Claim · model-written summary
Transition coefficient decreased 3.0 times at PSA 15.
Rhododendron tomentosumVerbatim
t0“Marsh Labrador Tea”
e0“in PSA 15 – by 3.0 times”
e1“maximum decrease in the magnitude of transition coefficient”
Title
Volodymyr Krasnov; О.О. Орлов; Oleh Zhukovskyi; et al. SSRN Electronic Journal 2020
Other claims from this paper (15)
- Observation The specific activity of 137Cs in above-ground phytomass decreased 1.2–1.4 times during the first four years.
- Observation After 10 years, phytomass 137Cs specific activity decreased 1.6–1.7 times.
- Observation After 16 years, phytomass 137Cs specific activity decreased 1.9–2.1 times.
- Observation After 21 years, phytomass 137Cs specific activity decreased 2.7–3.1 times.
- Observation After 27 years, phytomass 137Cs specific activity decreased 3.1–6.5 times.
- Observation Transition factors increased over time on all permanent sample areas.
- Observation Transition factors increased 1.2 times at PSA 11.
- Observation Transition factors increased 1.4 times at PSA 13.
- Observation Transition coefficient decreased 2.7 times at PSA 16.
- Observation Transition coefficient decreased 2.0 times at PSA 18.
- Observation Marsh Labrador tea has high 137Cs content in above-ground vegetative phytomass.
- Observation Its 137Cs content significantly exceeded admissible medicinal raw-material levels in 1991–2018.
- Observation At the most contaminated area, 137Cs content exceeded the admissible level 158.4 times in 1991.
- Observation At the most contaminated area, 137Cs content exceeded the admissible level 33.7 times in 2018.
- Observation Soil radioactive contamination density decreased 2.1–2.7 times over 27 years.