While chemical absorption much depend on what we ate proir or right after eating the source. All it can do is to collect the casualties. Human body's defense capabilities however is limited to biological, biochemical, and cleaning, that is our body lacks nuclear defense capabilty, to identify and interact with nuclear reactions. Exposure we read on a gieger counter understandably exceeds absorption, not so if the source gets inside our body, specially if it stays in.Īll I said about redistribution of the source by nature and eco system can be shelved as background radiation. Hi Andy, We have considerable control over sheilding from the source, providing we can identify it's location and the type, yet tend to regard the relative inevitability of exposure to background radiation as Natural, even harmless while exposure to source is inseparable from background radiation. and you should be relatively safe (well maybe not the last one). Having said that, as has been stated before, don't lick the dial, and don't stick your fingers in the electricity socket, if you do smoke, don't exhale etc. Statistically it might, but in reality, we are more likely to get run over by a bus, or fall down the stairs and break our neck, or electrocute ourselves with the toaster, or smoke or drink or over-eat our way to an untimely end than we are to kill ourselves with one or two watch dials. or whatever is not going to do us in any day soon. So absorbing a little radon from the granite worktop in the kitchen, or the remaining nuclear pollution from the atomic tests of the 60s and 70s, or from Chernobyl, or the Windscale fire (google it). etc.īy and large, all of these things have the potential to kill us, and, arguably, slowly do so over the course of our lives, however the degree to which they damage us, is largely dependent on the level of exposure. If you don,t stop me here and don,t go to the next topic, within an hour I will have got to the dangerous parts of this story.Īll of the above is true, however we have a built in repair mechanism that mainly takes care of all of this damage, other wise we would rapidly be destroyed by all of the natural radiation around us, including ultra violet radiation, natural and man made sources of nuclear radiation, xrays from medical, industrial and even, natural sources. Radiations emitted by nuclear reaction are of several orders of magnitude higher enrgy compared to atomic reactions and can easily break weaker chemical bond cauing undesired new bond, such undesired bond cause a change in programming of the molecule or cells, among numerous defence mechanisms our body may deploy, is to store all such disorederly cell in one place and wrap tissues aroumd them to keep them contained in company of otherwise rejected cells ( cancerous tumors). If the nuclei get in subsytems that dont throw it out, blood circulation system for one, it can spend years within our body and generously distribute radiation through out us.
Once a radioactive source gets inside our body, it will continue with the job on chemical interaction, it will come it contact with other chemicals in us including the acid our stomach spreads on it and the products of stomach chemical pot, there a new story develpoes, if it gets absorbed and gets in our blood system among others, it may spend long times circulating through the system or go to a cell to get burnt, our cell provide oxygen to burn the food and get energy from it and some heat, this is how the heat in our body is generated, We are a thermodynamic body. This means radioactive nuclei get in our drinking water as easy as non-radioactive ones and get in vegetation, dairy, meat ,wool and cotton, including our body.
A chemical bond between two atoms A and B, gets formed when oribital electrons of atom A, take a tour and orbit around nuclei B as well, a new molecule AB with it's own specific chemical properties is formed, which can then enter consequent chemical interaction, so radioactive nuclei gets in cycles the same as non-radioactive ones.
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