WHAT IS DIRTY BOMB?

 

A dirty bomb is a dispersion device containing radioactive material -  possibly uranium , but more likely low-grades materials - possibly uranium, but more likely low-grade materials such as caesium -137  or other radioactive materials in common use. It doesn't need to contain highly refined radioactive materials, as is used in a nuclear bomb. Instead , it could use radioactive materials from hospitals, nuclear power stations or research laboratories 

This makes them much cheaper and quicker to make than nuclear weapons, For Example : They can also be carried in the back of vehicle.

CONCERNS

The immediate health impact would probably be limited,  Since most people in an affected area would be able to escape before experiencing lethal doses of radiation. However , the radioactive dust and smoke spread farther away could be dangerous to health if it is inhaled . Because people cannot see, smell, feel or taste radiation. The economic damage could be massive from having to evacuate urban areas or even abandon whole cities.