There are two main types of radiation: electromagnetic waves and accelerated subatomic particles. Radiation can also be categorized as ionizing or non-ionizing, with ionizing radiation including sources like cosmic rays, radioactive minerals, medical technology like X-rays, and nuclear activities. Exposure to high levels of ionizing radiation can cause acute effects like nausea and vomiting, while low levels are associated with increased risks of cancer and genetic mutations.

1. Radiation

2. Environmental Health
Chapter 21

6. Generally,
2 kinds of radiation

8. 1.
Electromagnetic Waves

9. 2.
Accelerated
Subatomic Particles

11. Generally,
2 other kinds of radiation

12. A.
Non-ionizing

13. B.
Ionizing

15. Sources of
Ionizing Radiation

16. Natural
Cosmic Rays
Radioactive Minerals
Other Naturally Occurring Radionuclides

20. Human-Generated
Medical Technology (X-rays, CAT scans)
Nuclear Weapons Fallout
Nuclear Power Plants

21. Health Effects:
High-Level Exposure

22. Nausea
Vomiting
Hair Loss
Diarrhea
Seizures
Death

23. Health Effects:
Low-Level Exposure

24. Mutations
Congenital Abnormalities
Cancer

25. Non-Ionizing Radiation

26. Ultraviolet Light
Visible Light
Infrared Light
Microwaves
Extremely Low Frequency EMFs
(Ultrasound)