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What does PPQ stand for?

PPQ stands for Parts per Quadrillion

This definition appears frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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We have 32 other meanings of PPQ in our Acronym Attic

Samples in periodicals archive:

These levels are so low that, actually, by the time it goes through our treatment system, we aren't going to see them even in the parts per quadrillion that we're looking at.
For example, it is currently possible to reliably measure such chemicals as dioxin in the parts per quadrillion (ppq) level and parent pesticides and their metabolites at the parts per trillion (ppt) level.
5 parts per trillion (ppt) in hardwood pulp to 6 ppt in softwood pulp, 17 ppt in pulp-mill sludge and 24 parts per quadrillion in wastewater.