nuclear-news

“..clear evidence of excess cancer risk from low dose ionizing radiation…..”              

DCEG 13th July 2020, An international team of experts in the study of cancer risks associated with low-dose ionizing radiation published the monograph, “Epidemiological studies of low-dose ionizing radiation and cancer:  Summary bias assessment and meta-analysis,” in the Journal of the National Cancer Institute on July 13, 2020. It is well established that ionizing radiation causes cancer through direct DNA damage. The general public are exposed to low doses of ionizing radiation from medical exposures like computed tomography (CT) scans, naturally occurring radiation (emitted from bedrock with the earth’s crust and cosmic rays emitted by the sun), and occupational exposures to medical, aircrew and nuclear workers.

A key question for low-dose exposures is how much of the damage can be repaired and whether other mechanisms, including inflammation, also play a role. This critical question has been long debated for radiation protection standards. After combing data from 26 epidemiological studies the authors found clear evidence of excess cancer
risk from low dose ionizing radiation: 17 of 22 studies showed risk for solid cancers and 17 of 20 studies showed risk for leukemia. The summary risk estimates were statistically significant and the magnitude of risk(per unit dose) was consistent with studies of populations exposed to higher doses.  https://dceg.cancer.gov/news-events/news/2020/low-dose-monograph?s=09

July 27, 2020 - Posted by Christina Macpherson | 2 WORLD, radiation, Reference