Source input

The fire area is assumed to be rectangular, and estimated from the dimensions of the vessels and assuming they were within close proximity of each other. Area source inputs to the model are ... [Pg.339]

Merseburger GC, Marti E, Sabater F (2005) Net changes in nutrient concentrations below a point source input in two streams draining catchments with contrasting land uses. Sci Total Environ 347 217-229... [Pg.193]

Haggard BE, Storm DE, Stanley EH (2001) Effect of a point source input on stream nutrient retention. J Am Water Resour Assoc 37 1291-1299... [Pg.194]

Non-point-source inputs Pollutants introduced into the ocean from widely dispersed sources, such as stormwater runoff. [Pg.882]

Point-source inputs Inputs of pollutants into the ocean from discrete sources, such as sewage outfaU pipes. [Pg.884]

The major objective of this chapter is to examine and synthesize the published literature with respect to sources and production of terrestrially derived DOC, its relationship with dissolved organic nitrogen (DON), and the mechanistic controls on their export from terrestrial ecosystems to surface waters. With the exception of wet precipitation (which is ranked by continental landmass), we have classified data for throughfall and soil solution under biome type. Where possible, we have shown mean and standard deviations of some biomes to illustrate the amount of variance within and between biomes. Relationships between DOC and DON are illustrated using only those studies that report both DOC and DON concentration. Because most research on DOC and DON has been accomplished in relatively undisturbed areas, particularly forests, this chapter concentrates on the aspect of diffuse-source allochthonous inputs to surface waters and not point-source inputs from urban and agricultural areas. Recent work by Westerhoff and Anning (2000), however, indicates that more research on effluent or point-source DOC as a contributor to riverine allochthonous inputs may be... [Pg.27]

Artificial Maturation. Laboratory maturation studies provide a means to determine the influence of temperature on kerogen composition, since other variables (e.g. source input) can be eliminated. In order to study the behaviour of organically bound sulfur under these controlled conditions, Py-GC-FID/FPD was performed on a suite of solvent-extracted residues from sealed vessel (hydrous pyrolysis) experiments aimed at simulating maturation over the range involved in petroleum generation. [Pg.545]

Estuary export Atmosphere N fixation wastewater sources inputs column Denitrification Sedimentation landings Other losses Net... [Pg.338]

Galveston Bay II (Louisiana and Alabama) 420-480 Source input in low-salinity region in July Guo and Santschi (1997)... [Pg.417]

Mississippi River plume 270-330 Conservative mixing during winter but with source input during summer Benner et al. (1992)... [Pg.417]

A traditional approach utilised in geochemistry, and now also in environmental chemistry, is to consider the system under investigation a reservoir. For a given component, the reservoir has sources (inputs) and sinks (outputs). The system is said to be at equilibrium, or operating... [Pg.170]

Alcock, R. E., Sweetman, A.J.,etal (2003) Understanding levels and trends of BDE-47 in the UK and North America an assessment of principal reservoirs and source inputs. Environment International 29(6) 691-698. [Pg.262]

Moldowan J. M., Sundararaman P., and Schoell M. (1985b) Sensitivity of biomarker properties to depositional environment and/or source input in the Lower Toarcian of SW-Germany. A(/v. Org. Geochem. 10, 915-926. [Pg.3718]

I. 0). The isotopic composition of alkanes and of other classes of compounds can also be used as a general source input indicator. Isotopic fractionation resulting from the metabolic pathways involved in the synthesis of biologically produced compounds, when preserved in a dlagenetlc product, is frequently used to differentiate between terrestrial and aquatic sources. Hydrogen and carbon isotopic compositions of biogenic methanes from shallow aquatic environments is discussed in a later chapter of this volume (R. A. Burke and W. M. Sackett). The applicability of carbon isotopic data to tracing the source of deep-sea Mesozoic sediments is discussed by R.M. Joyce and E. S. Van Vleet. [Pg.3]

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