Half-lives of 90Sr and 137Cs

Detection of radioactive waste sites in the Chornobyl exclusion zone using UAV-based lidar data and multispectral imagery

“…In the ChEZ, various studies have been carried out to explore the impact of radioactive contamination on the vegetation. Because the half-lives of 137-Cs and 90-Sr are approximately 30 years (Flynn et al, 1965), these radioactive isotopes still exist in the soil of contaminated areas and have been absorbed by the vegetation. Bugai et al (2012) characterized the hydro-geological situation in the ChEZ and modeled groundwater transport to describe the migration of radionuclides.…”

UAV-based high-resolution remote sensing and machine learning for risk management in hazard and disaster areas

“…The impact of radioactive contamination on the vegetation in the ChEZ has been studied comprehensively. Undoubtedly, radioactive isotopes (mainly Cs-137 and Sr-90) still exist in the soil of contaminated areas due to their half-lives of approximately 30 years (Flynn et al, 1965). Moreover, the transportation of radionuclides in the groundwater was modelled by Bugai et al (2012), and the biogenic migration of radionuclides from subsurface storage into plants was described by Kashparov et al (2012).…”

“…In the ChEZ, various studies have been carried out to explore the impact of radioactive contamination on the vegetation. Because the halflives of Cs-137 and Sr-90 are approximately 30 years (Flynn et al, 1965), these radioactive isotopes still exist in the soil of contaminated areas and have been absorbed by the vegetation. Bugai et al (2012) characterized the hydro-geological situation in the ChEZ and modelled groundwater transport to describe the migration of radionuclides.…”