The allusion that seems to be made is that natural stone is installed in your home dangerous to your health is raised repeatedly on the site and in a recent local Houston TV news program.
And 'interesting to note that the two main causes of this non-profit organization are manufacturers of artificial stone. One of them wears manufacturers has a marketing manager in the board of directors of this organization special.
Of what can be perceived inSurface as perhaps another campaign "going green" seems to be another angle on the ongoing struggle of artificial stone manufacturers against natural stone.
Note that the granite as well as the ingredients found in most natural construction materials, the vapors pass through them, which perhaps may contain trace amounts of radon. There are only small amounts of uranium in trace minerals such as biotite are found in some natural stones. If degraded when exposed to a large group of biotite, theThe result would be a first reading of radon. However, once exposed to a piece of granite or natural stone, removed a large amount of uranium-rich deposits of minerals in the soil from the source and exposed to air, the radon vapor transmission would weaken drastically and then dissipate. In short, think of natural stone as a very dense foam, water, air, and yes radon to pass through the leaves of stone. After the stone was removed from the source of radon (the earth), the stone has no radon filterthrough them.
We endorse Radon testing but to allude that natural stone is essential to wear ridiculous.
Here are some facts about Radon:
WHERE IS RADON ago?
"Radon comes from the natural decay of radium and uranium radiation in the ground underneath the house. The amount of radon in the soil depends on complex soil chemistry, ranging from one house to another. Radon in soil varied from a few hundred to several thousands of pCi / L.Amount of radon that escapes from the soil into the house depends on the weather, soil porosity, soil moisture, and vacuum the house. "
HOW IT WORKS radon in the home?
"Houses act like large chimneys. The heats the air in your home, attic vents is eliminated and gets up to the window upstairs. This shows a small suction cups formed on the lower floor of the house, radon extracted from soil and at home. (Just as natural stone filters radonEmissions, as already mentioned.) You can test on a cold day by opening a window on the top floor of an inch. They are equipped with hot air out of the house rushed out, that opening remark, but when you open a basement window an inch, you feel the cold outside air intake ride This is what moves the radon from the ground and in the home. You might think that sealing cracks and openings in the basement will stop the radon from the house. But scientific studies show that only servesenough tears or holes in the sealing of unsealed behind a hole "in diameter 1 / 2, admitted all the radon is unlikely that caulking is to enter the cracks and open joints to permanently seal the openings radon needs at home. Radon levels, however, will likely remain unchanged.
Fortunately, there are other very effective means of radon in your home. Across the country, millions of people who are already tested for radon. Some houses tested as high as2000-3000 pCi / L, but not a house that could not mitigate to an acceptable level was. The difference is in terms of natural stone to remove the plate from the source and exposed to radon in the atmosphere the same way ventilation of a house, vents emissions of radon in the ground softens.
The levels of radiation from granite products, which technically are measurable, in fact, small fractional values of established thresholds for the environmentSecurity. The truth of the matter is that granite is safe. It is used for thousands of years and the relationship between granite and radon has been studied for years. How safe is granite? It was developed mathematical models that indicate that you live in an all-granite home or building, including sleeping on granite, for an entire year and still be very safe level of exposure.
Calculations show that if a work plan average, traps an average ofUranium concentration of four ppm (parts per million), the concentration of radon that is given into the air from the working family would be 270 000 times lower than the level of radon in outdoor air. The maximum contact level that you would get more than a year, if you sit on a work plan for all the time would have been about one fourth of radiation annually from all sources. If you were only inches away from the granite (such as washing dishes), the dose would betoo low to measure.
For Donald Langmuir, PhD, Professor Emeritus of Geochemistry, Colorado School of Mines, and president, quoted Hydrochem Systems Corp.
