今早收到的AACE关于核辐射和碘的statement
http://www.mitbbs.com/pc/pccon.php?id=2289&nid=162409发信人: againstwind (逆风而行), 信区: Pre_Resident_Club
标 题: 今天早上收到的AACE关于核辐射和碘的statement
发信站: BBS 未名空间站 (Sun Mar 20 13:05:24 2011, 美东)
RADIATION RISKS TO HEALTH
A Joint Statement from the American Association of Clinical Endocrinologists
, the American Thyroid Association, The Endocrine Society, and the Society
of Nuclear Medicine
March 18, 2011
The recent nuclear reactor accident in Japan due to the earthquake and
tsunami has raised fears of radiation exposure to populations in North
America from the potential plume of radioactivity crossing the Pacific Ocean
. The principal radiation source of concern is radioactive iodine including
iodine-131, a radioactive isotope that presents a special risk to health
because iodine is concentrated in the thyroid gland and exposure of the
thyroid to high levels of radioactive iodine may lead to development of
thyroid nodules and thyroid cancer years later. During the Chernobyl
nuclear plant accident in 1986, people in the surrounding region were
exposed to radioactive iodine principally from intake of food and milk from
contaminated farmlands. As demonstrated by the Chernobyl experience,
pregnant women, fetuses, infants and children are at the highest risk for
developing thyroid cancer whereas adults over age 20 are at negligible risk.
Radioiodine uptake by the thyroid can be blocked by taking potassium iodide
(KI) pills or solution, most importantly in these sensitive populations.
However, KI should not be taken in the absence of a clear risk of exposure
to a potentially dangerous level of radioactive iodine because potassium
iodide can cause allergic reactions, skin rashes, salivary gland
inflammation, hyperthyroidism or hypothyroidism in a small percentage of
people. Since radioactive iodine decays rapidly, current estimates indicate
there will not be a hazardous level of radiation reaching the United States
from this accident. When an exposure does warrant KI to be taken, it should
be taken as directed by physicians or public health authorities until the
risk for significant exposure to radioactive iodine dissipates, but probably
for no more than 1-2 weeks. With radiation accidents, the greatest risk is
to populations close to the radiation source. While some radiation may be
detected in the United States and its territories in the Pacific as a result
of this accident, current estimates indicate that radiation amounts will be
little above baseline atmospheric levels and will not be harmful to the
thyroid gland or general health.
We discourage individuals needlessly purchasing or hoarding of KI in the
United States. Moreover, since there is not a radiation emergency in the
United States or its territories, we do not support the ingestion of KI
prophylaxis at this time. Our professional societies will continue to
monitor potential risks to health from this accident and will issue amended
advisories as warranted.
--
逆风的方向，更适合飞翔。我不怕万人阻挡，只怕自己投降
※ 来源:·WWW 未名空间站 中国: mitbbs.cn 海外: mitbbs.com·[FROM: 65.24.]
