Accidental Radiation-induced cancer

chernobyl radiation map 1996

nuclear accidents can have dramatic consequences surroundings, global impact on cancer less of natural , medical exposures.

the severe nuclear accident chernobyl disaster. in addition conventional fatalities , acute radiation syndrome fatalities, 9 children died of thyroid cancer, , estimated there may 4,000 excess cancer deaths among approximately 600,000 highly exposed people. of 100 million curies (4 exabecquerels) of radioactive material, short lived radioactive isotopes such chernobyl released dangerous. due short half-lives of 5 , 8 days have decayed, leaving more long-lived cs (with half-life of 30.07 years) , sr (with half-life of 28.78 years) main dangers.

in march 2011, earthquake , tsunami caused damage led explosions , partial meltdowns @ fukushima nuclear power plant in japan. significant release of radioactive material took place following hydrogen explosions @ 3 reactors, technicians tried pump in seawater keep uranium fuel rods cool, , bled radioactive gas reactors in order make room seawater. concerns large-scale release of radioactivity resulted in 20 km exclusion zone being set around power plant , people within 20–30 km zone being advised stay indoors. on march 24, 2011, japanese officials announced radioactive iodine-131 exceeding safety limits infants had been detected @ 18 water-purification plants in tokyo , 5 other prefectures .

other serious radiation accidents include kyshtym disaster (estimated 49 55 cancer deaths), , windscale fire (an estimated 33 cancer deaths).

the transit 5bn-3 snap 9a accident. on april 21, 1964, satellite containing plutonium burnt in atmosphere. dr. john gofman claimed increased rate of lung cancer worldwide. said although impossible estimate number of lung cancers induced accident, there no question dispersal of plutonium238 add number of lung cancer diagnosed on many subsequent decades.