TY - JOUR ID - 788 TI - Ecological Risk Assessment for the Terrestrial Ecosystem under Chronic Radioactive Pollution JO - International Journal of Environmental Research JA - IJER LA - en SN - 1735-6865 AU - Lavrentyeva, G.V. AU - Mirzeabasov, O.A. AU - Synzynys, B.L. AD - Obninsk Institute for Nuclear Power Engineering, branch of the National Research Nuclear University MEPhI, Department of Ecology, Studgorodok,1, 249040 Obninsk, Kaluga region, Russian Federation Y1 - 2014 PY - 2014 VL - 8 IS - 4 SP - 961 EP - 970 KW - Radioactive waste storage KW - Sr-90 KW - Ecological risk DO - 10.22059/ijer.2014.788 N2 - A methodology of ecological risk assessment for the terrestrial ecosystem under chronicradioactive pollution of a biotope near a regional radioactive waste storage has been developed in terms of thecritical environmental loads analyzed. It consists of five stages: determination of effect indicators and assessmentof their values; establishment of reference species and indices; assessment and analysis of critical loads byplotting “dose-effect” dependencies; ecological risk assessment from critical loads versus permissible values;plotting of risk functions to calculate the expected adverse alterations in the ecosystem. Based on the resultsobtained the storage risk for a terrestrial ecosystem is considered to be inadmissible and this implies unstableconditions in the territory in the nearest future. The calculations and mapping have shown that in the territorystudied the area with excess critical loads is 48% for CFU and 61% for 90Sr accumulation coefficient. Theanalyzed risk functions give evidence of highly probable negative alterations in the tested ecosystem: 85% forCFU and 99% for 90Sr accumulation coefficient. UR - https://ijer.ut.ac.ir/article_788.html L1 - https://ijer.ut.ac.ir/article_788_5606c68c27f606e727c8e7eff30c406b.pdf ER -