The 7 Most Radioactive Items in Your Home

2016-04-12 10:50:12

According to the Nuclear Regulatory Commission, about half of the radiation we encounter every year comes from background radiation, or ubiquitous radiation that reaches everyone on earth. You don’t have to go near a nuclear plant or get an X-ray to receive a dose of radiation—these emissions can come from inconspicuous household items such as nuts, granite countertops, and smoke detectors. Oh, and also your own body.1. Brazil nuts 

























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































Brazil nuts (especially the ones grown in Brazil) grow on trees with deep roots, which reach down to soil high in natural radium, a source of radiation. The roots absorb the radium, which then makes its way to the nuts. As a result, the radium levels of Brazil nuts can be 1000 times what you’d see in other foods. Luckily, the EPA regulates food radiation levels like these, so you should have a wide margin of error for safe snacking.




































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































2. Bananas





































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































You probably already knew that bananas are loaded with potassium. But bananas also happen to be one of the most radioactive foods because they contain the isotope potassium-40. Thanks to this isotope, everyone’s favorite yellow fruit emits a tiny amount of radiation. Much like the Brazil nuts, the radioactive potassium is taken up in the soil and absorbed by the fruit.  



















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































Bananas are such a common everyday source of radiation that there’s even an unofficial unit of measurement for radiation called the BED, or Banana Equivalent Dose, that’s used to illustrate foods’ radiation levels. 




































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































3. Your body





































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































We encounter all sorts of radiation in day-to-day life, which in turn makes us a little radioactive. Because it’s commonly found in a number of foods, potassium-40 is the main source of radiation in our bodies, but our bodies also pick up radiation from the air we breathe and the water that we drink. The natural amount of radioactive carbon-14 present in your body is what enables archaeologists to determine age ranges for skeletons.




































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































4. Smoke detectors 





































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































Some household smoke detectors use tiny amounts of a radioactive isotope, americium-241, to alert you when there’s smoke in the air. The material is surrounded by ceramic and foil, so it doesn’t pose any harm to you so long as you don’t go tinkering with the detector. (But even then, unless you ground it up and swallowed the powder, you’d probably be fine.)




































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































5. Granite countertops 





































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































Granite naturally contains uranium and thorium, because those elements are found in the magma that solidified to make it. But the real concern is radon. The naturally-occurring uranium decays into radon, which is a gas. And just like you shouldn’t be breathing in the powdered contents of smoke detectors, radioactive gases can be inhaled and cause health issues. But as far as kitchen islands go, granite is a fairly safe choice—it’s not too porous, which means that more of that radon is kept inside, according to the EPA




































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































6. Your grandma’s dinnerware