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A mass balance approach to investigating geochemical controls on secondary water quality impacts at a crude oil spill site near Bemidji, MN

Overview of attention for article published in Journal of Contaminant Hydrology, August 2014
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About this Attention Score

  • Among the highest-scoring outputs from this source (#37 of 340)
  • Good Attention Score compared to outputs of the same age (75th percentile)
  • High Attention Score compared to outputs of the same age and source (87th percentile)

Mentioned by

policy
1 policy source
twitter
2 tweeters

Citations

dimensions_citation
17 Dimensions

Readers on

mendeley
27 Mendeley
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Title
A mass balance approach to investigating geochemical controls on secondary water quality impacts at a crude oil spill site near Bemidji, MN
Published in
Journal of Contaminant Hydrology, August 2014
DOI 10.1016/j.jconhyd.2014.04.006
Pubmed ID
Authors

G.-H. Crystal Ng, Barbara A. Bekins, Isabelle M. Cozzarelli, Mary Jo Baedecker, Philip C. Bennett, Richard T. Amos

Abstract

Secondary water quality impacts can result from a broad range of coupled reactions triggered by primary groundwater contaminants. Data from a crude-oil spill research site near Bemidji, MN provide an ideal test case for investigating the complex interactions controlling secondary impacts, including depleted dissolved oxygen and elevated organic carbon, inorganic carbon, CH4, Mn, Fe, and other dissolved ions. To better understand these secondary impacts, this study began with an extensive data compilation of various data types, comprising aqueous, sediment, gas, and oil phases, covering a 260m cross-sectional domain over 30years. Mass balance calculations are used to quantify pathways that control secondary components, by using the data to constrain the sources and sinks for the important redox processes. The results show that oil constituents other than BTEX (benzene, toluene, ethylbenzene, o-, m- and p-xylenes), including n-alkanes and other aromatic compounds, play significant roles in plume evolution and secondary water quality impacts. The analysis underscores previous results on the importance of non-aqueous phases. Over 99.9% of the Fe(2+) plume is attenuated by immobilization on sediments as Fe(II) and 85-95% of the carbon biodegradation products are outgassed. Gaps identified in carbon and Fe mass balances and in pH buffering mechanisms are used to formulate a new conceptual model. This new model includes direct out-gassing of CH4 and CO2 from organic carbon biodegradation, dissolution of directly produced CO2, and sorption with H(+) exchange to improve pH buffering. The identification of these mechanisms extends understanding of natural attenuation of potential secondary impacts at enhanced reductive dechlorination sites, particularly for reduced Fe plumes, produced CH4, and pH perturbations.

Twitter Demographics

The data shown below were collected from the profiles of 2 tweeters 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 27 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 2 7%
Bangladesh 1 4%
Unknown 24 89%

Demographic breakdown

Readers by professional status Count As %
Researcher 7 26%
Student > Bachelor 4 15%
Student > Master 3 11%
Student > Ph. D. Student 3 11%
Professor > Associate Professor 2 7%
Other 7 26%
Unknown 1 4%
Readers by discipline Count As %
Earth and Planetary Sciences 6 22%
Environmental Science 6 22%
Agricultural and Biological Sciences 3 11%
Engineering 2 7%
Chemistry 2 7%
Other 7 26%
Unknown 1 4%

Attention Score in Context

This research output has an Altmetric Attention Score of 4. 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 01 January 2016.
All research outputs
#2,992,995
of 12,034,576 outputs
Outputs from Journal of Contaminant Hydrology
#37
of 340 outputs
Outputs of similar age
#45,581
of 193,036 outputs
Outputs of similar age from Journal of Contaminant Hydrology
#1
of 8 outputs
Altmetric has tracked 12,034,576 research outputs across all sources so far. This one has received more attention than most of these and is in the 74th percentile.
So far Altmetric has tracked 340 research outputs from this source. They receive a mean Attention Score of 2.6. This one has done well, scoring higher than 88% of its peers.
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 193,036 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 75% of its contemporaries.
We're also able to compare this research output to 8 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them