Radiolead Pb-210 and Po-210/Pb-210 activity ratios in dogs' hair

摘要

The aim of this study was to determine activity concentrations of radiolead Pb-210 as well as Po-210/Pb-210 activity ratios in dog hair. The objectives of this research were also to investigate the utility of domestic animal hair as a noninvasive indicator of metal exposure for radiotoxic, naturally occurring Pb-210 and find the correlations between Pb-210 concentration in hair and age, gender, hair type or diet of analyzed animals. The highest Pb-210 concentrations were measured in a 2-year-old Shih Tzus (9.82 +/- 0.53 Bq kg(-1) dw(-1)) and a 2-year-old Bichon Maltese (8.09 +/- 0.42 Bq kg(-1) dw(-1)), both longhair males, while the lowest was found in a 15-year-old Yorkshire Terrier (0.44 +/- 0.02 Bq kg(-1) dw(-1)), small longhair male as well. As results showed, mainly dog hair color as well as their age and gender influenced the differences in the values of Pb-210 concentrations in analyzed hair samples. Also the values of activity ratios of Po-210/Pb-210 in analyzed dog hair samples were calculated and obtained results were similar to those observed in human hair.