GG231 Lecture Notes - Lecture 3: Space Shuttle Challenger, American Red Cross, Roentgen Equivalent Man
Document Summary
There are many example of structure failing or collapsing all together. Johnstown flood 1889: one of the first examples of relief provided to the survivors through organized groups, american red cross. There are several car, plan and train crashes each year. Space shuttle challenger: exploded shortly after take-off in 1986: 7 crew member"s dead, it did 9 successful mission with the 10 being its last. Bhopal gas disasters: in 1984 a toxic cloud from the union carbide plant in india covered the city leading to the death of over 20,000 people. Exxon valdez: 1989 saw one of the world worst environmental disasters. A tanker through human error crashed and released its oil cargo into the rich in biodiversity waters of prince sound. Pathway of human exposure, direct or indirect. Length of time to decay (half life) Level of exposure by the public: around 1 millirem above the usual background dose.
