Article #1 About Radiation

Speaking and Writing -3

Dr. Roy

S1180042 Ryoko Aoki

Tow types of radiation � Non-ionizing radiation is not harmful

(Infrared radiation, radio waves, cellphone radiation and the radiation etc.)

�  Ionizing is harmful (X-rays, gamma rays and the alpha or beta etc.)

Non-ionizing �  It dose not break chemical bonds.

�  It dose not have significant effects.

�  It is not believed to cause cancer.

Ionizing radiation �  It is dangerous.

�  It does break chemical bonds.

�  It dose cause cancer.

Radiation In Fukusima � Not emitting gammar or X-irradiation.

� Most of the radioactivity is in the form of radiocesium and radioiodine.

What makes cesium dangerous? �  It is a salt goes everywhere in the body.

�  It is absorbed into soft tissues, causing sarcomas.

�  It contaminates food, water and milk.

�  It gets into the body when contaminate food are ingested.

What makes iodine dangerous? �  Iodine is absorbed in the thyroid gland,

where it can cause tumors.

�  It has a half-life of eight days and is most dangerous to children.

Conclusion �  People should knowledge how much does of

radiation are dangerous.

�  It is necessary to improve in Fukushima so that doses of radiation should not increase any further.