Why is radioactivity dangerous?

Why is radioactivity dangerousRadioactivity is dangerous because it can expose people to a harmful dose of radiation even without being aware of it. A number of small doses received over a very long time could lead to leukaemia or cancer in later life.

Radiation can lead to the retention of a potentially harmful amount of radium in one’s bones. Radioactivity resulting from nuclear bomb tests can cause ingenuous quantities of radiostronium and radiocaesium to get into food.

A radium compound was once used in the manufacture of luminous paint for the numbers on clocks, watches and instrument dials. The girls who painted these had a habit of putting the brush in their mouths to get a fine pointed tip. In those days the danger was not realized, and, over a long period, many workers absorbed enough radium to cause death in later years.

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