By 1990s, the carbon 14 level is only about 20% higher than the theoretical 1950 level as measured by the activity of the oxalic acid reference standard. of Honolulu - HARDTACK I--Teak -- 3.8 Mt, Alt 76 Km August 1958 - High-altitude nuclear explosions - Johnston Island, 717 miles W. Carbon-14behaves the same as ordinary carbon, both in the environment and in the human body.topic=125912.0 1958 - High-altitude nuclear explosions - Johnston Island, 717 miles W. Hence, asignificant fraction of the carbon-14 taken in by either ingestion or inhalation is absorbed into thebloodstream, where it is transferred to all organs of the body.The main chronic health effect from radiation is cancer.
The carbon 14 produced is what is known as bomb carbon or artificial radiocarbon.
According to literature, nuclear weapons testing in the 1950s and 1960s have nearly doubled the atmospheric carbon 14 content as measured in around 1965.
If the particle comes in contact with DNA within the cell, it can cause mutations. Our young children and especially the unborn are at greatest risk for mutations due to their bodies natural rapid cell division going on in their bodies.
Young children and especially unborn babies are more vulnerable to these mutations due to the rapid rate of cell division going on in their bodies.
Testing also released large amounts of cesium-137 into the environment.
Although, cesium-137 emits beta radiation, its gamma radiation is of greater concern.The health hazard of carbon-14 isassociated with cell damage caused by the ionizing radiation that results from radioactive decay, withthe potential for subsequent cancer induction. Lifetime cancer mortality risk coefficients have been calculated for nearly allradionuclides, including carbon-14 (see box at right).Additional values are also available,including for inhalation of carbon-14 as a gaseous oxide, i.e., as carbon monoxide and carbon dioxide.Nuclear weapons testing brought about a reaction that simulated atmospheric production of carbon 14 in unnatural quantities.The huge thermal neutron flux produced by nuclear bombs reacted with nitrogen atoms present in the atmosphere to form carbon 14.Buchholz [Lawrence Livermore National Laboratory scientist] found that people born around or after the nuclear bomb tests corresponded to atmospheric concentrations several years after the subjects' birth, indicating substantial postnatal DNA syntheses.