Greenpeace radiation specialists Mai Suzuki and Laurence Bergot measuring at a school in Shimo-Tsushima in the exclusion zone of Namie, Fukushima prefecture, Japan, which is closed for people to return to. The official air monitoring device meaning a level of 0.8 microsieverts per hour. This school area had been decontaminated by the government in 2014/15. Greenpeace radiation survey at a home nearby area showed levels ranging from averages of 1.3 microsieverts per hour to a maximum of 5 microsieverts per hour. However, the Japanese government plans to open a small area of Tsushima as early as 2023. The levels of radiation measured by Greenpeace in this highly contaminated area mean that it will be many decades and beyond the end of the century before radiation levels will even approach government targets.