Radon and its Significance in Radiation Exposure
29 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which type of radiation is typically emitted by cosmic radiation?

  • Beta radiation
  • X-ray radiation
  • Alpha radiation
  • Gamma radiation (correct)

What is the largest source of human-made radiation exposure?

  • Tobacco
  • Radioactive Fallout
  • Medical X-rays (correct)
  • Smoke detectors

What is background radiation according to the US Environmental Protection Agency (EPA)?

  • Radiation from cosmic sources
  • Radiation present in the natural environment (correct)
  • Radiation from tobacco
  • Radiation from radioactive waste

Which type of radiation has the highest penetrating power?

<p>Gamma radiation (D)</p> Signup and view all the answers

What is one of the sources of natural radiation exposure mentioned in the text?

<p>238U and 232Th (C)</p> Signup and view all the answers

Which human-made source contributes significantly to radiation exposure according to the text?

<p>Medical X-rays (B)</p> Signup and view all the answers

What is the main cause of animals accumulating radionuclides?

<p>Ingesting plants containing radioactive material (B)</p> Signup and view all the answers

Which radionuclide concentrates in bone?

<p>$^{90}Sr$ (C)</p> Signup and view all the answers

Where is polonium-210 deposited in the body when tobacco smoke is inhaled?

<p>Liver, kidney, spleen (D)</p> Signup and view all the answers

What is the main source of lead-210 in tobacco smoke?

<p>Atmospheric deposition (A)</p> Signup and view all the answers

Which activity results in over 90% of the total population exposure to man-made ionising radiation?

<p>Diagnostic radiology (X-rays) (C)</p> Signup and view all the answers

What is the main effect of the uncontrolled radioactive break-up of plutonium and uranium?

<p>Accumulation of radionuclides in animals (A)</p> Signup and view all the answers

Which gas is the largest contributor to background radiation dose?

<p>Radon (C)</p> Signup and view all the answers

What is the annual dose from radon in the UK approximately?

<p>~ 1.3 mSv (C)</p> Signup and view all the answers

How does radon gas enter buildings according to the text?

<p>Through cracks in the floor and walls (C)</p> Signup and view all the answers

Why does restricted ventilation increase radon concentrations within a building?

<p>Radon is heavier than air and sinks into cellars or basements (A)</p> Signup and view all the answers

Apart from cosmic and terrestrial sources, what other radioactive isotopes do all people have within their bodies?

<p>Potassium-40 (40K), carbon-14 (14C), lead-210 (210Pb) (C)</p> Signup and view all the answers

How can foods gain radioactivity according to the text?

<p>Roots of plants take in radionuclides from the soil (B)</p> Signup and view all the answers

Which of the following factors does NOT contribute to the harmful effects of radiation?

<p>Time of exposure (C)</p> Signup and view all the answers

In terms of radiation exposure, why is irradiation of pregnant patients strictly controlled?

<p>To reduce chances of birth defects (A)</p> Signup and view all the answers

Why are individual exposures in certain treatments sometimes many thousands of times larger than those in diagnostic radiography?

<p>To deliver a higher dose for therapeutic purposes (C)</p> Signup and view all the answers

Which organ is NOT considered one of the most important organs affected by radiation exposure?

<p>Lungs (A)</p> Signup and view all the answers

What factors influence the harmful effects of radiation on an exposed person?

<p>Age, gender, and underlying health condition (A)</p> Signup and view all the answers

What is the primary origin of cosmic rays?

<p>The sun (B)</p> Signup and view all the answers

Where do cosmic ray particles interact to produce showers of lower energy particles?

<p>Upper atmosphere of the earth (A)</p> Signup and view all the answers

Which radioactive gas comes from the decay of natural uranium and thorium in rocks, soils, and building materials?

<p>Radon (D)</p> Signup and view all the answers

Where are low levels of uranium and thorium found in nature?

<p>Soil, water, and vegetation (C)</p> Signup and view all the answers

Why do people living in granite areas or on mineralized sands receive more terrestrial radiation?

<p>Due to higher concentrations of uranium and thorium in the soil (D)</p> Signup and view all the answers

Which isotopes are major concerns for terrestrial radiation?

<p>Uranium and decay products like thorium, radium, and radon (B)</p> Signup and view all the answers

More Like This

Radon Mitigation Measures
23 questions

Radon Mitigation Measures

WorthwhilePyrite5473 avatar
WorthwhilePyrite5473
Nuclear Radiation Safety and Impact Quiz
16 questions
Use Quizgecko on...
Browser
Browser