2. Units of MeasurementThe unit used to measure radiation dosage is the rem. whichstand for roentgen equivalent man. It represents the amount ofradiation needed to produce a particular amount of damage toliving tissue.
3. Effects of Radiation Exposure onHuman HealthExposure of Just 25 rems causes some detectable changes inblood, doses to near 100 rem usually have no immediateharmful effects. Doses above 100 rems cause the first signs ofradiation sickness including.1 nausea2vomiying3headache4some loss of white blood cellDoses of 300 rems or more cause temporary hair loss, butmore significant internal harm.dose of 800 rems or more are always fatal.
4. Hiroshima and NagasakiMany people at Hiroshima and Nagasaki died not directly fromthe actual explosion,but from the radiation released as a resultof the explosion. the doctors who is in Hiroshima and NagasakiDidnt know the causes and how to cure radioactive patient .
5. Chernobylthe Chernobyl nuclear accident is summarized as amismanaged electrical engineering experiment which resultedin the reactor exploding. the explosion was chemical, driven bygases and steam generated by the core runaway,not bynuclear reactions.
6. The Mile Islandnuclear worker head big noises coming from nuclear plants.some 220 gallons of water per minute began flowing out of thereactor vessel . Within five minutes after the main feed watersystem failed,the rector, deprived of all normal and emergencysources of cooling water, and no longer able to use itsenormous energy to generate electricity.the loss of coolant at the reactor continued for some 16 hours.Abort a third of the core melted down.
7. Medical Treatmentthere is currently no effective medical treatment available forpotentially fatal radiation doses.Medical science has no way oftelling the difference between people who have received fataldoses and will die despite all effects and can be saved includesblood transfusion and bone marrow transplants.
8. SummaryRadiation effects on humans of great account. And the medicalcuring dont find. so we should prevent radiation accidents.