137Cs contamination in tea and yerba mate in South America

Radionuclide concentrations in samples of medicinal herbs and effective dose from ingestion of137Cs and natural radionuclides in herbal tea products from Serbian market

“…137 Cs activity concentrations ranged from 0.3 to 8.9 Bq/kg, except in a sample of Buckthorn with 82.5 Bq/kg. The values of 137 Cs concentrations in 17 samples were generally at the same level as in other regions of Europe and worldwide [15][16][17][18]. The higher concentration in the sample of Buckthorn can be explained by the geographic origin of the sample, which was imported from Ukraine.…”

Short-term seasonal variability in 7Be wet deposition in a semiarid ecosystem of central Argentina

“…Counting periods were typically one day. For this geometry, an absolute photo-peak detection efficiency was performed following the method described by Di Gregorio et al (2004). A mixture of the natural occurring long-lived isotopes, 176 Lu, 138 La, and 40 K was used.…”

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“…Kılıç et al (2006) found that 40 K activity concentrations ranged from 446 ± 12 to 523 ± 14 Bq kg -1 . Görür et al (2011) found that Gregorio et al (2004) found that 40 K activity concentrations ranged from 404 ± 80 to 877 ± 180 Bq kg -1 . 210 Pb and 40 K radioactivity concentrations diagram are shown in the Figure 2.…”