Trace-Element Concentrations in Tissues of Aquatic Organisms from Rivers and Streams of the United States, 1992-1999

Data Series ◽  
10.3133/ds309 ◽  
2007 ◽  
Author(s):  
Lawrence R. DeWeese ◽  
Verlin C. Stephens ◽  
Terry M. Short ◽  
Neil M. Dubrovsky
Keyword(s):  
United States ◽  
Trace Element ◽  
Aquatic Organisms ◽  
The United States ◽  
Element Concentrations ◽  
Rivers And Streams

scholarly journals Major- and trace-element concentrations in soils from two continental-scale transects of the United States and Canada

2005 ◽  
Author(s):  
David B. Smith ◽  
William F. Cannon ◽  
Laurel G. Woodruff ◽  
Robert G. Garrett ◽  
Rodney Klassen ◽  
...  
Keyword(s):  
United States ◽  
Trace Element ◽  
The United States ◽  
Continental Scale ◽  
Element Concentrations

scholarly journals Distribution of toenail selenium levels in young adult Caucasians and African Americans in the United States: The CARDIA Trace Element Study

2011 ◽  
Vol 111 (4) ◽  
pp. 514-519 ◽  
Author(s):  
Pengcheng Xun ◽  
Deborah Bujnowski ◽  
Kiang Liu ◽  
J. Steve Morris ◽  
Zhongqin Guo ◽  
...  
Keyword(s):  
United States ◽  
Young Adult ◽  
African Americans ◽  
Trace Element ◽  
The United States ◽  
Trace Element Study ◽  
Element Study

scholarly journals Quantification of silver in several samples using a new ionophore polymer membrane as an optical sensor

RSC Advances ◽  
2021 ◽  
Vol 11 (56) ◽  
pp. 35300-35310
Author(s):  
Hesham H. El-Feky ◽  
Abdelrazek M. Askar ◽  
Alaa S. Amin
Keyword(s):  
United States ◽  
Environmental Protection ◽  
Drug Administration ◽  
Optical Sensor ◽  
Environmental Protection Agency ◽  
Food And Drug Administration ◽  
Aquatic Organisms ◽  
The United States ◽  
Polymer Membrane ◽  
Protection Agency

Growing concerns about the possible toxicity of silver to aquatic organisms, bacteria and humans have led to newly issued regulations by the United States Environmental Protection Agency and the Food and Drug Administration regarding the use of silver.

Anemia and Leukopenia in a Long-Term Parenteral Nutrition Patient During a Shortage of Parenteral Trace Element Products in the United States

2012 ◽  
Vol 37 (3) ◽  
pp. 425-429 ◽  
Author(s):  
Pornpoj Pramyothin ◽  
Dong Wook Kim ◽  
Lorraine S. Young ◽  
Sanit Wichansawakun ◽  
Caroline M. Apovian
Keyword(s):  
United States ◽  
Parenteral Nutrition ◽  
Trace Element ◽  
The United States

scholarly journals Empirical Characterization Factors for Life Cycle Assessment of the Impacts of Reservoir Occupation on Macroinvertebrate Richness across the United States

2021 ◽  
Vol 13 (5) ◽  
pp. 2701
Author(s):  
Gabrielle Trottier ◽  
Katrine Turgeon ◽  
Francesca Verones ◽  
Daniel Boisclair ◽  
Cécile Bulle ◽  
...  
Keyword(s):  
United States ◽  
Environmental Protection Agency ◽  
Spatial Scales ◽  
Variation Partitioning ◽  
Strong Support ◽  
The United States ◽  
Freshwater Ecosystems ◽  
Characterization Factors ◽  
Rivers And Streams ◽  
Time Substitution

The transformation of a river into a reservoir and the subsequent occupation of the riverbed by a reservoir can impact freshwater ecosystems and their biodiversity. We used the National Lake Assessment (134 reservoirs) and the National Rivers and Streams Assessment (2062 rivers and streams) of the United States Environmental Protection Agency in order to develop empirical characterization factors (CFs; in Potentially Disappeared Fraction of species [PDF]) evaluating the impacts of reservoir occupation on macroinvertebrate richness (number of taxa) at the reservoir, ecoregion and country spatial scales, using a space-for-time substitution. We used analyses of variance, variation partitioning, and multiple regression analysis to explain the role of ecoregion (or regionalization; accounting for spatial variability) and other potentially influential variables (physical, chemical and human), on PDFs. At the United States scale, 28% of macroinvertebrate taxa disappeared during reservoir occupation and PDFs followed a longitudinal gradient across ecoregions, where PDFs were higher in the west. We also observed that high elevation, oligotrophic and large reservoirs had high PDF. This study provides the first empirical macroinvertebrate-based PDFs for reservoir occupation to be used as CFs by LCA practitioners. The results provide strong support for regionalization and a simple empirical model for LCA modelers.

scholarly journals Changes in freshwater macroinvertebrate richness due to river impoundment in the United States

2019 ◽  
Author(s):  
Gabrielle Trottier ◽  
Katrine Turgeon ◽  
Francesca Verones ◽  
Daniel Boisclair ◽  
Cécile Bulle ◽  
...  
Keyword(s):  
United States ◽  
Environmental Protection Agency ◽  
Flood Control ◽  
Spatial Scales ◽  
Strong Support ◽  
The United States ◽  
Freshwater Ecosystems ◽  
Rivers And Streams ◽  
The Impact ◽  
Time Substitution

ABSTRACTWhether it is for water supply, flood control or hydropower uses, the transformation of a river into a reservoir can impact freshwater ecosystems and their biodiversity. Using the National Lake Assessment (NLA; 148 reservoirs) and the National Rivers and Streams Assessment (NRSA; 2121 rivers and streams) of the United States Environmental Protection Agency (USEPA), we evaluated the impacts of river impoundment on macroinvertebrate biodiversity at three spatial scales (i.e., reservoir, ecoregion and country scale). We used a space-for-time substitution approach to model the impact of impoundment (i.e., we used rivers and streams as the before-impoundment conditions, and reservoirs as the after-impoundment conditions). We expressed the impact on biodiversity in terms of potentially disappeared fraction of species (PDF) to be used in the life cycle assessment (LCA) framework. To understand the role of regionalization, and some potentially influential variables, on changes in macroinvertebrate richness following impoundment in the United States, we used analyses of variance (ANOVAs) as well as variation partitioning, and developed empirical predictive models. Overall, 26% of macroinvertebrate taxa disappeared following impoundment in the United States, and PDFs followed a longitudinal gradient across ecoregions (i.e., higher PDFs in the western part of the country, lower PDFs in the eastern part). We also observed that large and oligotrophic reservoirs, located in high elevation had high PDFs. This study provides the first empirical PDF values for macroinvertebrates to be used as characterization factors (CFs) by LCA practitioners. We also provide strong support for regionalization and a simple predictive model to be used by LCA modellers.

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