Lyla Lindsey
A tiny radioactive capsule containing Caesium-137 was found in Western Australia in February 2023, after going missing during transport in January. The capsule, which was being transported by road from a Rio Tinto mine site to Perth, posed a significant public health risk, with authorities warning that exposure could cause radiation burns or sickness. The search for the capsule involved multiple government agencies and specialist radiation detection equipment, and it was eventually located by a search vehicle travelling on the Great Northern Highway. The discovery brought attention to the regulations and penalties for mishandling radioactive materials in Western Australia.
| Characteristics | Values |
|---|---|
| Date of discovery | 1 February 2023 |
| Date of disappearance | Between 10 and 16 January 2023 |
| Size of the capsule | 6mm x 8mm |
| Contents of the capsule | 19 gigabecquerels of Caesium-137 |
| Danger to humans | Can cause serious burns, radiation sickness, and potentially deadly cancer risks |
| Search team | More than 100 personnel, including members of the Australian Radiation Protection and Nuclear Safety Agency, WA Police, DFES, and the Australian Nuclear Science and Technology Organisation |
| Search duration | 7 days |
| Search area | 1,400 kilometres (870 miles) |
| Search methods | Radiation detection equipment, handheld radiation device |
| Location found | Side of the road, 74 kilometres (46 miles) south of Newman, Western Australia |
| Action taken after discovery | A 20-metre exclusion zone was set up, and the capsule was transferred to a lead container before being taken to a secure location |
| Cause of disappearance | Vibrations from the road, potentially causing the bolts to loosen and allowing the capsule to fall through gaps in the casing |
| Owner of the capsule | Mining company Rio Tinto |
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What You'll Learn
The capsule was found by the roadside
The radioactive capsule that was lost in the Australian outback was found by the roadside. The capsule was located in a remote location, two meters from the side of a road, 74 kilometres south of the mining town of Newman, on the Great Northern Highway. The search operation spanned 1,400 kilometres, from the Outback to metropolitan Perth, and took seven days to yield success.
The capsule was initially detected by staff inside a car travelling at 70 kilometres per hour past the capsule. A handheld radiation device was then used to find the capsule's exact location. The search crew vehicle detected radiation emitted by the capsule, which was emitting radiation equivalent to 10 X-rays an hour.
The capsule was found in the "best possible area", according to DFES Commissioner Darren Klemm, due to its remote location, and to find it in such a short amount of time was "amazing". The search operation involved more than 100 personnel, including members of the Incident Management Team, the Department of Fire and Emergency Services, and other government agencies such as the Department of Defence, the police, and the Australian Radiation Protection and Nuclear Safety Agency.
The capsule, which was roughly the size of a pea, posed a significant public health risk as it contained radioactive Caesium-137. Exposure to this substance could cause radiation burns, severe illness, and potentially deadly cancer risks. Authorities warned people not to touch or approach the capsule if found, and to observe a safe distance of at least five meters.
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It posed a significant health risk
The radioactive capsule that was found in Australia posed a significant health risk. The capsule contained Caesium-137, a substance that can cause serious health problems for people who come into close contact with it. These health problems include radiation burns, radiation sickness, and potentially deadly cancer risks. Health authorities warned that standing within a metre of the capsule would be equivalent to receiving 10 X-rays in an hour, and that touching or approaching the capsule could result in skin damage and burns.
The capsule was discovered missing from a package sent from a Rio Tinto mining site in northern Western Australia to the capital, Perth. It was later found by authorities on the side of a remote highway, two meters from the road, just south of the small mining town of Newman. The search for the capsule spanned 1,400 kilometers and involved multiple government agencies, including the Department of Fire and Emergency Services, the Department of Defence, the police, and the Australian Radiation Protection and Nuclear Safety Agency.
The capsule was approximately 6mm in diameter and 8mm long, or about the size of a pea. It was detected by a search vehicle using specialized radiation detection equipment, which picked up the radiation emitted by the capsule. A handheld radiation device was then used to locate the capsule on the ground. The capsule was found in a "best-case scenario" location due to its remote location, and authorities believed it had not moved since it fell from the truck.
The loss of the capsule sparked an investigation into how it went missing. Rio Tinto, the mining company that owned the capsule, apologized for the incident and conducted radiological surveys of the areas where the capsule had been. They also offered to pay for the search costs. The Western Australian government stated that it would review the penalties for mishandling radioactive materials, as the current maximum penalty of a $1,000 fine was considered too low.
The recovery of the capsule was a testament to the skill and tenacity of the search team, and it highlighted the importance of safe handling, packing, and transporting radioactive materials. The incident served as a reminder of the potential dangers posed by radioactive substances and the need for strict protocols and control measures to ensure the safety of the public and the environment.
