What are the highest man-made sources of radiation and the highest sources of radiological risk?
radioactive soil contamination
What are the sources of natural radiation?
radioactive waste, radioactivity released from nuclear explosion
cosmic radiation and radiation from naturally occurring radioactive substances (on the surface of earth, in the terrestrial atmosphere, in foodstuffs, water, a human organism)
nuclear reactors, radioactive sources for medical treatment
What is the main negative consequence of a radiological emergency?
exposure of people to radiation
evacuation of people
contamination of the environment
contamination of food
What is the potential danger from an accident at a nuclear reactor?
high human exposure to radiation
What is the main characteristic of a radiological emergency?
release of significant levels of radioactivity and high exposure of workers or the general public to radiation
contamination of food by radioactive materials
contamination of forests by radioactive materials
contamination of soil by radioactive materials