| Which of the following are the sources of radioactive pollution? |
| 1. Production of nuclear weapons |
| 2. Decommissioning of nuclear weapons |
| 3. Mining of radioactive ore |
| 4. Coal ash |
| 5. Medical waste |
| Select the correct answer using the codes given below. |
A) 1, 2 and 3
B) 1, 2, 3 and 4
C) 1, 2, 3 and 5
D) All of these
Correct Answer: D
Solution :
[d] There are many causes of radioactive pollution. Some are as follow Production of Nuclear Weapons Radioactive materials used in this production have high health risks and release a small amount of pollution. Decommissioning of Nuclear Weapons This causes slightly more radioactive pollution than in the production. Mining of Radioactive Ore (uranium, phosphate etc) Mining involves crushing and processing of the radioactive ores and this generates radioactive waste, which emits alpha particles. Coal Ash It is often referred to as 'dirty' coal; when this is burnt, the ash becomes more radioactive as the radioactive particles do not burn well. This level of radioactivity is less in phosphate rocks, however, due to small amounts being released into the atmosphere and its ability to be inhaled, this ash is significantly more dangerous. Medical Waste A number of radioactive isotopes are used in medicine, either for treatment or diagnostics.
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