Journal ArticleDOI
The contribution of humic substances to the acidity of colored natural waters
TLDR
In this article, an operationally defined carboxyl content of humic substances extracted from rivers, streams, lakes, wetlands, and groundwaters throughout the United States and Canada is reported.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1983-11-01. It has received 530 citations till now. The article focuses on the topics: Humic acid.read more
Citations
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Book
Organic geochemistry of natural waters
TL;DR: The first part of the book as mentioned in this paper is a general overview of the amount and general nature of dissolved organic carbon in natural waters, and the second part is a summary of the data that has accumulated from many disciplines over the last decade.
Journal ArticleDOI
A review of the export of carbon in river water: fluxes and processes.
TL;DR: This review summarizes data on exports of carbon from a large number of temperate and boreal catchments in North America, Europe and New Zealand, finding a lack of information on the flux of particulate organic carbon and dissolved CO2 is highlighted.
Journal ArticleDOI
Molecular characterization of dissolved organic matter (DOM): a critical review
TL;DR: Advances in water chemistry in the last decade have improved knowledge about the genesis, composition, and structure of dissolved organic matter, and its effect on the environment, and improved purification methods have enabled facile desalting and concentration of freshly collected DOM samples, thereby complementing the analytical process.
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Metal bioavailability and toxicity to fish in low-alkalinity lakes: A critical review.
Douglas J. Spry,James G. Wiener +1 more
TL;DR: Additional work with fish is needed to better assess (1) the toxicity of aqueous metals in low-alkalinity waters, and (2) the toxicological significance of dietary methylmercury and cadmium.
References
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Journal ArticleDOI
Determination of the equivalence point in potentiometric titrations. Part II
TL;DR: In this article, the potential -volume curve obtained during potentiometric titrations shows only a small potential change at the end-point, and it has been customary to plot a deltaE/deltaV-volume curve and to take the peak of this curve as the equivalent point.
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Preparative isolation of aquatic humic substances.
E. M. Thurman,Ronald L. Malcolm +1 more
TL;DR: The drop impact sampler developed by the Bureau of Mines is based on the stain technique for measuring airborne drops and makes it possible to determine rates of depositions and spatial concentrations.
Journal ArticleDOI
Importance of heavy metal-organic matter interactions in natural waters
J.H. Reuter,E.M. Perdue +1 more
TL;DR: In this paper, the role of organic ligands in metal complexing in natural waters has received little attention because of uncertainties regarding both the abundance and nature of dissolved organic carbon compounds, and it has been shown that the bulk of the dissolved organic matter in the natural waters consists of highly oxidized and chemically and biologically stable polymeric compounds closely resembling soil humic substances.
Journal ArticleDOI
Organic and inorganic geochemistry of some coastal plain rivers of the southeastern United States
TL;DR: In a comprehensive study of the distribution of organic and inorganic constituents in natural waters, the chemical compositions of several rivers flowing through the Coastal Plain of southeast Georgia (the Satilla River, in particular) have been investigated as discussed by the authors.