The interactions of some radioelements activity patterns with some hydrographic parameters at the petroleum and phosphate regions in the Red Sea, Egypt

The negative correlation with pH and salinity as well as the positive correlation with DO indicate that the radionculides in sediments were less soluble with increasing pH and salinity therefore; they tend to accumulate in sediments under more the oxidizing conditions. The 40K variations in the sediments to the high solubility of potassium, the organic matter content and the particle size which corresponds to the clay content.