title: Kremlin says no proof Russia was source of radioactive pollution
text: MOSCOW (Reuters) - There has to date been no confirmation from any Russian government agencies that there was an incident on Russian soil that could have caused raised levels of pollution from a radioactive isotope, Kremlin spokesman Dmitry Peskov said on Wednesday. Russia s meteorological service said on Tuesday it had measured pollution of the ruthenium 106 isotope at nearly 1,000 times normal levels in the Ural mountains.  