Distribution pattern of 90Sr and 137Cs in the Nile delta and the adjacent regions after Chernobyl accident

Sediment distribution and accumulation in lagoons of the Southern Mediterranean Region (the MELMARINA Project) with special reference to environmental change and aquatic ecosystems

“…The 137 Cs inventory in the ZERG3 core was calculated to be 930 ± 26 Bq m -2 . This is comparable to the 137 Cs inventories found in soil cores from the Nile Delta (Shawky & El-Tahawy, 1999), and again points to this sediment core having a good record of atmospheric deposition. The raw 210 Pb dates calculated using the CRS model place 1963 at 8.5-9-cm depth, significantly above the 1963 depth determined from the 137 Cs stratigraphy.…”

The investigation of 137Cs and 90Sr background radiation levels in soil and plant around Tianwan NPP, China

“…137 Cs concentrations ranged from 1.4 to 6.9 Bq kg À1 with a mean value of 4.6 AE 1.6 Bq kg À1 , which is similar to those reported from some countries (Benamar et al, 1997;Shawky and El-Tahawy, 1999), but is lower than others (NIRS, 1994;Kim et al, 1998;Pollanen et al, 2001;Al Hamarneh et al, 2003). For example, the arithmetic mean value (Shenber, 2001).…”

Distribution of gamma-ray emitting radionuclides in the marine environment of the Burullus Lake: II. Bottom sediments

“…This leads in turn to the assumption that no Chernobylrelated 137 Cs was deposited directly in the area. Deposition of 137 Cs from weapons and Chernobyl fallout in the Burullus Lake was estimated to be 700 Bq m −2 2 years after the Chernobyl accident (Shawky and El-Tahawy 1999). Appleby et al (2001) suggested possible Chernobyl fallout values of 30-40% of the total 137 Cs.…”