High impact information on Background Radiation

• OPS of a standardized list of sites to document background radiation activity and of tumor sites, resection margins and tumor beds was performed [1].
• Antioxidant levels in blood, liver and eggs were reduced in Chernobyl, Ukraine, compared with an uncontaminated control area, and levels of antioxidants correlated negatively with levels of background radiation [2].
• Exposure to indoor background radiation and urinary concentrations of 8-hydroxydeoxyguanosine, a marker of oxidative DNA damage [3].
• Tandem duplication and copy number polymorphism of the SRY gene in patients with sex chromosome anomalies and males exposed to natural background radiation [4].
• PURPOSE: Alpha-radiation from polonium-210 ((210)Po) can elevate background radiation dose by an order of magnitude in people consuming large quantities of meat and seafood, particularly caribou and reindeer [5].

Biological context of Background Radiation

• It is concluded that the ICRP recommendations on action levels of indoor exposures to radon and thoron and daughter nuclides suggest a stricter dose limitation for occupational exposures than for exposure of the population to enhanced natural radiation [6].
• Ramsar, a northern coastal city of Iran, overlooking the Caspian Sea, has some high level natural radiation areas (HLNRAs) as well as over 50 hot springs with low and high radium contents used as spas by the public and vacationers [7].

Anatomical context of Background Radiation

• The response of the cells cultured at elevated background radiation levels to subsequent challenging treatment with gamma-radiation or MNNG was identical to that of the control cultures [8].

Associations of Background Radiation with chemical compounds

• A decade ago, interest in "enhanced" natural radiation was focused primarily on localized industrial activities, e.g., uranium, radium, thorium and phosphate production [9].
• The radiation doses from the observed amounts of iodine and cesium isotopes reported in this study reflect only a marginal addition to the already existing dose from the natural environmental background radiation [10].
• The effective dose from caesium has been 50 times smaller than that from environmental sources of the natural radiation estimated for the region under study to be 1.61 mSv x y(-1) [11].
• A new experimental setup using a CO2 laser for heating the sample has been designed allowing measurement with controllable blackbody radiation background at temperatures up to 2200 K [12].
• The galactic cosmic rays (GCR) contain fully stripped nuclei, from Hydrogen to beyond the Iron group, accelerated to high energies and are a major component of the background radiation encountered by satellites and interplanetary spacecraft [13].

Gene context of Background Radiation

• Employing 'Taqman Probe Assay' specific to the SRY gene, we screened 16 DNA samples from patients with SCRA and 36 samples from males exposed to high levels of natural background radiation (HNBR) [4].
• Spatial variation of natural radiation and childhood leukaemia incidence in Great Britain [14].
• The exposure to high background radiation in HBRA of Yangjiang was not related to NPC risk with or without the adjustment for those major risk determinants of NPC [15].
• Background radiation generates suprabasal ROS bursts along charged particle tracks several times a year in each nanogram of tissue, i.e., average mass of a mammalian cell [16].
• Lung cancer and natural radiation in an Italian province [17].

References