Measures of thyroid function among Belarusian children and adolescents exposed to iodine-131
from the accident at the Chernobyl nuclear plant.
During the Green Run, Air Force planes measured the deposits of iodine-131
on ground vegetation within a 200- by 40-mile plume that stretched from The Dalles to Spokane.
The thyroid's powerful ability to concentrate iodine is what causes trouble when you come into contact with radioactive iodine-131
The IAEA believes the current trace levels of iodine-131
that have been measured do not pose a public health risk and are not caused by the Fukushima Daiichi nuclear accident in Japan," dpa quoted the Vienna-based agency as saying.
According to NewScientist, in case of Chernobyl disaster about ten million children in the region around the plant were exposed to high levels of iodine-131
, and many received more than 100 times the maximum dose recorded in Japan.
The projection had been based on an assumption that 1 becquerel of iodine-131
is discharged from the nuclear plant every 72 hours.
And campaigners have demanded a probe by health chiefs on the eve of the 25th anniversary of the catastrophe Particles of highly radioactive iodine-131
- which can cause cancer as the body stores it in the thyroid gland in the neck - were scattered across Scotland by rain showers after the Soviet nuclear plant disaster.
According to South Korean News Agency Yonhap, Korea Institute of Nuclear Safety (KINS) reported Minuscule traces of iodine-131
were found in the seven areas including Seoul with traces of cesium-134 and cesium-137 was detected in four areas.
The Food Safety Authority of Ireland said tests carried out by the national radiological institute had discovered trace levels of iodine-131
, a radioactive isotope, in three individual samples.
Exposure to radionuclides, such as iodine-131
and cesium-137, increases the incidence of cancer.
The Health Protection Agency said that trace levels of the radioactive chemical iodine-131
had been detected by measurements taken at a monitoring station in Oxfordshire.
The Atomic Energy Council stated that airborne radioactive iodine-131
was detected in both northern and southern parts of the island but it was well below the safe limit.
China and South Korea, which are nearer to Japan, also reported on Tuesday that small amounts of radioactive iodine-131
had been detected in their territories, while similarly warning they were not harmful to humans.
In a test by plant operator Tokyo Electric Power Company (TEPCO) on Friday morning, radioactive iodine-131
in excess of 1,250.
Non-radioactive ordinary potassium iodide (iodine-127) can be used to help protect against thyroid cancer in the case of radioactive exposure by saturating the thyroid gland's ability to take up further iodine and thus reducing the risk of accidental contamination from iodine-131
generated in nuclear accidents.