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The derelict radiotherapy clinic in
Goiania from which the cesium device was taken. |
In September 1987, a canister of cesium-137 was taken by scavengers from
an abandoned medical clinic. The canister was subsequently broken into
parts and pried open. The blue radioactive powder was distributed throughout
the community of Goiania, Brazil. Wind and rainwater runoff also helped
to spread the radioactive contamination.
The incident resulted in four deaths, one amputation, 28 people with radiation
burns, and monitoring of more than 112,000 people (most of whom experienced
no contamination). The physical decontamination effort covered about one
square kilometer (roughly 40 city blocks), demolished seven homes and
some other buildings, and produced about 3,500 cubic meters of radioactive
waste. Economically, the clean-up costs themselves amounted to $20 million,
and up to hundreds of millions of dollars were estimated to have been
lost with collapses in tourism and business. Many people left the area
due to fears of remaining contamination, and although not contaminated,
prices of manufactured products fell by 40 percent and stayed at that
level for 30 to 40 days.
This incident provides some sense of the possible physical and economic
effects of a radiological attack.