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Caesium-137 is dangerous
In early February 2023, a missing radioactive capsule containing caesium-137 was found on a remote road in Western Australia. The capsule was being transported from a mining site to Perth when it went missing. The incident sparked a massive search operation, with authorities warning the public not to approach the capsule as it posed a serious health risk.
Caesium-137 is a radioactive isotope produced by nuclear fission. It has a number of practical uses, including medical devices, gauges, and industrial applications. However, it is essential to recognize the dangers associated with this substance. Caesium-137 is dangerous due to its highly radioactive nature. It can cause serious health problems, including radiation burns, radiation sickness, and an increased risk of cancer. The level of danger depends on the amount of exposure and the concentration of Caesium-137.
When Caesium-137 is present in large, concentrated amounts, as in radiation therapy units and industrial gauges, it becomes highly hazardous. If these devices are compromised and the Caesium-137 inside is released, it can lead to severe consequences. External exposure to large amounts of Caesium-137 can induce radiation burns and acute radiation sickness, and it may even be deadly. The radiation emitted by Caesium-137 consists of high-energy gamma radiation, which is extremely harmful to human health.
Additionally, internal exposure to Caesium-137 is extremely detrimental. If ingested or inhaled, the radioactive material is distributed in the soft tissues, particularly muscle tissue. This internal contamination exposes the body to beta particles and gamma radiation, further elevating the risk of cancer. The biological behaviour of Caesium-137 in the body resembles that of potassium and rubidium, distributing uniformly throughout the body. Animal experiments have demonstrated the deadly effects of Caesium-137, with mice and dogs experiencing high fatality rates when exposed to certain doses.
The handling and transportation of Caesium-137 are highly regulated due to its hazardous nature. Strict protocols are in place to ensure safe storage, packing, and transportation. The incident in Western Australia highlighted the potential consequences of failing to adhere to these safety measures. While the capsule was eventually found, the potential impact on public health and the environment served as a stark reminder of the critical importance of responsible Caesium-137 management.
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The search operation was extensive
The search operation to find the missing radioactive capsule in Australia was extensive, covering a 1,400-kilometer (870-mile) stretch of road from the Outback to metropolitan Perth. The search spanned multiple agencies and organizations, including the Department of Fire and Emergency Services, the Australian Radiation Protection and Nuclear Safety Agency, WA Police, the Australian Nuclear Science and Technology Organisation, the Department of Defence, and the Australian Defence Force.
The search involved the use of specialized radiation detection equipment and vehicles traveling along the road to detect any emitted radiation. The search crews included experts from across the country, such as nuclear science specialists, the emergency management agency, and radiation protection officials. Firefighters were also involved, foraying from their usual summer tasks to assist in the search.
The challenging nature of the search was likened to finding a needle in a haystack, given the small size of the capsule, which was roughly a quarter of an inch in diameter and a third of an inch tall, or about the size of a pea. The capsule was eventually found on February 1, 2023, seven days after the search began, by a search crew vehicle traveling past at 70 kilometers per hour (43 miles per hour).
The successful recovery of the capsule was attributed to the collaboration between various agencies and the specialized equipment used to detect radiation and locate the capsule. The discovery of the capsule in such a short amount of time was considered remarkable, and it highlighted the coordinated efforts of the search operation.
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Rio Tinto will not be fined
In January 2023, a radioactive capsule containing caesium-137 went missing in Western Australia. The capsule was being transported from Rio Tinto's Gudai-Darri mine site to Perth, a distance of 1,400 kilometers (870 miles).
The capsule was eventually found on February 1, 2023, by authorities using radiation detection equipment. It was located on the side of a remote road, 74 kilometers (46 miles) south of the mining town of Newman.
While the recovery of the capsule was a success, questions arose regarding the handling of radioactive materials and the potential risks involved. Caesium-137 is a highly radioactive substance that can cause serious health issues, including burns, radiation sickness, and potentially deadly cancer risks if exposed to it.
Despite the serious nature of the incident, Rio Tinto was not fined for the loss of the capsule. The Government of Western Australia stated that "no breaches of the radiation safety act had been identified" and that there was no failure of typical control measures implemented for such situations. However, the incident has sparked discussions on reviewing the penalties for mishandling radioactive materials, with Prime Minister Anthony Albanese criticizing the currently low penalty for losing radioactive substances in Western Australia.
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Frequently asked questions
Yes, the radioactive capsule was found on February 1, 2023, after a challenging search operation that spanned 1,400 kilometers.
The capsule was found on the side of a remote road in Western Australia, about 2 meters from the road and 74 kilometers south of the mining town of Newman.
The capsule, which contained Caesium-137, was being transported from the Gudai-Darri mine in Western Australia to a depot in Perth when it went missing.
The capsule was placed in a 20-meter exclusion zone and was to be transferred to a lead container before being taken to a secure location. An investigation was launched to determine how the capsule was lost, and the Government of Western Australia stated it would review the penalties for mishandling radioactive materials.
