2011 Ocean particulate organic carbon derived from the MODIS-aqua
Total organic carbon (TOC) is an analytical parameter representing the concentration of organic carbon in a sample. TOC determinations are made in a variety of application areas. For example, TOC may be used as a non-specific indicator of water quality, or TOC of source rock may be used as one factor in evaluating a petroleum play.[1] For marine surface sediments average TOC content is 0.5% in the deep ocean, and 2% along the eastern margins.[2]
A typical analysis for total carbon (TC) measures both the total organic carbon (TOC) present and the complementing total inorganic carbon (TIC), the latter representing the amount of non-organic carbon, like carbon in carbonate minerals. Subtracting the inorganic carbon from the total carbon yields TOC. Another common variant of TOC analysis involves removing the TIC portion first and then measuring the leftover carbon. This method involves purging an acidified sample with carbon-free air or nitrogen prior to measurement, and so is more accurately called non-purgeable organic carbon (NPOC).[3]
^"Technically Recoverable Shale Oil and Shale Gas Resources: An Assessment of 137 Shale Formations in 41 Countries Outside the United States" (PDF). U.S. Energy Information Administration (EIA). June 2013. Retrieved June 11, 2013.
^Seiter, Katherina; Hensen, Christian; Schröter, Jürgen; Zabel, Matthias (2004). "Organic carbon content in surface sediments—defining regional provinces". Deep-Sea Research Part I: Oceanographic Research Papers. 51 (12): 2001–2026. Bibcode:2004DSRI...51.2001S. doi:10.1016/j.dsr.2004.06.014.
^Lenore S. Clescerl; Arnold E. Greenberg; Andrew D. Eaton (1999). Standard Methods for Examination of Water & Wastewater (20th ed.). Washington, DC: American Public Health Association. ISBN 0-87553-235-7. Method 5310A. Also available by online subscription at www.standardmethods.org
and 26 Related for: Total organic carbon information
Totalorganiccarbon (TOC) is an analytical parameter representing the concentration of organiccarbon in a sample. TOC determinations are made in a variety...
Dissolved organiccarbon (DOC) is the fraction of organiccarbon operationally defined as that which can pass through a filter with a pore size typically...
Total inorganic carbon (CT or TIC) is the sum of the inorganic carbon species. Carbon compounds can be distinguished as either organic or inorganic, and...
Soil carbon is the solid carbon stored in global soils. This includes both soil organic matter and inorganic carbon as carbonate minerals. It is vital...
Totalcarbon (TC) is an analytical parameter representing the concentration of carbon in a sample. TC includes carbon in any form, whether organic or inorganic...
inorganic carbon (DIC) is the sum of the aqueous species of inorganic carbon in a solution. Carbon compounds can be distinguished as either organic or inorganic...
in the particulate organic material, while POM refers to the total mass of the particulate organic matter. In addition to carbon, POM includes the mass...
and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms. Study of structure determines their...
approximately 1,500 gigatons of carbon. Most carbon in the terrestrial biosphere is organiccarbon, while about a third of soil carbon is stored in inorganic forms...
Organic matter, organic material, or natural organic matter refers to the large source of carbon-based compounds found within natural and engineered, terrestrial...
carbon dioxide) and organiccarbon (carbon that is, or has been, incorporated into a living thing). Part of the marine carbon cycle transforms carbon...
Typically, black carbon accounts for 1 to 6% but also up to 60% of the totalorganiccarbon stored in soils is contributed by black carbon. Especially for...
Carbon dioxide removal (CDR) is a process in which carbon dioxide (CO2) is removed from the atmosphere by deliberate human activities and durably stored...
(CFU) per volume of UPW. Particles use number per volume of UPW. Totalorganiccarbon (TOC), metallic contaminants, and anionic contaminants are measured...
component. It is the part of the broader oceanic carbon cycle responsible for the cycling of organic matter formed mainly by phytoplankton during photosynthesis...
contain 1016 tons of carbon. This makes it the most abundant source of organic compounds on earth, exceeding the totalorganic content of living matter...
of soil carbon (C). Although the C content of SOM varies considerably, SOM is ordinarily estimated to contain 58% C, and "soil organiccarbon" (SOC) is...
converts organiccarbon into carbon dioxide and a particular type of anaerobic respiration converts it into methane. After respiration, both carbon dioxide...
initially incorporated into a four-carbonorganic acid (either malate or aspartate) in the mesophyll. The organic acids then diffuse through plasmodesmata...
Carbon sequestration is the process of storing carbon in a carbon pool.: 2248 It plays a crucial role in mitigating climate change by reducing the amount...
deposition of sediments act together carbon storage rates increase. It is estimated that the total soil organiccarbon (SOC) stock in northern circumpolar...
well. Measurements of plant carbon allocation to mycorrhizal fungi have been estimated to be 5 to 20% of total plant carbon uptake, and in some ecosystems...
although small amounts of carbon leave the terrestrial biosphere and enter the oceans as dissolved organiccarbon (DOC). Most carbon in the terrestrial biosphere...
loop describes a trophic pathway where, in aquatic systems, dissolved organiccarbon (DOC) is returned to higher trophic levels via its incorporation into...
universe by mass after hydrogen, helium, and oxygen. Carbon's abundance, its unique diversity of organic compounds, and its unusual ability to form polymers...
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