1. Mr. Haase Princeton University Radiation Open Source Radiation Basics

3. Henri Becquerel – discovered uranium in 1896 Marie and Pierre Curie – Discovered polonium and radium

4. Isotopes – nuclei that have the same number of protons but different number of neutrons *For example* Isotopes of Hydrogen: Hydrogen DeuteriuimTritium

6. Naturally occurring isotopes like uranium produce RADON (a product of nuclear decay) -Radon makes up about 55% of all background radiation (found in rocks and soil)

7. Mostly blocked by Earth’s atmosphere -about 8% of background radiation

8. Exposure from food we eat, water we drink, and air we breathe. Isotopes include: -tritium (H-3) -carbon-14 (C-14) -potassium-40 (K-40) -about 11% of background radiation

9. Radiation from Cell Phone Usage Studies currently taking place. NTP and FDA

12. Health Risks Cancer Infertility Skin Irritation Radiation can cause mutations or changes in DNA The mutations can be teratogenic or genetic. Teratogenic mutations are caused by exposure of the fetus in the uterus and affect only the individual who was exposed. Genetic mutations are passed on to offspring.