values of annual intake by consumption may be used as the basis for calculating MLVj,ing internal radiation due to the intake of radionuclides into an organism by consumption and may not be used for determining the concentration of radionuclides in drinking water and food in a working environment. For the intake of more radionuclides into an organism also exposed to external ionising radiation, the lower limit values of annual intake shall comply with the condition expressed by the following method: is the effective dose of intake of radionuclide i by consumption or inhalation, MLVi⋅e(g)i is the effective dose limit from external radiation, Ez,m is the sum of all limit intakes of j radionuclides from consumption and inhalation excluding Σj≠i, i. Article 15 (Derived concentration values) The derived concentration of an individual radionuclide in air, water or food shall be calculated as the limit value of the annual intake or volume of inhaled air Vz MLVj,inh MLVj,ing, (m3), volume of consumed water (m3) or mass of consumed food (kg), by the following Vv mh method: or or , where IK is derived concentration value. values of contamination may be the same as their derived concentration values if only one transmission path of the radionuclide in question is the cause of contamination. If an area is contaminated with different radionuclides at the same time, lower derived limit values of contamination must be determined, considering the following inequality: , where is the concentration of radionuclide i in air or drinking water. Ki Article 16 (Authorised and operative dose constraints) If, by technically possible or economically feasible measures, while considering social factors, it is not possible to provide conditions where radioactive contamination is lower than derived limit values of concentration under the preceding Article, the length of time people are exposed to ionising radiation must be reduced by determining authorised or operative dose constraints and values of radiation quantity. Authorised and operative limit values for effective dose rates and for derived concentration Ėi,z values are calculated by applying lower values for individual limit values (Em, or IK MLV Ez,m) by equations under Articles 9, 14 and 15 of this Decree as well as shorter exposure times to ionising radiation or proportionate value of inhaling contaminating air consuming Vz, contaminating water or contaminated food Vv mh. Article 17 (Limit values of air contamination)
values of annual intake by consumption MLVj,ing may be used as the basis for calculating internal radiation due to the intake of radionuclides into an organism by consumption and may not be used for determining the concentration of radionuclides in drinking water and food in a working environment. For the intake of more radionuclides into an organism also exposed to external ionising radiation, the lower limit values of annual intake shall comply with the condition expressed by the following method: MLVi⋅e(g)i is the effective dose of intake of radionuclide i by consumption or inhalation, Ez,m is the effective dose limit from external radiation, Σj≠i, is the sum of all limit intakes of j radionuclides from consumption and inhalation excluding i. Article 15 (Derived concentration values) The derived concentration of an individual radionuclide in air, water or food shall be calculated as the limit value of the annual intake MLVj,inh or MLVj,ing, volume of inhaled air Vz (m3), volume of consumed water Vv (m3) or mass of consumed food mh (kg), by the following method: or or , where IK is derived concentration value. values of contamination may be the same as their derived concentration values if only one transmission path of the radionuclide in question is the cause of contamination. If an area is contaminated with different radionuclides at the same time, lower derived limit values of contamination must be determined, considering the following inequality: , where Ki is the concentration of radionuclide i in air or drinking water. Article 16 (Authorised and operative dose constraints) If, by technically possible or economically feasible measures, while considering social factors, it is not possible to provide conditions where radioactive contamination is lower than derived limit values of concentration under the preceding Article, the length of time people are exposed to ionising radiation must be reduced by determining authorised or operative dose constraints and values of radiation quantity. Authorised and operative limit values for effective dose rates Ėi,z and for derived concentration values IK are calculated by applying lower values for individual limit values (Em, MLV or Ez,m) by equations under Articles 9, 14 and 15 of this Decree as well as shorter exposure times to ionising radiation or proportionate value of inhaling contaminating air Vz, consuming contaminating water Vv or contaminated food mh. Article 17 (Limit values of air contamination)
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