1. Radiation Protection Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Cairo 13759, Egypt
2. Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom
3. Department of Chemistry, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
4. Marine Geology Department, Coastal Research Institute, National Water Research Center, 15, St. Elpharanaa, Elshalalat, Alexandria 21514, Egypt