The Swiss voice in the world since 1935

One thousand Swiss buildings could be contaminated with radium

radium dumped in construction site
In 2014, motorway construction workers came across around 120 kilos of radium dumped near the watchmaking city of Biel. Keystone

Nearly 1,000 watchmaking buildings and workshops in Switzerland could be contaminated by radium, a radioactive element that was used to add luminescence to watch dials and hands until the 1960s.

The study by the University of Bern, commissioned by the Federal Office of Public Health, shows that radium was used in almost 700 buildings. In addition, there are approximately 300 other buildings where the use of radium is uncertain. The findings double previous estimates of potential radium contamination in Switzerland. 

A third of the identified sites are in the canton of Neuchâtel, and another third in the canton of Bern –mainly in the Biel watchmaking region. The remaining third is divided between the canton of Solothurn and the rest of the Jura Arc, which houses the bulk of the country’s watchmaking hubs. 

Big undertaking

The Federal Office of Public Health examined the premises with the help of the municipalities concerned. Systematic checks have already taken place on 400 of the 700 contaminated buildings. Eighty sites required remediation work that has been completed or is underway in over 50 locations. 

According to the health office, buildings must be remediated if the people spending time there are exposed to more than one millisievert (mSv) of radium per year. 

For buildings in which the use of radium is uncertain, investigations are under way. Authorities will assess whether systematic monitoring is required. 

The University of Bern’s research was conducted within the framework of the Radium 2015-2019 action plan launched by the health office. The remediation work already carried out by the health office, the Swiss Accident Insurance Fund (SUVA), and the army consisted in most cases of removing floors or other materials, and soil from gardens. An evaluation report will be submitted to the Federal Council by the end of 2018. 

The budget for the clean-up – approved by the Federal Council in 2015 – is CHF5 million ($5.1 million at the time).

More

More

Radioactive ex-watchmaking sites need rehab

This content was published on On Monday, the Federal Office of Public HealthExternal link announced that of the 130 sites it had inspected so far, 27 had unsafe levels of radium, and 12 of these had been cleaned up already. The radioactive powder came from the radium-based paint used to give watch faces a neon glow up until the 1960s.…

Read more: Radioactive ex-watchmaking sites need rehab


Popular Stories

Most Discussed

News

6.4 million loan for the Château de Gruyères voted in Fribourg

More

Gruyères castle gets public funds for renovation

This content was published on The Fribourg parliament approved a sum of CHF6.4 million to renovate the ramparts, the walkway and the towers, as well as to replace the exterior lighting.

Read more: Gruyères castle gets public funds for renovation
Increasing rental housing listings, but not placating demand

More

Swiss rental housing listings increase for the first time in three years

This content was published on For the first time in three years, the number of advertisements for rental accommodation is on the rise, but this does not dampen demand, quite the contrary. In Ticino, the average duration of an advertisement published on the main portals is 30 days.

Read more: Swiss rental housing listings increase for the first time in three years
Child vaccination rates are stagnating in many countries

More

Switzerland doing relatively well when it comes to child vaccination rates

This content was published on Progress in child immunisation has stalled. For decades, the number of children vaccinated against measles, polio and other diseases has risen. But since 2010, vaccination rates have stagnated in many countries, according to a study.

Read more: Switzerland doing relatively well when it comes to child vaccination rates
Human remains found in Blatten VS

More

Human remains found in buried Swiss village

This content was published on Human remains were found and recovered on Tuesday as part of a search operation in the buried Valais mountain village of Blatten. Formal identification is underway, according to the Valais cantonal police.

Read more: Human remains found in buried Swiss village
Lakes in Central Switzerland have the best bathing water quality

More

Lakes in Central Switzerland have best water quality for bathing

This content was published on Anyone who swims in a lake in Central Switzerland need have no fear of infection from intestinal bacteria. The water samples taken at 65 bathing sites in 13 lakes all have good to excellent bathing water quality.

Read more: Lakes in Central Switzerland have best water quality for bathing
Historic ring stolen from Basel museum

More

Historic Russian ring stolen from Basel museum

This content was published on Unknown assailants have stolen a historic ring from a Basel museum. The stolen item was a gift from Russian Tsar Alexander I to his host in Basel in 1814.

Read more: Historic Russian ring stolen from Basel museum

In compliance with the JTI standards

More: SWI swissinfo.ch certified by the Journalism Trust Initiative

You can find an overview of ongoing debates with our journalists here . Please join us!

If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.

SWI swissinfo.ch - a branch of Swiss Broadcasting Corporation SRG SSR

SWI swissinfo.ch - a branch of Swiss Broadcasting Corporation SRG SSR