Within the exposure ranges of this study, this translated roughly into a six- to seven-point decline in Full Scale IQ from the least exposed group (average of 0.75 ng/g) to the most highly exposed group (average of 3.15 ng/g PCB).
It observed a rise in cancers such as leukaemia in the most highly exposed emergency and recovery workers.
Those most highly exposed to the insecticide were twice as likely to be born below the tenth percentile in size for gestational age.
Although most highly exposed individuals are at an increased risk of radiation-associated effects, the great majority of the population is not likely to experience serious health consequences as a result of radiation from the Chernobyl accident.
In a follow-up study 20 years later, the WHO concluded the accident caused an additional 4,000 cancer deaths – about 4% higher than the normal rate – among the 626,000 most highly exposed people.
Kent County Council, one of the wealthiest in Britain, was also one of the most highly exposed to Iceland, with 50.0 million pounds ($86.1 million) deposited in its banks.
The most highly exposed subjects in this study, based upon 90th percentile concentrations for those both living and working in smoking locations during the winter, would potentially inhale up to 67 CEs/y in the winter and up to 22 CEs/y in the summer.
Other human studies published in the past month have indicated that infants are the most highly exposed.
The individual-protection and human intrusion standards set a limit of 15 millirem per year to a reasonably maximally exposed individual, who would be among the most highly exposed members of the public.
Workers in the Massachusetts plant were the most highly exposed.
Some of the most highly exposed populations were indigenous groups.
