biological effects of radiation
TRANSCRIPT
SKIN
EARLY EFFECTS(Lower doses or localized)
GONADS
BLOOD COUNT REDUCTION
CELLULAR CHROMOSOME DAMAGE
Some riskSome risk
ACUTE RADIATION SYNDROME
LATE EFFECTS
After an acute exposure or an extended chronic exposure
Take months to years to become evident
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Some risk at any dose
Some
risk
Cancer Including leukemia
Mental retardati
on cataracts
CANCER RISK ESTIMATES
ONE MILLION PEOPLE EXPOSED TO 1 RAD
50 to 150 deaths from radiation induced cancer occurring within 25 years
100,000 PEOPLE EXPOSED TO 100mrad/YEAR
19,000 would die from cancer without exposure
Increased cancer deaths estimated at about 550
Hiroshima & Nagasaki• 300,000 total population
• 140,000 killed
• 100,000 survivors with
significant radiation doses
• Increased leukemia occurrence
• Increased mental retardation (8- 15 weeks gestation)