@article {10.3844/ajessp.2009.53.57, article_type = {journal}, title = {Diffusion of Radioactive Materials in the Atmosphere}, author = {Ajlouni, Abdul-Wali and Abdelsalam, Manal and Al-Rabai’ah, Hussam and Ajlouni, Abdullah M.S.}, volume = {5}, number = {1}, year = {2009}, month = {Feb}, pages = {53-57}, doi = {10.3844/ajessp.2009.53.57}, url = {https://thescipub.com/abstract/ajessp.2009.53.57}, abstract = {Problem statement: The dispersion of radioactive materials in the environment related to escaping of noble gases, halogens and aerosols of non-volatile radioactive materials, from the reactor containment during normal operations, or in the event of a sever reactor accident. Approach: radionuclide dispersion in the environment is demonstrated by mathematical tools which are the partial differential equations, mainly the diffusion equation. A mathematical model to calculate the concentration of nuclear pollutants (radioactivity) with certain boundary conditions is constructed. Results: Solving the mathematical model and using some approximations lead to a distribution represents a model for plume of radioactive pollutants dispersed in two dimensions normal to the wind direction in which the plume moves as an entire non-dispersible unit. Conclusion: The obtained result theoretically are very close to those achieved experimentally.}, journal = {American Journal of Environmental Sciences}, publisher = {Science Publications} }