organic and elemental carbon
Toward a standardised thermal-optical protocol for measuring atmospheric organic and elemental carbon: the EUSAAR protocol
... into organic carbon, OC, and elemental carbon, ...wide elemental carbon-to-total carbon variation by up to a factor of ...pyrolytic carbon is considered to evolve ...
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Organic and Elemental Carbon in Atmospheric Fine Particulate Matter in an Animal Agriculture Intensive Area in North Carolina: Estimation of Secondary Organic Carbon Concentrations
... as elemental carbon (EC) and organic carbon (OC) ...[1]. Elemental carbon generates predomi- nantly from incomplete combustion process, and it has been used as a tracer for ...
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Accuracy and precision of 14 C-based source apportionment of organic and elemental carbon in aerosols using the Swiss_4S protocol
... to organic carbon (OC) and elemental carbon (EC) in carbonaceous aerosols can be quantified by measur- ing the radiocarbon ( 14 C) content of each carbon ...each carbon fraction ...
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Evaluation of organic carbon, elemental carbon, and water soluble organic carbon concentration in PM2.5 in the ambient air of Sina Hospital district, Tehran, Iran
... of organic constituents in both the particulate and gas phase of the ...determine elemental carbon (EC) and organic carbon (OC) as more general indices of air ...
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Evaluation of a two-step thermal method for separating organic and elemental carbon for radiocarbon analysis
... inally developed to minimize the charring artifact (Cachier et al., 1989) and from our tests it is clear that this approach is very successful for water insoluble compounds, but less successful for water soluble ...
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Clues for a standardised thermal-optical protocol for the assessment of organic and elemental carbon within ambient air particulate matter
... as brown carbon and/or humic-like substances (Lukacs et al., 2007). It can also arise from biomass combustion pro- cesses leading to the formation of what is called “tar balls” (Chakrabarty et al., 2010). Indeed, ...
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5644.pdf
... Adjusted for maternal race, education level, marital status, age at delivery, co-occurring ozone, elemental carbon, organic carbons, and sulfates.. Table C.7 Results for SO 4 , single-p[r] ...
Organic_Class_Notes (1)
... of carbon and most carbon compounds. Elemental carbon is found in nature as a ...of organic compounds and the types of reactions they ...
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Particulate matter components and subclinical atherosclerosis: common approaches to estimating exposure in a Multi-Ethnic Study of Atherosclerosis cross-sectional study
... metropolitan areas, we investigated cross-sectional associations of estimated long-term exposure to total PM2.5 mass and PM2.5 components (elemental carbon [EC], organic carbon [OC], sil[r] ...
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The carbonaceous aerosol levels still remain a challenge in the Beijing Tianjin Hebei region of China: Insights from continuous high temporal resolution measurements in multiple cities
... of organic carbon (OC) and elemental carbon (EC) in airborne fine particles was performed using semi-continuous OC/EC analyzers in Beijing, Tianjin, Shijiazhuang and Tangshan in the ...
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Carbon pool trends and dynamics within a subtropical peatland during long-term restoration
... stimulate organic matter decomposition and reduced rainfall, and surface water flow into wetlands due to a drier climate could lead to compaction of organic soils allowing for rapid subsidence (Reddy et ...
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Budget and distribution of organic carbon in Taxus cuspidata forest in subalpine zone of Mt. Halla
... Soil was collected in intervals of 10 cm up to 30 cm in depth at three different spots. They were then sealed in envelops and taken to the laboratory. Five grams of air-dried soil was weighed after being dehydrated at ...
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Greenhouse Gas Emissions in Long Term Agricultural Production Systems.
... due to its ability to retain moisture which is ideal for denitrification to occur. These higher rates of denitrification in no-till systems have been noted in some studies (Grandy et al. 2006; Cavigelli et al. 2012; ...
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Do microbes matter in climate change?
... of carbon, microbes are involved in the xation of carbon dioxide into organic ...these organic compounds and release carbon ...constituent organic compounds are carried out by ...
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Assessment of Heavy Metals, pH, Organic Matter and Organic Carbon in Roadside Soils in Makurdi Metropolis, Benue State, Nigeria
... Air pollution can cause health problem, it can also damage the environment and property. It causes the thin- ning of the protective ozone layer of the atmosphere thus leading to climate changes. Air pollution results ...
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Dissolved organic nitrogen in the river test and estuary
... (composed of simple organic molecules) was considered to decompose more rapidly than larger HMW molecules (Saunders, 1976). A more recent study suggests that bioavailable LMW makes up only a small fraction of DOM ...
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Understory vegetation plays the key role in sustaining soil microbial biomass and extracellular enzyme activities
... enzymes was also higher in the None treatments than in the Understory treatments. This suggests that in the absence of understory vegetation microbes invested more in C acquisi- tion than N acquisition because the ...
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Labile forms of carbon and soil aggregates
... Leptosol compared to other soil types is different. This soil contains free calcium and in the case of skeletal Rendzic Letosols also drought plays an important role. Such conditions were during most of the year also in ...
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Status of Carbon Pool in Grazed and Un-Grazed Range Lands, Pabbi Hills, Pakistan
... | Carbon sequestration study was conducted in grazed and in un-grazed sites at Pabbi hills Kharian, District Gujarat, ...Pakistan. Carbon is played a vital role in the green house gases. Carbon ...
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Organic Carbon, Nitrogen and Phosphorus Contents of Some Soils of Kaliti Tea_Estate, Bangladesh
... measurements. Organic carbon contents of the soils are found to be medium and ranged from ...of organic carbon content is thought to be due to its rapid decomposition caused by high rainfall ...
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