These pipes over time will emit higher than background levels
of radiation, which is where NORM can get dangerous.
What we have found is that background levels
have increased and are increasing, and this should set alarm bells ringing.
A change in conductance signals that hydrogen, above the background level
, is present.
Scientists use the word epidemic to describe a cluster of incidents greater than the normal background level
As a result, cleanup to the background level
is far more expensive than cleanup to a risk standard, although it may not result in any measurable environmental or health improvement.
Figure 2 Incomplete Worksheet Positive factors Negative factors Sound transmission class -- Normal voice 62 (STC) Background level
NC -- Voice correction -- Wall STC correction -- STC reduction -- Background correction -- Total -- Total --
How do we know what the natural background level
We need some sort of background level
of QE to see us through this period, particularly while FLS has its full impact for the remainder of this year," he told a newspaper.
Before a large earthquake, that background level
of static-electricity discharges should rise sharply, Bleier said.
Despite increasingly stringent controls on our use of antibiotics, the background level
of antibiotic resistant genes, which are markers for potential resistance, continues to rise in soils.
According to a 2003 study, Bradley Landfill's leachate contained tritium at 20,100 picocuries per liter over the drinking- water limit - that's 1,000 times the normal background level
crystallite shape, distribution and dimensions); b(2[theta]) and n(2[theta]) are the background level
and the noise distribution, respectively.