Sunday, March 20, 2011

Precautions should health problems from nuclear plant radiation limit

Sunday, March 20, 2011

The Japanese Government has evacuated people in the next to who said plant, others home stay and distributed to protect the drug potassium iodide thyroid from radioactive iodine.

The great tragedy of Chernobyl was an epidemic of thyroid cancer among people exposed to the radiation as children - more than 6,000 cases so far, with more expected for many years to come. There is no reason for it in Japan be repeated.

The epidemic in Chernobyl was unnecessary and probably would not have happened if people told me, had to stop local drink milk, made, which was by far the most important source of radiation. Grass of fallout from the reactors and secreted radioactive iodine in their milk cows ate contaminated.

The thyroid gland needs iodine and easily takes on the radioactive form that can cause cancer. Children are particularly vulnerable. Pills to potassium iodide thyroid gland with ordinary iodine in the hope, that it prevents the gland will flood in which radioactive type. Possibly unnecessary people avoid drinking milk, the drug but for most people, there is no harm in it. And if already the pills can that help get rid of, has started building in the thyroid gland, Dr. Richard said radioactive iodine j. Vetter, a Professor of Biophysics at the Mayo Clinic in Rochester, Minnesota

"It always will help if you are within a month or so of the exhibition," said Dr. cousin. "The higher is, the less it helps."

If the pills are in short supply, and he said, are rationed, they should go first, children and pregnant women. But taking the drug not you is to stay safe in the vicinity of a reactor, the radiation issues, he said. Still, people need to evacuate.

Apart from the increase of thyroid cancer is "there is no evidence of a large public health impact attributable to radiation exposure two decades after the accident" in Chernobyl, partially due to the evacuation efforts, according to a recently published report of the United Nations.

There are several ways to tell whether someone was exposed to radiation. A Geiger counter detects radioactivity outside the body, clothes, hair and skin. To be found infected people should be advised to take off and take a shower, and their clothing should when disposed of hazardous waste, said Dr. cousin.

Another device, a sodium iodide detector can check, radioactive iodine in the thyroid gland from the neck inch or so maintained; If it detects any, the person may be given pills iodide.

Appear in photographs from Japan health personnel of the public with a Geiger counter and sodium iodide detectors are screening.

If it is suspected that someone has suspended a large dose of radiation, is the first test, which doctors are likely to result in a complete blood count, Dr. Vetter said. Anomalies in the count - less white cells as, for example - can appear for a day or so, and give a rough estimate the exposure was how bad the.

"In Japan, it is very unlikely that a member of the public would get a dose of radiation, which would result in a reduction in each blood cells," said Dr. cousin. "If someone this way of the dose is probably people who work in the nuclear power plants themselves."

People with significantly reduced blood counts for radiation medication on their can be given to stimulate more blood cells bone marrow. These drugs were not available in the year 1986, when a nuclear power plant in Chernobyl, Ukraine, blew up. Other drugs can be used to help the body to get rid of certain radioactive isotopes. If the exposure was so high that the medications do not help people must - may be treated however hospitalized in isolation and antibiotics to prevent infection, and possibly blood transfusions. A bone marrow transplant can as a last resort, but Dr. Vetter said "the patient in real trouble at this point."

Cultures due to fallout, which contaminated are brackets can be addressed on the surface of the plants at first and later by their roots.

The time required for half of it fall apart, or disappear - so most of it is has gone two months a half life of only eight days - radioactive iodine. But radioactive forms of particles cesium much longer to maintain, and in the regions of Chernobyl affected, they are still the greatest threats to human health and are for decades.

Wild mushrooms, berries, and animals with caesium in fields dirty are contaminated by Chernobyl were, and, is expected to last for decades. Lakes and freshwater fish can also be contaminated, but experts say that less is a marine fish concern, because the contaminants are more spread and diluted in the Ocean as in lakes.

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