastal line is an important area for recreation purposes. It is heavily polluted with treated, partially treated and untreated sewage from point and non-point sources. The aim of current study is focusing on the detection of species of human gastrointestinal parasites as an indicator of pollution of the seashore of Khan Younis. The investigation was conducted through analysis of the parasitic contamination of seawater along the study area. A total of 200 seawater samples was analyzed half of the samples (100sample) was analyzed during the winter season(1/2013 to 3/2013) whereas the second half from analyzed during the summer season period (6/2013 to 8/2013).The samples were collected from the study area of about 9km along the seashore region of Khan Younis. The study area was divided into five zones (A, B, C, D, E) according to several criteria such as the presence of the wastewater discharge points and other geographical characteristics. Seawater samples were examined using three parasite analysis techniques (direct smear, concentration and staining). SPSS and Stats Direct as computer software were used for the data analyses and interpretation, and the results were presented in the forms of bar graphs and tables. The results showed that the parasitic contamination was 12% of the seawater samples during the winter season period and it was increased in summer to18% due to the huge amount of raw and partially treated sewage that discharged in the shoreline region and due to recreation and swimming and washing of the domestic animals in this period. The zone (B) (discharge point) showed the highest parasitic contamination level, while, zones (A) and (C) had lower level of pollution and zones (D), (E) were uncontaminated. The parasitic contamination increases with the decrease of the distance from the wastewater discharge points. The parasites species which were discovered are: Ascaris lumbricoides, Giardia intestinalis Strongyloides stercoralis, Entamoeba histolytica/dispar, Entamoeba coli Cryptosporidium parvum. The human gastrointestinal parasites prevalence in the analyzed samples is positively proportional to the quantity of wastewater discharged and is being affected by its quality (treated, partially treated and/or raw sewage). The most accurate technique used in analyzing seawater samples was the staining compared to the direct and concentration techniques. The study recommended that discontinue the flow of sewage into the marine environment, which is the main source of pollution of seawaters according to the results of this study. The effluent discharge method should be reconsidered. A distance of not less than 400 meters inside seawater is recommended by many international agencies. And establishment of the main wastewater treatment plants in Khan Younis governorates, as much as possible to minimize environmental risks to the marine and recreational environment. Finally, establish educational programs to increase the public awareness of health hazards associated with seawater pollution. The public should be informed properly by posting signs indicating polluted areas. en_US
dc.language.iso en_US en_US
dc.publisher Batch2 en_US
dc.title  Occurance of parasites Existence Due to WasteWater Discharge in the Shoreline Region of Khanyounis, Palestine. en_US
dc.type Thesis en_US

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