April 1958 event, especially as distinguished from everyday exposure. Aftermath Longterm health effects are more measurable. Grave threats to long-term residents persist, with residents experiencing far higher rates of cancer, goiter, anemia, and other illnesses related to radiological exposure. Mailuu-Suu was found to be one of the 10 most polluted sites in the world in a study published in 2006 by the Blacksmith Institute. Annual spring flooding and the lack of maintenance pose a continued threat of further releases of radioactive material. In 1994, a new landslide temporarily dammed the Mailuu-Suu River. In 2002 a flood caused by a mudslide nearly submerged a tailings pit. The World Bank approved a US$5 million grant to reclaim the tailings pits in 2004, and approved an additional $1 million grant for the project in 2011. The United Nations Development Programme, and the European Bank for Reconstruction and Development have also funded programs. References Tailings dam failures Radioactively contaminated areas Radiation accidents and incidents 1958 mining disasters Mining in Kyrgyzstan 1958 in the Soviet Union Disasters in the Soviet Union 1958 disasters in the Soviet Union