Determination of ^(210)Po and ^(210)Pb depositions in lichen and soil samples collected from K?prüba??-Manisa,Turkey

üIn this study, we aimed to determine the accumulations of ^(210) Po and ^(210) Pb in soil and lichen samples in K? prü bas??. The K? prü bas?? district is home to the largest uranium deposits in Turkey. To date, there has been no study recorded in the literature related to ^(210) Po and ^(210) Pb depositions in lichens in K? prü bas??. Six different lichen species(Cladonia convoluta, Parmelina tiliacea, Physcia stellaris, Pleurosticta acetabulum, Xanthoparmelia conspersa, and Xanthoria parietina) as well as soil samples were collected from seven sampling locations around K? prü bas??. Lichens were used as biomonitors for ^(210) Po and ^(210) Pb deposition. The ^(210) Po and ^(210) Pb activity concentrations were measured in all the samples by alpha spectrometry. The activity concentrations in the lichen samples ranged from 64 to 577 Bq kg^(-1) with an average of 266 Bq kg^(-1) for ^(210) Po and from 78 to 565 Bq kg^(-1) with an average of 333 Bq kg^(-1) for ^(210) Pb. The activity ratios of ^(210) Po/ ^(210) Pb ranged from 0.80 to 1.99. In the lichen species,the mean ^(210) Po activity values varied from 154 Bq kg^(-1) in Pleurosticta acetabulum to 390 Bq kg^(-1) in Xanthoparmelia conspersa. The range of the mean ^(210) Pb activity was between 153 Bq kg^(-1) in Cladonia convoluta and 378 Bq kg^(-1) in Parmelina tiliacea. In the soil samples, ^(210) Po and ^(210) Pb activity concentrations were ranged from14 to 1268 Bq kg^(-1) and from 19 to 1113 Bq kg^(-1),respectively. While the values of ^(210) Po and ^(210) Pb measured in the lichen samples are comparable with those of the literature, the results of ^(210) Po and ^(210) Pb in the soil taken from the uranium mine are higher than the results of the literature studies.

In this study, we aimed to determine the accumulations of 210 Po and 210 Pb in soil and lichen samples in Koprübassl. The Koprübassl district is home to the largest uranium deposits in Turkey. To date, there has been no study recorded in the literature related to 210 Po and 210 Pb depositions in lichens in Koprübassl. Six different lichen species（Cladonia convoluta, Parmelina tiliacea, Physcia stellaris, Pleurosticta acetabulum, Xanthoparmelia conspersa, and Xanthoria parietina） as well as soil samples were collected from seven sampling locations around Koprübassl. Lichens were used as biomonitors for 210 Po and 210 Pb deposition. The 210 Po and 210 Pb activity concentrations were measured in all the samples by alpha spectrometry. The activity concentrations in the lichen samples ranged from 64 to 577 Bq kg-1 with an average of 266 Bq kg-1 for 210 Po and from 78 to 565 Bq kg-1 with an average of 333 Bq kg-1 for 210 Pb. The activity ratios of 210 Po/ 210 Pb ranged from 0.80 to 1.99. In the lichen species,the mean 210 Po activity values varied from 154 Bq kg-1 in Pleurosticta acetabulum to 390 Bq kg-1 in Xanthoparmelia conspersa. The range of the mean 210 Pb activity was between 153 Bq kg-1 in Cladonia convoluta and 378 Bq kg-1 in Parmelina tiliacea. In the soil samples, 210 Po and 210 Pb activity concentrations were ranged from14 to 1268 Bq kg-1 and from 19 to 1113 Bq kg-1,respectively. While the values of 210 Po and 210 Pb measured in the lichen samples are comparable with those of the literature, the results of 210 Po and 210 Pb in the soil taken from the uranium mine are higher than the results of the literature studies.