## 3 Results
Our selection of the specific organs for the evaluation of their ELCR was based on the sensitivity of the human tissues to radiation [98], the availability of these organs in the quoted list of the NCI tool, and the volume that they occupy in the human body; in the latter criterion we selected such organs so that they are not extended (such as the bowel) and correspond to a certain height from the ground (for the use of a certain value of dose, according to Figures 2 and 4). More analytically (see Table 1), the first calculation is about an adolescent, 16 years old at the year of the Chernobyl nuclear accident, exposed to a 30-day irradiation because his family--for various reasons--delayed to evacuate their homesated in the near zone of 3700 kBq-m\({}^{-2}\): assessing a total dose of 3.44 mGy for all those days of exposure, we evaluate an ELCR for his prostate gland equal to 3.91 \(\times\) 10\({}^{-5}\), which is considered high according to the World Health Organization [99], the Canadian Council of Ministers of the Environment [100] and the New Zealand Ministry for the Environment [101]. In the same way, the next examined case is that of a 60-year-old woman, living in the aforementioned zone, who refused to evacuate her home; considering a chronic exposure of 3.02 mGy for a period of 30 days, we assess an ELCR for her breast equal to 2.15 \(\times\) 10\({}^{-5}\), which is also considered high (according to the aforementioned criteria). The third case is that of a 16-year-old lady, who received only an acute dose of 0.1 mGy for only 1 day of exposure in the near zone before evacuating the contaminated area with her family; this dose yields an ELCR equal to 0.58 \(\times\) 10\({}^{-5}\) for her breast, which is considered as moderate. If, for the same young lady, we assess the ELCR for all her organs (in this case we considered an average height of 130 cm from the ground for her vital organs), we calculate a value of 2.4 \(\times\) 10\({}^{-5}\) which is considered high, while the corresponding value for leukemia is 0.08 \(\times\) 10\({}^{-5}\), considered low. Our next case is that of a 50-year-old cattleman who lived in the same area and promptly evacuated his ranch under the first governmental recommendations for the general public, but after some weeks returned to live again in his area at his own risk. This man, exposed to a 30-day-irradiation after the first days of his reinstallation of 3.20 mGy from the radiation under his feet, has an ELCR value for his pancreas equal to 0.66 \(\times\) 10\({}^{-5}\), which is considered as a moderate one. We then consider a 16-year-old lady, living in an area of the outer contaminated zone of 37 kBq m\({}^{-2}\), exposed to a 7-day-external irradiation of 8 mGy (due to a delay in her family's evacuation of their home) for whom we assess an ELCR for her ovaries equal to 0.005 \(\times\) 10\({}^{-5}\); this value is a low one. Our last case is that of a 30-year-old woman living those days in the contaminated zone of 555 kBq\(\cdot\)m\({}^{-2}\), who, for a 7-day-delay of evacuation, has been exposed to an external dose of 0.068 mGy, equivalent to a low ELCR value for her brain equal to 0.004 \(\times\) 10\({}^{-5}\). As a conclusion to all the previous calculations, it may be noticed that any exposition of an individual in the near zone of 3700 kBq\(\cdot\)m\({}^{-2}\) increases the risk of cancer at a moderate to high grade (only in the case of leukemia there is a low-risk grade estimation for exposed individuals in this zone, and this happens due to the selected short time of exposure, i.e., 1 day). The objective of this study is the calculation of the absorbed dose and the estimation of a critical marker for biological damage i.e. the one induced at the DNA of an individual exposed to the radiation emitted by the \({}^{137}\)Cs in the ground. In this way, we have isolated only one component of the total radiation that can affect the health of a human exposed to it after a nuclear accident and could lead to carcinogenesis.