Statistical analysis for physico-chemical characteristics in the shoreline region of Gaza City [electronic resource].

Includes references.

Gaza Strip facing a series wastewater management problems: large-scale discharge of untreated or partially treated wastewater, leaking of collected wastewater from sewer systems and cesspits, water treatment plants that do not function or function only poorly and uncontrolled reuse of partially treated wastewater. This is causing many health and environmental problems. In this study, spatial variations of seawater quality in shore line region of Gaza City were evaluated using the modern statistical techniques, such as Analysis of Variance (AN OVA) Test, Central Tendency and Dispersion Measurements. Seawater data collected from five sampling stations located in the coastal region during the period from Jan to Jul of 2009 by four samples in each station within every month, these samples were tested for five parameters (Temperature, pH, Turbidity, Salinity and Dissolved Oxygen). Statistical analysis of the results of samples showed obvious variations in concentration of pollution between stations. Dissolved oxygen parameter used as an indicator for the presence of organic contamination, DO in S2 ( 5.4 ,mg/l) and S4 (5.5 mg/l) were lower than in Sl, S3 and S5 (9.8, 8.6 and 10.04 mg/l, respectively, and it consists of the quantity of untreated wastewater discharges in these locations. it evinced that there are a regions setting along the coastal zone of Gaza Strip were completely deteriorated and polluted by row toxic untreated wastewater which discharged directly to the Mediterranean Sea causing several diseases between Gazians, destroying the fishing and recreational area, this requires urgently to work on a common and urgent efforts to assist in solving or decreasing the effects of this problem.

Summary in Arabic.

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