“Radiation sensors in Stockholm have detected higher-than-usual but still harmless levels of isotopes produced by nuclear fission, probably from somewhere on or near the Baltic Sea, a body running a worldwide network of the sensors said on Friday,” Reuters reports.
The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) confirmed the higher than normal activity.
As Reuters reports , the Stockholm monitoring station “detected 3 isotopes; Cs-134, Cs-137 & Ru-103 associated with Nuclear fission at higher than usual levels,”
The additional particles were picked up by the sensors last Monday and Tuesday, and confirmed by the nuclear monitoring organization.
“These are certainly nuclear fission products, most likely from a civil source,” the CTBTO said in a statement. “We are able to indicate the likely region of the source, but it’s outside the CTBTO’s mandate to identify the exact origin.”