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One part per 1,000,000,000 (10 9) parts
- One part per billion (ppb) denotes one part per 1,000,000,000 (10 9) parts, and a value of 10 −9. This is equivalent to about three seconds out of a century.
en.wikipedia.org/wiki/Parts-per_notation
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PPB definition: parts per billion | Meaning, pronunciation, translations and examples
What does the abbreviation PPB stand for? Meaning: parts per billion.
Define ppb. ppb synonyms, ppb pronunciation, ppb translation, English dictionary definition of ppb. abbr. parts per billion American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing...
Mar 5, 2019 · PPB stands for parts per billion. One part per billion is one part of solute per one billion parts solvent . PPB is a commonly used unit of concentration for very small values.
- Anne Marie Helmenstine, Ph.D.
Very low solute concentrations are often expressed using appropriately small units such as parts per million (ppm) or parts per billion (ppb). Like percentage (“part per hundred”) units, ppm and ppb may be defined in terms of masses, volumes, or mixed mass-volume units.
Parts per billion (ppb) is a unit of measurement used to express the concentration of a substance in a solution or mixture. It indicates how many parts of a substance are present in one billion parts of the total mixture, making it a vital metric for assessing trace amounts of gases and pollutants in the atmosphere.
Parts per billion (ppb) is a unit of measurement used to express the concentration of one substance in a solution. It denotes one part of solute per billion parts of the total solution.
