The radiological zoning of Chornobyl contaminated areas was one of the essential elements of social and radiation protection. The zoning was based on estimates of annual committed effective doses to members of the public and on the levels of radionuclide deposition density. In 1991. 86 settlements were classified as associated with the zone of unconditional (mandatory) resettlement. https://www.shopwildwestes.shop/product-category/art-work-prints/