| Abstract: |
The present study is to determine the hydrographic parameters, incident & reflected radiation, the radon air and the radioactivity components (Potassium, Radium and thorium) of Northern Safaga Bay (NSB) in the area extends from latitudes 26° 44’ 57’’ & 26The highest seasonal value of the incident solar radiation (1682.7 w/m2) is recorded during summer, while the lowest value (1074.0 w/m2) is in winter. The seasonal intensity of reflected radiation is fluctuated between 32.3 & 255.1 w/m2 at surface and 39.During the period of the study, the water temperature, salinity and density are fluctuated between 20.0 & 30.0 °C, 41.7 & 43.3 psu and 27.6 & 30.6, respectively.The seasonal distribution of water masses in the present study in NSB shows existence three time scale water masses. Winter water mass has lowest water temperature, highest water salinity and highest ?t, while summer water mass has the highest water tempeIn the area under study, the minimum & maximum values of the radioactive parameter (radon air, Radium-226, Thorium-232 and Potassium-40) are fluctuated between 2 &11 Bq/cm3, 5 & 19 Bq/g, 4 & 19 Bq/kg, and 1545 & 6122 Bq/kg, respectively. The concentrationBy the collected monthly data (environmental conditions and incident & reflected radiation) in the four areas (two stations used as Psoriasis treatment, one station outside NSB and one station inside the Bay) and using two statistical methods (correlation
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