Australia: The mining giant Rio Tinto has offered an apology that has caused a radiation notice in some regions of Western Australia as the search for a tiny radioactive capsule that vanished while being transported to a storage facility in Perth continues.
The small, silver-coloured capsule, measuring just 6 millimetres (0.24 inches) in width and 8 millimetres (0.31 inches) in length, was lost during transport from Rio Tinto’s Gudai-Darri mine near Newman, in the isolated Kimberley region, to a storage facility located about 1,400 kilometres (870 miles) away in Perth.
The tiny capsule, which contains Caesium-137, a radioactive isotope that generates radiation equivalent to 10 x-rays per hour, has been gone for an undetermined amount of time. The capsule left the site on 12th January 2023 and was reported missing to Rio Tinto on January 25 by the contractor employed by the mining firm. Two days later the general public was informed.
A Geiger counter was used to verify that the capsule was present inside the container before the device departed the facility, according to Rio Tinto. Authorities think that as the truck was being transported, the gadget slipped out of it.
Authorities have advised people to keep at least five metres (16 feet) away, and a radiation alert is still in effect in several areas of the sizable state. Health officials have cautioned that handling the capsule could result in radiation illness or burns. The capsule was secured within a box that was affixed on a pallet in compliance with the radioactive safety requirements and regulations, he continued.
Along 36 KM (22 miles) of the busy freight route, the state’s Department of Fire and Emergency Services has sent teams equipped with metal detectors and portable radiation detectors to search for the container. In order to pinpoint the exact path the driver travelled and the location of the truck’s last stop after leaving the mine, authorities are also using the truck’s GPS data. On 16th January 2023, it landed at the Perth depot.