Diel cycling of trace elements in streams draining mineralized areas: a review

Applied Geochemistry
By: , and 

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Abstract

Many trace elements exhibit persistent diel, or 24-h, concentration cycles in streams draining mineralized areas. These cycles can be caused by various physical and biogeochemical mechanisms including streamflow variation, photosynthesis and respiration, as well as reactions involving photochemistry, adsorption and desorption, mineral precipitation and dissolution, and plant assimilation. Iron is the primary trace element that exhibits diel cycling in acidic streams. In contrast, many cationic and anionic trace elements exhibit diel cycling in near-neutral and alkaline streams. Maximum reported changes in concentration for these diel cycles have been as much as a factor of 10 (988% change in Zn concentration over a 24-h period). Thus, monitoring and scientific studies must account for diel trace-element cycling to ensure that water-quality data collected in streams appropriately represent the conditions intended to be studied.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Diel cycling of trace elements in streams draining mineralized areas: a review
Series title Applied Geochemistry
DOI 10.1016/j.apgeochem.2014.05.008
Volume 57
Year Published 2015
Language English
Publisher Elsevier
Contributing office(s) Eastern Mineral and Environmental Resources Science Center, Toxic Substances Hydrology Program
Description 10 p.
First page 35
Last page 44
Online Only (Y/N) N
Additional Online Files (Y/N) N