The concentrations in most wells in the upper aquifer which had detectable levels were less than 10 /渭g/1. In the middle aquifer, which crops out beneath much of the urban and industrial area adjacent to the Delaware River, detectable levels of volatile organic compounds were found in 22 ...
Measuring Biodegradable Dissolved Organic Concentrations in Delaware and Schuylkill River Waters With Biofilm Reactorsdoi:AWWA WQTC57108费城水利部正在调查饮用水的生物稳定性\n通过研究有机物在整个自然过程中的分布\n(名称)动力学.生物稳定的水不支持微生物的生长\n在从处理厂传输到用户的过程中.这项研究使用...
Because of that, the concept of “gelbstoff,” or “yellow substance” in German, came about. It was simply a way to describe the composition of the mixture of numerous organic compounds within the Baltic Sea.Tannins from decomposing vegetation have colored this river red....
Research on topsoil layers at shooting ranges not only confirmed the significance of organic compounds in elemental leaching, but also identified pH as the most important factor which can even hamper elemental mobilization in organic-rich soils (Jørgensen and Willems, 1987). 4.2. Bioweathering in...
Sulfate reduction plays an important role in altering dissolved organic matter (DOM) in estuarine and coastal sediments, although its role in the production of optically active chromophoric DOM (CDOM) and a subset of fluorescent DOM (FDOM) has not been previously investigated in detail. Freshwater...
Indeed, previous studies in the Hudson River have shown that these two DOC pools do not covary (del Giorgio and Pace, in press). Moreover, higher measures of DOC lability in long-term incubations are not necessarily indicative of higher quality carbon, as there are compounds that may be ...
Other macromonomer and silane compounds that may be used to form the core-shell particles are described in U.S. Patent Application No. 2018/0210312, the contents of which are incorporated herein by reference in its entirety. One type of macromonomer that may be used to form a polymer stabil...
i.e. up to 10% of the readily culturable marine bacteria in these habitats. The distribution ofVibriospp. is shaped by various environmental parameters, notably temperature, salinity and dissolved organic carbon.Vibriospp. may utilize a wide range of organic carbon compounds, including chitin (th...
The compositions of n-alkanes in the estuarine sediments were dominated by C26-C33 long-chain n-alkanes with a strong odd-to-even carbon number predominance. In contrast, the composition of n-alkanes in the shelf sediment was dominated by nC15 to nC22 compounds. Long-chain (>C20) fatty ...
the partitioning of C to CO2and organic compounds of varying complexity and oxidation state remains poorly defined. Further, the impacts of Mn oxides on the lability of DOM, and therefore our ability to predict C exchange between soils—with ubiquitous Mn oxides—and the atmosphere remains elusive...