title: [Radioecological research of the Irtysh-River's and Ob-River's water, base and flood depositions].
abstract: The radioecological research of Irtysh-river and Ob-river was held. The content of 137Cs in Irtysh water was compounded 0.62-1.23 Bq/m3, in Ob-- 0.24-0.27 Bq/m3, and the one of 90Sr in Irtysh-- 10-20 Bq/m3, and in Ob-- 5-10 Bq/m3, that is much lower than the permissible sanitary-hygienic norms for the population. The 137Cs stores density on Irtysh-river input lease was compounded 2.7 kBq/m2, is almost in 11 times slashed downstream and is peer 245 kBq/m2 before the Irtysh-river lockin. The 90Sr stores density also was slashed in surveyed leases with 212 down to 106 Bq/m2. Two variants of integrated stores of 137Cs and of 90Sr in flood of the Irtysh-river was held. The balance calculation of annual radionuclides sinks confirms the dominant amount of 137Cs and of 90Sr in downstream Ob-river leases acts now on the Ob's sleeve, instead of from the Irtysh-river as it was supposed earlier. The 137Cs medial annual inflow from the Ob's sleeve almost is in 2 times, and the 90Sr inflow is in 2.3 times more, than are acts from Irtysh-river sleeve.
authors.forename: A V
authors.initials: AV
authors.lastname: Trapeznikov
authors.forename: A V
authors.initials: AV
authors.lastname: Korzhavin
authors.forename: V N
authors.initials: VN
authors.lastname: Nikolkin
authors.forename: V N
authors.initials: VN
authors.lastname: Trapeznikova
authors.forename: V I
authors.initials: VI
authors.lastname: Migunov
mesh_terms: D002588:Cesium Radioisotopes / Q000032:analysis*; D004190:Disasters; D004787:Environmental Pollution; D019015:Geologic Sediments / Q000737:chemistry; D011834:Radiation Monitoring / Q000379:methods; D045483:Rivers / Q000737:chemistry*; D012800:Siberia; D013326:Strontium Radioisotopes / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis; D014878:Water Pollution, Radioactive
chemical_list: D002588:Cesium Radioisotopes; D013326:Strontium Radioisotopes; D014875:Water Pollutants, Radioactive