It can refer to the fatality rate â the number of deaths per number of cases â or it can mean the number of deaths in total caused by a disease. What's more, diseases can take a different toll in different parts of the world. In low-and middle-income countries, only limited medical care may be available, if that. This will raise the fatality rate for many infectious diseases, such as tuberculosis, malaria and infectious diarrhea.
Although you may still occasionally hear remarks such as âradon is a hoax!â or âsome radon is good for you,â there is no scientific doubt that exposure to high radon levels can cause lung cancer.lthough you may still occasionally hear remarks such as âradon is a hoax!â or âsome radon is good for you,â there is no scientific doubt that exposure to high radon levels can cause lung cancer.
They are present in any environment where radon is found and, like radon, cannot be detected by human senses. The earth is the source of all radon gas in our atmosphere. Uranium is a natural part of the earth's crust. Therefore, radium and radon are also naturally present (as noted above).Since uranium and radium concentrations vary throughout the earth's crust, radon concentrations will also vary.s a noble gas, radon is colorless, odorless and chemically inert and cannot be detected by human senses. Also, since radon is not chemically reactive with most materials, it will move freely as a gas.