For those patients, doctors can then look for otherpotentialcauses of the memory decline, which may have another prognosis or be treated differentially than Alzheimer's, he said.
The effects of radiation only start to become clear at high acute absorbed doses of over 1 Sv (100 rem), and even then it is necessary to eliminate otherpotentialcauses before radiation can be unequivocally said to be the cause, advised UNSCEAR.
Benzene, one of the chemicals found in the water there, is classified as a known human carcinogen by the federal government, while the other two are listed as potentialcauses of cancer.