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Genesis of hexavalent chromium from natural sources in soil and groundwater

Overview of attention for article published in Proceedings of the National Academy of Sciences of the United States of America, April 2007
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (80th percentile)
  • Above-average Attention Score compared to outputs of the same age and source (57th percentile)

Mentioned by

policy
2 policy sources
facebook
1 Facebook page

Citations

dimensions_citation
437 Dimensions

Readers on

mendeley
331 Mendeley
citeulike
1 CiteULike
connotea
1 Connotea
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Title
Genesis of hexavalent chromium from natural sources in soil and groundwater
Published in
Proceedings of the National Academy of Sciences of the United States of America, April 2007
DOI 10.1073/pnas.0701085104
Pubmed ID
Authors

Christopher Oze, Dennis K. Bird, Scott Fendorf

Abstract

Naturally occurring Cr(VI) has recently been reported in ground and surface waters. Rock strata rich in Cr(III)-bearing minerals, in particular chromite, are universally found in these areas that occur near convergent plate margins. Here we report experiments demonstrating accelerated dissolution of chromite and subsequent oxidation of Cr(III) to aqueous Cr(VI) in the presence of birnessite, a common manganese mineral, explaining the generation of Cr(VI) by a Cr(III)-bearing mineral considered geochemically inert. Our results demonstrate that Cr(III) within ultramafic- and serpentinite-derived soils/sediments can be oxidized and dissolved through natural processes, leading to hazardous levels of aqueous Cr(VI) in surface and groundwater.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 331 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 5 2%
Portugal 1 <1%
Ireland 1 <1%
Italy 1 <1%
Brazil 1 <1%
Switzerland 1 <1%
New Zealand 1 <1%
United Kingdom 1 <1%
Iran, Islamic Republic of 1 <1%
Other 1 <1%
Unknown 317 96%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 67 20%
Researcher 52 16%
Student > Master 43 13%
Student > Bachelor 29 9%
Student > Doctoral Student 22 7%
Other 54 16%
Unknown 64 19%
Readers by discipline Count As %
Earth and Planetary Sciences 96 29%
Environmental Science 70 21%
Agricultural and Biological Sciences 27 8%
Chemistry 14 4%
Engineering 14 4%
Other 26 8%
Unknown 84 25%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 7. 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 20 March 2022.
All research outputs
#5,121,084
of 24,625,114 outputs
Outputs from Proceedings of the National Academy of Sciences of the United States of America
#46,298
of 101,438 outputs
Outputs of similar age
#14,997
of 77,997 outputs
Outputs of similar age from Proceedings of the National Academy of Sciences of the United States of America
#294
of 699 outputs
Altmetric has tracked 24,625,114 research outputs across all sources so far. Compared to these this one has done well and is in the 79th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 101,438 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 38.8. This one has gotten more attention than average, scoring higher than 54% 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 77,997 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 80% of its contemporaries.
We're also able to compare this research output to 699 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 57% of its contemporaries.