The chinese trade association for its granite exports the stone union has denied it is doing so.
Chinese granite radon.
Radon originating from the soil beneath homes is a more common problem and a far larger public health risk than radon from granite building materials.
Radon can be a carcinogen and is therefore a health concern especially in poorly ventilated indoor spaces.
As the radiation comes from the natural mineral content of the stone i wonder if certain granites or colours of granite would be more suspect than others.
Even if you compare the chemical composition of chinese granite with other granites then you will find the radium and potassium residues in the form of radioactive.
The us epa recommends taking corrective measures for radon levels at or above 4 pci l the us epa encourages you to consider reducing your radon levels for readings between 2 and 4.
All types of granite contain various amounts of uranium an element that produces radon gas.
To reduce the risk of lung cancer from exposure to radon.
At issue is whether some granite countertops emit dangerous levels of radiation especially the gas radon which is the second leading cause of lung cancer after smoking.
Uranium in 2011 professor w j.
Ilope of rice university in texas claimed that in addition to radon gas chinese granite also contained very high and dangerous levels of uranium.
That is no windows or doors opening for seven days.
So i m still looking at chinese granite and the radon kits require closed house for seven days.
I don t see how i could do that.
The epa says that approximately one of every 15 homes throughout the country whether new or old has elevated radon levels.
Radon is the second leading cause of lung cancer and is estimated to cause tens of thousands of lung cancer deaths in the u s.
The chinese granite as most popular natural stone material that play important role at the market.
Radon that originates in the soil is the main cause of radon problems the epa says.
Radon gas can damage cells in your lungs which can lead to cancer radon is responsible for about 21 000 lung cancer deaths each year in the united states though it usually takes 5 to 25 years to.
In fact we can see it at a lot of famous stone projects around the world some regular customers know this type of material very well but for some new customers we have to introduce with more detailed such as chinese granite radiation and chinese granite price chinese granite use etc.
Granite emits certain level of radon gas that is generally not harmful for humans but among all kinds of granite stone chinese granite are found to emit high level of radiation.
