Danish workers involved in the clean-up operation claimed long-term health problems resulted from their exposure to the radiation.
Although they did not work at Camp Hunziker, the Danes worked at the Tank Farm where the contaminated ice was collected, in the port where the contaminated debris was shipped from, and they also serviced the vehicles used in the clean-up.
It is also possible that they were exposed to radiation in the local atmosphere.
Many of the workers surveyed in the years following Project Crested Ice reported health problems.
A 1995 survey found 410 deaths by cancers out of a sample of 1,500 workers.

In 1986, Danish Prime Minister Poul Schlüter commissioned a radiological examination of the surviving workers.
The Danish Institute for Clinical Epidemiology concluded 11 months later that cancer incidents were 40 percent higher in Project Crested Ice workers than in workers who had visited the base before and after the operation.
The Institute of Cancer Epidemiology found a 50 percent higher cancer rate in the workers than in the general population, but could not conclude that radiation exposure was to blame.

In 1987, almost 200 former cleanup workers took legal action against the United States.
The action was unsuccessful, but resulted in the release of hundreds of classified documents.
The documents revealed that USAF personnel involved in the clean-up were not subsequently monitored for health problems, despite the likelihood of greater exposure to radiation than the Danes.
The United States has since instigated regular examinations of its workers.
In 1995, the Danish government paid 1,700 workers compensation of 50,000 kroner each.

Danish workers' health has not been regularly monitored, despite a European Court directive to the Danish government to begin examinations in the year 2000, and a May 2007 European Parliament resolution instructing the same.
In 2008, the Association of Former Thule Workers took the case to the European courts.
The petitioners claimed that Denmark's failure to comply with the rulings led to delays in detecting their illnesses, resulting in worsened prognoses.
The country joined the European Atomic Energy Community in 1973, and is therefore not legally bound by the European treaty with respect to events in 1968: "When the accident occurred, Denmark was not a Member State and could not therefore be considered as being bound by the Community legislation applicable at that time.
The obligations of Denmark towards the workers and the population likely to be affected by the accident could only flow from national legislation."

The Danish government rejected a link between the accident and long-term health issues.
Dr. Kaare Ulbak of the Danish National Institute of Radiation Protection said, "We have very good registers for cancer incidents and cancer mortality and we have made a very thorough investigation."
The workers said the lack of proof was attributable to the lack of appropriate medical monitoring.
As of November 2008, the case has been unsuccessful.
 A 2011 report by the Danish National Board of Health found that "the total radiation dose for representative persons in the Thule area for plutonium contamination resulting from the 1968 Thule accident is lower than the recommended reference level, even under extreme conditions and situations."
Danish workers involved in the clean-up operation claimed long-term health problems resulted from their exposure to the radiation. Although they did not work at Camp Hunziker, the Danes worked at the Tank Farm where the contaminated ice was collected, in the port where the contaminated debris was shipped from, and they also serviced the vehicles used in the clean-up. It is also possible that they were exposed to radiation in the local atmosphere. Many of the workers surveyed in the years following Project Crested Ice reported health problems. A 1995 survey found 410 deaths by cancers out of a sample of 1,500 workers.
In 1986, Danish Prime Minister Poul Schlüter commissioned a radiological examination of the surviving workers. The Danish Institute for Clinical Epidemiology concluded 11 months later that cancer incidents were 40 percent higher in Project Crested Ice workers than in workers who had visited the base before and after the operation. The Institute of Cancer Epidemiology found a 50 percent higher cancer rate in the workers than in the general population, but could not conclude that radiation exposure was to blame.
In 1987, almost 200 former cleanup workers took legal action against the United States. The action was unsuccessful, but resulted in the release of hundreds of classified documents. The documents revealed that USAF personnel involved in the clean-up were not subsequently monitored for health problems, despite the likelihood of greater exposure to radiation than the Danes. The United States has since instigated regular examinations of its workers. In 1995, the Danish government paid 1,700 workers compensation of 50,000 kroner each.
Danish workers' health has not been regularly monitored, despite a European Court directive to the Danish government to begin examinations in the year 2000, and a May 2007 European Parliament resolution instructing the same. In 2008, the Association of Former Thule Workers took the case to the European courts. The petitioners claimed that Denmark's failure to comply with the rulings led to delays in detecting their illnesses, resulting in worsened prognoses. The country joined the European Atomic Energy Community in 1973, and is therefore not legally bound by the European treaty with respect to events in 1968: "When the accident occurred, Denmark was not a Member State and could not therefore be considered as being bound by the Community legislation applicable at that time. The obligations of Denmark towards the workers and the population likely to be affected by the accident could only flow from national legislation."
The Danish government rejected a link between the accident and long-term health issues. Dr. Kaare Ulbak of the Danish National Institute of Radiation Protection said, "We have very good registers for cancer incidents and cancer mortality and we have made a very thorough investigation." The workers said the lack of proof was attributable to the lack of appropriate medical monitoring. As of November 2008, the case has been unsuccessful.  A 2011 report by the Danish National Board of Health found that "the total radiation dose for representative persons in the Thule area for plutonium contamination resulting from the 1968 Thule accident is lower than the recommended reference level, even under extreme conditions and situations."
1968 Thule Air Base B-52 crash