Short answer
12. Mention two man-made sources of radioactive pollution.
14. Why are X-rays harmful ?
Answers
Answer:
the risk from x-ray comes from the radiation they produce ,which can harm living tissue
Answer:
12. X-ray, radiation therapy etc
14. X-ray are harmful because it cause some risk. (to knew more see explanation portion)
Explanation:
12. By far, the most significant source of man-made radiation exposure to the public is from medical procedures, such as diagnostic X-rays, nuclear medicine, and radiation therapy. Some of the major isotopes would be I-131, Tc-99m, Co-60, Ir-192, Cs-137, and others.
14. While X-rays are linked to a slightly increased risk of cancer, there is an extremely low risk of short-term side effects. Exposure to high radiation levels can have a range of effects, such as vomiting, bleeding, fainting, hair loss, and the loss of skin and hair.
The risk from X-rays comes from the radiation they produce, which can harm living tissues. This risk is relatively small, but it increases with cumulative exposure. That is, the more you are exposed to radiation over your lifetime, the higher your risk of harm from the radiation.
The more scans you have, the higher your lifetime exposure and therefore the higher your risk. The American College of Radiology recommends limiting lifetime diagnostic radiation exposure to 100 mSv. That is equal to 10,000 chest x-rays or up to 25 chest CTs.
X-rays are common medical imaging tests. They use a type of radiation called ionizing radiation. This type of radiation can lead to cancer but only in higher doses. Medical tests that involve X-rays generally expose us to only small amounts of radiation.
X-rays were viewed as very valuable technology for more than just swallowed pennies and digested food. They were revered in the medical community their ability to diagnose tuberculosis. The military also took advantage of the technology, insisting that all recruits be X-rayed to rule out those with tuberculosis.