210Po and 210Pb in the food chain lichen-reindeer-human

210Po, 210Pb, 40K and 137Cs in edible wild berries and mushrooms and ingestion doses to man from high consumption rates of these wild foods

“…and 10 0 for Russula spp.. These activity ratios are in good agreement with previously reported values in the few studies where activity concentrations of both 210 Pb and 210 Po have been determined in mushrooms (Solatie et al, 2006;Vaaramaa et al, 2009).…”

“…and Russula spp. from Northern and Southern Finland (Solatie et al, 2006;Vaaramaa et al, 2009), though in general lower than values reported for various species from France (Kirchner and Daillant, 1998) and Poland (Malinowska et al, 2006).…”

“…Activity concentrations of 210 Po and 210 Pb in berries were low in all cases and showed little variation between sites for the same species (Supplementary Table S3 (Solatie et al, 2006;Vaaramaa et al, 2009) and for blackberry (Rubus spp. ), elderberry (Sambucus spp.)…”

“…Amundsen et al, 1996;Kostiainen, 2007;Malinowska et al, 2006), only a limited number of studies have reported on the accumulation of the naturally occurring radionuclides 210 Po and 210 Po in the same food items. Even more noteworthy, only a few of these studies have actually determined activity concentrations of both 210 Po and 210 Pb within the same samples (Green et al, 2002;McDonald et al, 1999;Solatie et al, 2006;Vaaramaa et al, 2009), resulting in a lack of information on 210 Po/ 210 Pb activity ratios in wild foods.…”

Transfer of Natural Radionuclides in Terrestrial Food Chains—A Review of Investigations in Finland

“…The activity concentration of 210 Pb in ground lichen (Cladonia sp.) was 250 Bq/kg d.w. in western Lapland in 1980 and 170 Bq/kg d.w. in eastern Lapland in 2004 [16].…”