Article

Doses from Cs-137 and Sr-90 to Czech population due to milk consumption

¹ NRPI, branch Ostrava, Syllabova 21, 703 00 Ostrava 3, Czech Republic
² NRPI, Bartoškova 21, 140 00 Praha 4, Czech Republic

^* Corresponding author: miluse.bartuskova@sujb.cz

Received: 3 June 2016
Accepted: 3 May 2017

Abstract

Activity concentrations of ¹³⁷Cs and ⁹⁰Sr in milk have been monitored in the Czech Republic on a long-term basis. The annual geometric means of ¹³⁷Cs activity concentrations in milk range from 12 Bq.L⁻¹ in 1986 to 0.02 Bq.L⁻¹ in 2014. The annual geometric means of ⁹⁰Sr activity concentrations range from 0.69 Bq.L⁻¹ in 1965 to 0.02 Bq.L⁻¹ in 2014. The values of effective and environmental half-lives in milk were calculated for both radionuclides from the annual geometric means and their temporal trends. Doses from both radionuclides due to milk ingestion were estimated.