TY - JOUR AU - Ajlouni, Abdul-Wali AU - Abdelsalam, Manal AU - Al-Rabai’ah, Hussam AU - Ajlouni, Abdullah M.S. PY - 2009 TI - Diffusion of Radioactive Materials in the Atmosphere JF - American Journal of Environmental Sciences VL - 5 IS - 1 DO - 10.3844/ajessp.2009.53.57 UR - https://thescipub.com/abstract/ajessp.2009.53.57 AB - 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.