In the aftermath of the Chernobyl and Fukushima nuclear disasters, millions were displaced, and once bustling communities became husks of their past selves. While the emptiness of these places is plain to see, radiation, the reason why so many choose not to return to areas declared safe by authorities, is invisible.

In areas of Russia and Japan that have been decontaminated by the government, allowing for people to move back, life has tried to continue but evidence of radiation remains.

Greg McNevin, a photographer working with the environmental group Greenpeace, set out to visualize the radiation that persists in many of these areas. The resulting project juxtaposes radiation data onto long exposure photographs from the affected regions.