PPT

Examples

• All

• The data indicate that these compounds are found at levels ranging from the intermediate parts per quadrillion (ppq) up to the low parts per trillion (ppt) range. Id. at 3-18.

  Academic text (1993)

• Re: the above post—analytical chemistry technology is good enough that it can probably detect, in most anybody, find ppt (parts per trillion) amounts of just about any naturally occurring element, as well.

  Blog text (10)

• 408 general observations for PCDD and PCDF levels in soils based on the various reported data indicate that concentrations associated with industrial sites are the highest, with concentrations in the hundreds to thousands of parts per trillion (ppt). Id. at 3-5.

  Academic text (1993)

• The chemical levels were measured in parts per trillion (PPT) to ensure accuracy in the results.

• In environmental studies, pollutants are often detected at concentrations as low as parts per trillion (PPT).

• The laboratory reported that the contaminants were present at an alarming rate of 350 parts per trillion (PPT) in the water sample.

Surface Forms

Etymology