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Examination of radioactivity in edible liquids is very important because large amounts are taken into the body during the day. This scientific paper presents a comprehensive study on the gamma spectrometry analysis and health risk assessment of edible liquids. The study involved samples of various liquid products such as alcoholic beverages, juices, and milk. Milk is an important part of our regular diet for everyone, from newborns to adults, so we determined the active concentrations of radionuclides for both milk from farms directly and milk bought in a supermarket. The gamma spectrometry analysis was performed using a high-purity germanium detector to determine the concentration of natural and artificial radionuclides. The radioactivity of each sample is presented as the mean value of the measured sample from five different manufacturers. In conclusion, the gamma spectrometry analysis and health risk assessment of edible liquids demonstrated that the concentration of radionuclides in the selected liquid food products was not a major health concern. However, continuous monitoring and evaluation are recommended to ensure that the safety of the products is maintained within the permissible limits.

As mobile phones have become a necessity in modern society, and there is an increasing number of users of various ages, it is imperative to investigate the impact of mobile phone radiofrequency electromagnetic radiation (RF) on humans. Because the human head is one of the most exposed and sensitive organs in the body, this paper investigated the propagation of the electromagnetic (EM) field through it. Additionally, the Specific absorption rate (SAR) was examined to study how RF radiation affects the human head. A program code using the finite-difference time-domain (FDTD) method was created to simulate the propagation of RF radiation through the six layers that make up the human head (skin, fat, bone, dura mater, CSF, and brain). RF radiation at the following frequencies was investigated: 0.9 GHz, 1.8 GHz, 2.4 GHz, 3.35 GHz, and 4.5 GHz. Values of the thickness and parameters of the layers can also be changed in the program. It was discovered that the majority of the EM energy is absorbed in the skin of the human head.