title: Assessing radiation exposure of herbaceous plant species at the East-Ural Radioactive Trace.
abstract: The East-Ural Radioactive Trace (EURT) is a result of the Mayak Production Association accident that occurred in 1957 in Russia. Radiological assessment improves the interpretation of biological effects of exposure to ionizing radiation. Therefore a modeling approach was used to estimate dose rates on Leonurus quinquelobatus, Silene latifolia, Stellaria graminea and Bromus inermis. Soil-to-organism transfer parameter values are delivered from empirical data of (90)Sr and (137)Cs soil and vegetative plant mass activity concentrations. External and internal whole-body dose rates were calculated using deterministic (The ERICA Tool-Tier 2 and R&D 128/SP1a) and probabilistic (The ERICA Tool-Tier 3) methods. The total dose rate for herbs was under 100 μGy h(-1) at the most polluted site. The total absorbed dose rates increased 43-110 times (Tier 3) for different herbaceous plant species along the pollution gradient. Based on these data, it can be concluded that herbaceous plant populations currently exist under low-level chronic exposure at the EURT area.
authors.affiliation: Institute of Plant & Animal Ecology, Ural Branch, Russian Academy of Sciences, 8 Marta, 202, Yekaterinburg 620144, Russian Federation. elina@ipae.uran.ru
authors.forename: Elina
authors.initials: E
authors.lastname: Karimullina
authors.forename: Elena
authors.initials: E
authors.lastname: Antonova
authors.forename: Vera
authors.initials: V
authors.lastname: Pozolotina
mesh_terms: D002588:Cesium Radioisotopes / Q000032:analysis*; D019684:Magnoliopsida / Q000737:chemistry*; D008962:Models, Theoretical; D011834:Radiation Monitoring; D018788:Radioactive Hazard Release; D012426:Russia; D012984:Software; D012990:Soil Pollutants, Radioactive / Q000032:analysis*; D013326:Strontium Radioisotopes / Q000032:analysis*
chemical_list: D002588:Cesium Radioisotopes; D012990:Soil Pollutants, Radioactive; D013326:Strontium Radioisotopes
keywords: ERICA; East-Ural Radioactive Trace; Ionizing radiation; Non-human biota; R&D128/SP1a