Nuclear energy is a form of energy thats released by the splitting of atoms.
Since scientists have found a way to make use of the energy, it has also been used to generate electricity. Nuclear energy has been recognized as a clean energy because it doesnt release pollutants such BS CO2 to the atmosphere after its reaction that could damage our environment. Its also known that nuclear energy has reduced the amount of greenhouse gas emission, reducing emissions of CO2 for about 500 million metric tons of carbon. Despite the advantage of nuclear as a clean energy, the big concern is the waste resulted from nuclear reaction, which is a form of pollution, called radioactivity. Radioactivity is a form of radiation a (form of energy that travels through space).
Some elements in this world are naturally radioactive while some others are made to be. Radioactivity is emitted when a radioactive element become wastable and begin to decay in the attempt to regain their molecular stability. When an element decays, it emits energy and small particles. f its still radioactive, it will repeat the process, until it finally regains its molecular stability and stop decaying. The time that it takes for halfway of decaying process is called half-life, and this differs for each radioactive element.
It possibly takes up to 4.5 billion years (Uranium 238) and as short as 8 days (Iodine 131). This process constantly remains, not thermal factors such as pressure or temperature. This process is expressed ill units called Becquerels. One Becquerel is equal to one disintegration of nuclei per second. There are commonly three types of radiation namely:
Alpha particles, can be blocked by a piece of paper and human skin.
Beta particles can penetrate through skin, which can be blocked by some pieces of glass and metal
Gamma rays can penetrate easily to human skin and damage cells on its way through, reaching far, and can only be blocked by a very thick, strong, massive piece of concrete.
Sources and Methods
We can classify major sources that lead to radioactive pollution to the following categories
nuclear power plants
nuclear weapon transportation
disposal of nuclear waste