Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- abbreviation parts per billion
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- initialism
parts per billion
Etymologies
Sorry, no etymologies found.
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Examples
-
- Methane: Pre-Industrial: 715 ppb; Recent 1774 ppb*, Increase = 148\%
RealClimate 2009
-
- Nitrous Oxide: Pre-Industrial: 270 ppb; 319 ppb*, Increase = 18\%
RealClimate 2009
-
- Nitrous Oxide: Pre-Industrial: 270 ppb; 319 ppb*, Increase = 18\%
RealClimate 2009
-
- Methane: Pre-Industrial: 715 ppb; Recent 1774 ppb*, Increase = 148\%
RealClimate 2009
-
- Methane: Pre-Industrial: 715 ppb; Recent 1774 ppb*, Increase = 148\%
RealClimate 2009
-
- Methane: Pre-Industrial: 715 ppb; Recent 1774 ppb*, Increase = 148\%
RealClimate 2009
-
- Nitrous Oxide: Pre-Industrial: 270 ppb; 319 ppb*, Increase = 18\%
RealClimate 2009
-
- Methane: Pre-Industrial: 715 ppb; Recent 1774 ppb*, Increase = 148\%
RealClimate 2009
-
- Nitrous Oxide: Pre-Industrial: 270 ppb; 319 ppb*, Increase = 18\%
RealClimate 2009
-
- Nitrous Oxide: Pre-Industrial: 270 ppb; 319 ppb*, Increase = 18\%
RealClimate 2009
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