Sentence examples for usual background levels from inspiring English sources
"Across London we've not detected anything other than the usual background levels of all of the diseases that we normally see.
The residents in the exposed community were exposed to higher than usual background levels of various hydrocarbons including benzene, xylene, toluene, pristane, phytane and polycyclic aromatic hydrocarbons (PAHs).
In a short time interval during the burst (∼10s) the total amount of Cherenkov photons produced by low-energy (∼10MeV) neutrino interactions in the sea water rises well above the usual background level.
NCR077 has a higher than usual background level, possibly because of a less specific probe set, but the gene seems to be also expressed in some mycorrhizal samples (Additional file 2: Figure S2D) including a laser-capture microdissection (LCM) sample of arbuscule-containing cells [ 24].
Various factors may have influenced the differences in the results of these studies such as patient's populations (chronic or acute pain, different ages, and different levels of cognitive impairment), types of pain (usual background pain, breakthrough pain), different settings of care (clinical or experimental) and administration methods (self-administration or interview).
He spent most of his life in provincial surroundings, which provide the usual background for his works.
Background levels of genetic alterations.
Some false alarms were seen during periods of usual background activity.
Tobacco smoke levels compared to background levels.
Quantification revealed luciferase values at background levels.
