Chart of Radioactive Plume

Chart of Radioactive Plume

This radioactive plume measured via aerial surveillance on March 31, 1979 shows just how narrow the path of radiation travel can be. Releases passing between the stationary ground-based monitors went undetected in 1979. The narrow plume path also explains why health effects can be found in one neighborhood and not another.

 

As charted by the Lawrence Livermore Laboratory