Short and long-lived radium isotopes in surface waters from Ilha Grande bay, Angra dos Reis, Brazil
نویسندگان
چکیده
منابع مشابه
Angra dos Reis Reactor Neutrino Oscillation Experiment
J. C. Anjos1, A. F. Barbosa1, A. Bernstein2, N. S. Bowden3, W. Fulgione4, E. Kemp5, J. Magnin1, H. Nunokawa6, O. L. G. Peres5, D. Reyna7, A. Schilithz1, R. C. Shellard1,6, and and R. Zukanovich Funchal8 (1)Centro Brasileiro de Pesquisas Fı́sicas, Rua Dr. Xavier Sigaud 150, Rio de Janeiro, RJ, 22290-180, Brazil (2)Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94551, USA (3)...
متن کاملEnvironmental factors affecting the distribution of land snails in the Atlantic Rain Forest of Ilha Grande, Angra dos Reis, RJ, Brazil.
The distribution and abundance of terrestrial molluscs are affected by environmental factors, but data are lacking for Brazilian land snails. The aim of this study was to understand the relationship between measured environmental factors and the land-snail species composition of two hillsides covered with Atlantic Rain Forest on Ilha Grande. On each hillside, five plots located at 100 m interva...
متن کاملRadium isotopes in the Ulsan Bay.
In order to estimate the fluxes of Ra isotopes, we measured 224Ra, 226Ra, and 228Ra activities in the Ulsan Bay mixing zone. The convex upwards curvature of the plot of Ra isotope activities versus salinity for the mixing zone suggests that Ra isotopes are supplied from particles entering the mixing zone from both the river and bottom sediments. This addition increases the estuarine flux of 226...
متن کامل[Slaves and citizens on Ilha Grande: the dawning of the Republic came slowly].
The article introduces Ilha Grande, a district in the municipality of Angra dos Reis, and describes its role within the subsistence market economy and the memory of slavery as found in the Angra dos Reis Civil Records. According to the Almanaque Laemmert, this district had the largest number of slaves in the municipality as of the 1870s. Most owners had few slaves, and the majority of landholdi...
متن کاملUsing natural distributions of short-lived radium isotopes to quantify groundwater discharge and recharge
Radium activity in pore water of wetland sediments often differs from the amount expected from local production, decay, and exchange with solid phases. This disequilibrium results from vertical transport of radium with groundwater that flows between the underlying aquifer and surface water. In situations where groundwater recharge or discharge is significant, the rate of vertical water flow thr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Radioprotection
سال: 2009
ISSN: 0033-8451,1769-700X
DOI: 10.1051/radiopro/20095047