radon

(redirected from emanation)
Also found in: Dictionary, Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.
Related to emanation: radioactive emanation

radon

Colorless, odorless gas that occurs naturally due to the breakdown of minerals in the earth. It tends to become trapped in our modern, nearly air-tight homes. Since there has been some correlation between radon and lung cancer, the EPA recommends levels no higher than 4 picocuries per liter (pCi/L), although generally acceptable levels are in the range of 4 to 8 pCi/L. The EPA Web site at www.epa.gov has information on testing for radon and reducing it.

References in periodicals archive ?
This is unlike al-Tusi whose approach comes very close to that of Leibniz, despite the differences that may exist between the two projects: the first, as we have already stated, intends to solve mathematically the issue of the emanation of the multiplicity from the One, which in the end brought him to galvanise the Avicenian doctrine of creation with a combinatorial armature; the second wanted in fact to build an ars inveniendi on the combinatorial.
The similarity of the process of emanation and the shared use of srj in the upanisad and JS 4, 4d do not suffice to prove that this upanisadic passage formed the model for the Pancaratra fourfold system of emanation.
After Itten intimates rationality and order, but its extrapolated spectrum subtly opens up the possibility of subjective experience; like a body desired, it is alive with chromatic emanation, the light of life.
However, his understanding of textualism systematically drives interpreters toward results that are far more individualistic than judicial flights into constitutional values and emanations, which will almost invariably have a collectivist bent.
I suppose Observation Box has a certain malevolent emanation.
It took on more meaning, however, as the nineteenth century progressed and by midcentury, after Emerson's essays Nature (1836) and "The OverSoul" (1841) had appeared, was so infused with spiritual significance that it signaled a divine emanation whenever uttered.
a privately held manufacturer and provider of security products and solutions announced today that it has acquired EMCON Emanation Control Limited, a Canadian-based company specializing in development, testing, certification, and manufacturing of TEMPEST and Zone data processing equipment.
The purpose of the shutdown is to minimize further odor emanation until some major odor related repairs can be made.
A Neoplatonic emanation provides a causal explana- tion for the existence of Aristotle's incorporeal substances, including the active intellect.
Le G 24, emanation du groupe des 77, a ete cree en 1971 pour coordonner la position des marches emergents et des pays en developpement sur les questions relatives au systeme monetaire et financier international et pour veiller a la bonne representation de leurs interets au sein des institutions de Bretton Woods.
Seventeen pieces from the last several years represented two primary impulses pursued by Turrell across his distinguished career-long engagement with light: deploying it, on the one hand, as a paradoxically material presence designed to draw our perceptual attention outward, toward the spectral volumetric "objects" it creates, and, on the other, as a dematerialized emanation designed to turn viewers' psychic attention inward by altering their experience of the larger physical environment.
Emanation challenges in polyurethane foam related to regulatory, environmental and consumer concerns will also be discussed through formulation and raw material innovations.