"To show how laughable are the concerns of radon in natural stone, granite emits a typical example reported in 7.4 x 10 -7 pCi / L of air. This is equivalent to 2.7 x 10 -8 atom decays per second (DPS ). This represents 0.85 decays per year. In other words, less than an atom of radon generated by theWork plans in a year. This is not enthusiastic about the will. I would suggest that a good way to reduce our exposure to radon in outdoor air would be to build an airtight house made of granite! There are some properties of rocks that can increase their efficiency Radonemanation, or in other words increase the release of radon from a given weight of rock. These are rock properties that maximize the exposure of internal or external rock surfaces to water or air,so that any leakage of radon gas. The author of 'Granite and Radon' argues that include features such as, rock porosity, cracks and mylonitization, the increase of radon free. This is probably true, it would be granite with such properties are too fragile to make a work plan, and also open to take a Pole, and so would not be on the market as a bank - unless the rock pores were first filled with a chemical sealant. Held that it would also be a potential radonProblems of release. "
In a recent study conducted by LL Chyi, a PhD was carried out and a professor of geology and environmental geochemistry at the University of Akron, Akron, Ohio. Dr. Chyi studied 13 of the most popular granites in the U.S. by an industry-wide survey to determine. Due to their popularity these 13 granites, it is believed that up to 85% of the granite in recent years. The granite types are as follows:
1 New VenetianGold, Brazil, medium-grained, yellow-beige gneiss with many dark red garnets
Uba Tuba 2, Brazil; An average of coarse-grained, olive-green granite
3 Santa Cecilia, Brazil; A coarse-grained, yellow-gray gneiss with up to pie-sized, red garnets
4 Tropic Brown, Saudi Arabia, medium-grained, brown granite
5 Absolute Black, India, black basalt
6 Tan Brown, India, a black-brown igneous rock with big, shapeless, brown-red feldspar crystals
7 Ornamental YellowBrazil, coarse, brown-yellow granulite with some brown-red garnet
8 Crema Bordeaux, Brazil; Juparana Crema Bordeaux (Brunello). A coarse to very coarse-grained, pink to red granite with areas of quartz, feldspar and a lot of mineral
9 Baltic Brown, Finland, brown-black granite
10 Giallo Veneziano, Brazil, medium-coarse-grained, yellow-ocher, golden brown, also light pink, gneiss
11 Mahogany Dakota, United States, medium-and coarse-grained, brown-redGranite
12 China Black, China, fine-grained plutonic rock
13 Yellow Star, China, a medium-grained yellow to pink granite
Want the test method was developed to add the amount of radon which each granite type of the interior of a 2,000 square foot, normally ventilated home with 8 ft measure ceilings. The results show that Crema Bordeaux (the most active in terms of radon emissions) would contribute a concentration component of less than 0.28 pCi / L, or less than 7%EPA recommends actionable level of 4.0 pCi / L. This amount of radon is well below a level that may cause health problems. Tropic Brown and Baltic Brown, second and third Radonemanation Dr. Chyi according to the test was only 1% of this level of action. The other granites tested added almost immeasurable amounts of radon in the home. Of radon atoms in the pores and fractures are minor concerns in the case of granite
Dr. Chyi test results show that theGranites that are currently in the United States "will be on the market, contributing insignificant to radon in homes." On the basis of test results and EPA standards, we can conclude that granite surfaces are most often used to support non-health threat to homeowners. If proper resealing once a year or on different frequencies used by the industry is determined, the radon emanation can be further reduced. "
Daniel J. Steck, Ph.D. also ran a test on the inner and radonGranite, and that's what he had to say.
. "The average radionuclide contents of samples to build your material are similar to other average granite samples and other common earth-derived materials such as brick and soil Thus, the amount of gamma radiation emitted from similar masses of these building materials are about the same;
There is little variation from sample sample of household radon concentrations of radionuclides, the flow of radon is a bit 'for the largestBench seats for smaller samples. This suggests that the effective diffusion length is only in the order of the thickness of the counter-top samples, ie several centimeters. Thus, material thicker than 5 cm (2 ") do not emit more likely that the counter-top samples.
While we believe that health security is a major concern especially in our homes, for an industry to try to gain financially by "scare tactics" or under the auspices of '"eco friendly" is reprehensible.We urge consumers not to be taken into alarming of these tactics.
