Ocean Acidification-Mediated Food Chain Transfer of Polonium between Primary Producers and Consumers.

Phytoplankton and zooplankton are key marine components that play an important role in metal distribution through a food web transfer. An increased phytoplankton concentration as a result of ocean acidification and warming are well-established, along with the fact that phytoplankton biomagnify 210Po by 3−4 orders of magnitude compared to the seawater concentration. This experimental study is carried out to better understand the transfer of polonium between primary producers and consumers.

Determination and distribution of Po in different morphological parts of tobacco plants and radiation dose assessment from cigarettes in Turkey.

Both sides of tobacco leaves accumulate Po through their sticky hairs (trichomes) by means of diffusive deposition. It is known that tobacco leaves may contain high amounts of Po concentrations. However, there is less information about radionuclides in tobacco plants.