40 Years Later: Is Milk Still Radioactive? (birdsoutsidemywindow.org)

A blog post marks 40 years since the Chernobyl disaster and reviews evidence from a 2018 study showing that cows far from the plant were still producing radioactive milk in the 2000s/2010s, driven by long-lived cesium-137 contamination in soil. It notes that while air levels had improved, plants and then cattle could still take up cesium, and that mitigating the problem would require adding an expensive binding agent to feed. The author suggests the issue likely persists without treatment.