Mississippi River Methods Comparison Study: Implications for Water-Quality Monitoring of Dissolved Trace-Elements
Document Type
Article
Publication Date
5-1-1995
Department
Marine Science
Abstract
Recent reports have questioned the validity of dissolved trace element concentrations reported by the U.S. Geological Survey's National Stream Quality Accounting Network (NASQAN) as well as by other water-quality monitoring programs. To address these concerns and to evaluate the NASQAN protocols, the U.S. Geological Survey undertook the Mississippi River Methods Comparison Study. We report here the major results and implications of this study. In particular, we confirm the possible inaccuracy of previous NASQAN dissolved trace element data. The results suggest that all steps of the NASQAN protocol (sampling, processing, and analysis) require revision, though the sample filtration step appears to be of particular concern.
Publication Title
Environmental Science and Technology
Volume
29
Issue
5
First Page
1313
Last Page
1317
Recommended Citation
Taylor, H. E.,
Shiller, A. M.
(1995). Mississippi River Methods Comparison Study: Implications for Water-Quality Monitoring of Dissolved Trace-Elements. Environmental Science and Technology, 29(5), 1313-1317.
Available at: https://aquila.usm.edu/fac_pubs/5851