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Global study confirms the harmful effects of radon

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Global study confirms the harmful effects of radon

A study based on data from 66 countries and presented in Environmental Health Studies (EHP) confirms that there is a clear link between exposure to radon and the risk of lung cancer. Updated data from 2012 show that around 226,000 people died that year from radon-related lung cancer. That means that about three per cent of all those who die from some form of cancer do so because of radon.

“After smoking, radon is therefore the commonest cause of lung cancer. It makes radon a serious global health problem that we must combat with knowledge and modern technology. This says Karl Nilsson, CEO. for Radonova Laboratories.

“We can now detect and deal with many of the harmful levels of radon. But most importantly we need many countries to take the issue of radon more seriously. Sweden and the US are relatively far ahead in combating radon exposure. However, other parts of the world have not begun to take the necessary steps to reduce the health risks and fatalities,” says Karl Nilsson.

The study is presented in issue no 5 (2018) of EHP and can be accessed here » ehp.niehs.nih.gov/EHP2503

Buildings and radon

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Your building and radon

It is important to measure radon regardless of where you live

There are many radon maps that classify areas according to their radon exposure. Consequently, many people do not measure radon because they think they live in a radon-free area, but that is wrong. Radon exposure affects almost all people and considerable local differences can exist within the residential areas. Studies carried out by Radonova confirm this throughout results that examine the same residential. That is why it is always important to measure radon and not to rely on radon maps. Radon measurements must be carried out with an ISO 17025 accredited laboratory

Why are there such large local differences in radon content?

It is due to variations in radon in the ground and building construction techniques, what maintenance they have had and whether rebuilding has taken place.

The levels of radon in the ground depend on factors such as the extent to which the elements uranium and radium are present in our rock types and therefore also our soil types. Radon gas comes from these elements and moves through the soil layer with the aid of air and groundwater. This means, for example, that there is a greater risk of radon in buildings constructed on sand and gravel. These highly porous soil types contain large amounts of air that can easily transport radon up into buildings.

Where does radon leak into houses?

Radon from the ground leaks into houses and apartment blocks in many different ways. Unsealed penetrations in the form of incoming electricity and water supplies enable radon to leak into the building. A concrete pad with cracks can also allow radon to leak in.

These causes mean that there are considerable local variations in the radon content in residential areas. It is therefore always important to measure the radon content in the indoor air, regardless of where you live and how you live – in a house or in an apartment building.

Matrasses have high levels of radon gas in Korea

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Korean radioactive beds matrasses

A recent news published in a Korean newspaper has drawn international attention: bed matrasses may be a source of radon gas

The radioactive Korean matrasses

In May 2018, the Korean government confirmed high levels of radon gas exhalation in some beds. Due to that, some beds could be a source of radon gas.

Are matrasses dangerous?

First investigations found out that exhalation levels were 10 times higher than the reference level. Radon gas is the second leading cause of lung cancer after smoking. Therefore, beds caught the interest of Korean authorities.

What’s next?

Consumers associations have started actions in the court against the company. In addition, the Korean government has withdrawn all matrasses and asked for expert advice.

Link to the original article can be found here.

Questions and answers about radon in water

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SSM (The Swedish Radiation Safety Authority) has recently published the National Radon Action Plan. Radon in drinking water has been highlighted as one of the risks. As the world’s leading radon laboratory, Radonova Laboratories AB gets a lot of questions about water safety. Below you can find some answers to the most common inquiries we receive on this subject.

Can we find radon in drinking water?

Radon in drinking water can occur primarily in water from wells bored down through solid rock. In Sweden, wells supply water to approximately 800,000 people. More than 6% of these wells are estimated to have such high levels of radon as to be hazardous to health. This means that radon concentrations in these waters may exceed the limit of 1000 Bq l-1, while 60% of wells are in the range of 100-1000 Bq l-1. There is also a risk of elevated radon levels in water wells bored down through soil layers. Data from the SGU (Swedish Geological Survey)shows that 1.6% of these wells are above 1000 Bq l-1and 30% in the range 100-1000 Bq l-1.

How dangerous is radon in water?

Radon in water can be harmful to health in two ways. Firstly, by radon adsorption during and after water intake and second, by radon release from water into indoor air that we breath. Radon from the air is significantly more dangerous because our lungs are more sensitive to radon compared to the stomach. As we now know, radon breaks down over time into radioactive isotopes we call ‘daughters’ with the emission of alpha particles causing lung tissue damage. Thus, high levels of radon can lead to lung cancer. Radon causes about 500 lung cancer cases per year in Sweden and 50% of the victims survive just one year.

How can you measure radon in drinking water?

It is easy to measure radon in water. After ordering a measurement pack from our website, we will send a kit containing a special bottle with clear instructions on how to take the water sample. Once you have filled the bottle with water, send it back to us. The analysis results will be obtained within one week. All Radonova’s measurement methods are accredited by SWEDAC, which means that you can rely on our results.