Nuclear Power

There are three separate sources of haz- ard in the process of  supplying energy by nuclear power.

The   radioactive   material   must   travel
from is place of  manufacture to the power station. Altough the power stations   them- selves are solidly built, the container used for the transport of the materials are not. There are normally only two methods of transport available, namely road or rail. Unfortunately, both of  these involve close contact withh the general public, since the routes are sure to pass near, or even throught, heavily popu- lated areas.

Next, there is the problem       of   waste. All nuclear   power stations produce wastes that in most cases wi‟l remain radioactive for thousand of years, It is impossible to make these  wastes  nonradioactive,  and  so  they must be stored in one of  the inconvenient ways that scientists have invented. For exam- ple, they may be   buried under the ground, or dropped into abandoned  mines, or sunk in the sea. However, these methods do not solve the problem, since an earthquake could easily, crack the containers open.

Finally, there is the problem of acciden- tal exposure due to a leak or an explosion at the power station. As with the other two hazards,  this is not very likely, so that is does not provide a serious  objection  to the nu- clear program. Nevertheles s, it can happen.

Sparately, these three types of  risk are not great  causes for concern. On the whole through,  the  probability of  disaster is still high.



0 komentar:

Post a Comment