What is it about?
The radiological and elemental hazards indices of phosphate fertilizers and phosphogypsum waste were investigated by determination of their components concentration using Instrumental Neutron Activation Analysis (INAA) then comparing the resultant concentrations with the acceptable limit. The radioactivity of 40K, 232Th and 238U within the samples were determined using passive gamma ray spectroscopy. For carcinogenic risks, the incremental lifetime cancer risk was calculated. The outcomes give rise to that some parameters values are above the acceptable limit, this increases the probability of adverse health effects.
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Why is it important?
The environmental impact risk resulting from the utilization of phosphate fertilizers and phosphogypsum waste was evaluated by the computation of some parameters including; absorbed dose rate, annual effective dose equivalent, radium equivalent activity, hazard index for γ-rays, excess lifetime cancer risk, alpha index and annual gonadal dose equivalent.
Perspectives
The outcomes of this work give rise to that some parameters values are above the acceptable limit, this increases the probability of adverse health effects.
Sayed Metwally
Egyptian Atomic Energy Authority
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This page is a summary of: Environmental impact assessment of phosphate fertilizers and phosphogypsum waste: Elemental and radiological effects, Microchemical Journal, May 2019, Elsevier,
DOI: 10.1016/j.microc.2019.02.001.
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