Marine photochemistry of organic matter: processes and impacts

K Mopper, DJ Kieber, A Stubbins - Biogeochemistry of marine dissolved …, 2015 - Elsevier
Dissolved organic matter (DOM) is the strongest light-absorbing component of seawater,
especially in coastal regions, and therefore it plays a dominant role in marine photochemical …

Chemical characterization of dissolved organic matter (DOM): A prerequisite for understanding UV-induced changes of DOM absorption properties and bioavailability

B Sulzberger, E Durisch-Kaiser - Aquatic sciences, 2009 - Springer
UV-induced transformations of colored dissolved organic matter (CDOM, which is part of
dissolved organic matter, DOM) affect CDOM absorption properties resulting in the loss of …

Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromophoric dissolved organic matter

JR Helms, A Stubbins, JD Ritchie… - Limnology and …, 2008 - Wiley Online Library
A new approach for parameterizing dissolved organic matter (DOM) ultraviolet‐visible
absorption spectra is presented. Two distinct spectral slope regions (275‐295 nm and 350 …

Increasing iron concentrations in surface waters–a factor behind brownification?

ES Kritzberg, SM Ekström - Biogeosciences, 2012 - bg.copernicus.org
Browning of inland waters has been noted over large parts of the Northern hemisphere and
is a phenomenon with both ecological and societal consequences. The increase in water …

Molecular characterization of dissolved organic matter (DOM) along a river to ocean transect of the lower Chesapeake Bay by ultrahigh resolution electrospray …

RL Sleighter, PG Hatcher - Marine chemistry, 2008 - Elsevier
In this study, electrospray ionization coupled to Fourier transform ion cyclotron resonance
mass spectrometry (ESI-FTICR-MS) is utilized to molecularly characterize DOM as it is …

Changes in the compound classes of dissolved organic matter along an estuarine transect: a study using FTIR and 13C NMR

HAN Abdulla, EC Minor, RF Dias, PG Hatcher - … et Cosmochimica Acta, 2010 - Elsevier
In this work, we use Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic
resonance spectroscopy (13C NMR) data to quantify the changes of major chemical …

[PDF][PDF] 5.02—dissolved organic carbon cycling and transformation

JE Bauer, TS Bianchi - Treatise on estuarine and coastal science, 2011 - researchgate.net
This chapter reviews and synthesizes the current state of knowledge on sources,
transformations, cycling, and fluxes of dissolved organic carbon (DOC) in river-estuarine and …

Loss of optical and molecular indicators of terrigenous dissolved organic matter during long-term photobleaching

JR Helms, J Mao, A Stubbins, K Schmidt-Rohr… - Aquatic sciences, 2014 - Springer
Two water samples from the Great Dismal Swamp National Wildlife Refuge with high
dissolved organic matter (DOM) concentrations (51 and 121 mg CL− 1) were subjected to …

Factors controlling the abiotic photo-degradation of monomethylmercury in surface waters

FJ Black, BA Poulin, AR Flegal - Geochimica et Cosmochimica Acta, 2012 - Elsevier
Photo-decomposition is among the most important mechanisms responsible for degrading
monomethylmercury (MMHg) in aquatic systems, but this process is not fully understood. We …

Critical evaluation of spectroscopic indices for organic matter source tracing via end member mixing analysis based on two contrasting sources

L Yang, J Hur - Water research, 2014 - Elsevier
Despite the wide use of absorption and fluorescence spectroscopy for tracking the sources
of dissolved organic matter (DOM), there are limited studies on evaluating their source …