Historical evolution of heavy metal pollution and recent records in Lake Karagol sediment cores using Pb-210 models, western Turkey
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In present study, Activity concentrations of Pb-210 (Polonium-210) were indirectly determined by utilizing alpha spectrometry. Sediment chronology was obtained by using Pb-210 (CF; CS, CRS, CIC) models and corrected via residence time of the Pb-210 in each core for Lake Karagol. Average residence times of the Pb-210 is 6.5, 4.8, 5.3 months and average sedimentation rate is 0.366, 0.322, 0.237 cm year(-1) in S-1, S-2, S-3 stations respectively. According to atmospheric Pb-210 flux (24 mBq cm(-2) year(-1)) and Po-210/Pb-210 ratio values, we determine the soil erosion in the lake catchment. The ranges of ratios in the sediment cores obtained from Lake Karagol are 1.4-1.3, 1.5-1.2, 1.3-1.1 in S-1, S-2, S-3 stations respectively. In terms of Enrichment Factor, heavy metal concentrations are lower than the antropogenic values. So we can say that the elements originate from the continental supply. In other words there is not metal pollution in the lake.
Açıklama
Anahtar Kelimeler
Sedimentation rate, Residence time of the Pb-210, Natural (Po-210, Pb-210) radionuclides, Heavy metal pollution
Kaynak
Journal of Radioanalytical and Nuclear Chemistry
WoS Q Değeri
Q2
Scopus Q Değeri
Cilt
314
Sayı
3
