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Shallow Groundwater Mercury Supply in a Coastal Plain Stream

Overview of attention for article published in Environmental Science & Technology, July 2012
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Title
Shallow Groundwater Mercury Supply in a Coastal Plain Stream
Published in
Environmental Science & Technology, July 2012
DOI 10.1021/es301540g
Pubmed ID
Authors

Paul M. Bradley, Celeste A. Journey, Mark A. Lowery, Mark E. Brigham, Douglas A. Burns, Daniel T. Button, Francis H. Chapelle, Michelle A. Lutz, Mark C. Marvin-DiPasquale, Karen Riva-Murray

Abstract

Fluvial methylmercury (MeHg) is attributed to methylation in up-gradient wetland areas. This hypothesis depends on efficient wetland-to-stream hydraulic transport under nonflood and flood conditions. Fluxes of water and dissolved (filtered) mercury (Hg) species (FMeHg and total Hg (FTHg)) were quantified in April and July of 2009 in a reach at McTier Creek, South Carolina to determine the relative importance of tributary surface water and shallow groundwater Hg transport from wetland/floodplain areas to the stream under nonflood conditions. The reach represented less than 6% of upstream main-channel distance and 2% of upstream basin area. Surface-water discharge increased within the reach by approximately 10%. Mean FMeHg and FTHg fluxes increased within the reach by 23-27% and 9-15%, respectively. Mass balances indicated that, under nonflood conditions, the primary supply of water, FMeHg, and FTHg within the reach (excluding upstream surface water influx) was groundwater discharge, rather than tributary transport from wetlands, in-stream MeHg production, or atmospheric Hg deposition. These results illustrate the importance of riparian wetland/floodplain areas as sources of fluvial MeHg and of groundwater Hg transport as a fundamental control on Hg supply to Coastal Plain streams.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 20 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 1 5%
Iran, Islamic Republic of 1 5%
Unknown 18 90%

Demographic breakdown

Readers by professional status Count As %
Researcher 9 45%
Student > Ph. D. Student 3 15%
Professor 2 10%
Professor > Associate Professor 2 10%
Lecturer 1 5%
Other 3 15%
Readers by discipline Count As %
Environmental Science 5 25%
Earth and Planetary Sciences 5 25%
Agricultural and Biological Sciences 4 20%
Unspecified 2 10%
Immunology and Microbiology 1 5%
Other 3 15%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 August 2012.
All research outputs
#3,082,010
of 4,507,072 outputs
Outputs from Environmental Science & Technology
#3,619
of 4,705 outputs
Outputs of similar age
#49,484
of 76,159 outputs
Outputs of similar age from Environmental Science & Technology
#151
of 212 outputs
Altmetric has tracked 4,507,072 research outputs across all sources so far. This one is in the 21st percentile – i.e., 21% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,705 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 8.4. This one is in the 14th percentile – i.e., 14% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 76,159 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 21st percentile – i.e., 21% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 212 others from the same source and published within six weeks on either side of this one. This one is in the 9th percentile – i.e., 9% of its contemporaries scored the same or lower than it.