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Yes, human feces should not be inhaled into the lungs. It could cause a nasty infection resulting in destruction of lung tissue.
To trap dirt,and other particles that can cause harm to the lungs.
Nuclei that emit alpha particles, such as americium-241, are safe to use in smoke detectors because alpha particles can only travel a short distance through air and are easily stopped by a thin sheet of paper or clothing. The radiation emitted by the nuclei is low energy and poses no harm to humans. Additionally, the amount of americium-241 used in smoke detectors is very small, further reducing the risk.
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Ionization creates charged particles that can harm living tissues.
Although there are many forms of "radiation" when assessing radiation hazards we usually think in terms of just three forms of radiation: alpha, beta, and gamma. Of these, alpha radiation is only a hazard if a source is inhaled or ingested - the other two are a hazard even without inhalation or ingestion. In general, external alpha radiation is not harmful since alpha particles are effectively shielded by a few centimeters of air, a piece of paper, or the thin layer of dead skin cells. On the other hand, if you inhale or ingest an alpha emitter, it can cause significant damage if the radiation is intense enough. Beta particles (electrons) are more penetrating, but still can be absorbed by a few millimeters of aluminum. Whatever harm beta radiation can cause, it doesn't have to be inhaled or ingested to do it. Gamma radiation is the most penetrating - that's the kind of radiation we usually think of using lead to shield us from. Again, gamma radiation is a hazard whether or not you inhale or ingest it.
Yes, it is. There are many toxic substances in the "white-out" that can cause harm to your body if inhaled.
Microwaves are matter. Everything you can see, touch, smell, hear, or taste w/o the help of instuments are matter. Mcrowaves do emit a small of radioactive particles though, namely alpha. Alpha particles can't even pass through your clothes though and they won't harm you.
As with any dust-like material, flour can harm your lungs if inhaled
Yes, human feces should not be inhaled into the lungs. It could cause a nasty infection resulting in destruction of lung tissue.
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nasal hair is there to prevent tiny particles from entering your respiratory system. These particles could cause harm to us. The removal of the hair could result in the entry of these particles.
By alpha waves I asume you mean alpha radiation. An alpha particle is two protons + two neutrons so it is heavy, and will do damage to body tissues, however it has to be ingested (taken inside the body) to do serious harm as it can then attack sensitive tissues. If enough is ingested it can cause illness and death very quickly(cf the Russian killed in London in 2007 by Polonium poisoning), but a smaller dose could cause cancer over a longer time scale.
To trap dirt,and other particles that can cause harm to the lungs.
The greatest harm that friable asbestos can inflict is , if it becomes airborne and is inhaled, it may produce mesothelioma or lung cancer. Either of these diseases can be fatal.
Some amount of chloride ions is essential to the human body. So little amount of chlorine will not cause harm. If a considerable amount of chlorine is inhaled, it may cause damages and infections in the respiratory system. Larger doses of chlorine may be fatal.
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