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Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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HESS | Articles | Volume 24, issue 10
Hydrol. Earth Syst. Sci., 24, 4763–4775, 2020
https://doi.org/10.5194/hess-24-4763-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Hydrol. Earth Syst. Sci., 24, 4763–4775, 2020
https://doi.org/10.5194/hess-24-4763-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 05 Oct 2020

Research article | 05 Oct 2020

Ionic aluminium concentrations exceed thresholds for aquatic health in Nova Scotian rivers, even during conditions of high dissolved organic carbon and low flow

Shannon M. Sterling et al.

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by editor) (03 Apr 2020) by Matthew Hipsey
AR by Shannon Sterling on behalf of the Authors (08 Apr 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (18 May 2020) by Matthew Hipsey
Publications Copernicus
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Short summary
Wild salmon numbers in Nova Scotia, Canada, have been plummeting in recent decades. In 2014, we launched an ionic aluminium monitoring program in Nova Scotia to see if this toxic element was a threat to salmon populations. We found that all 10 monitored rivers had ionic aluminium concentrations that exceeded the threshold for aquatic health. Our results demonstrate that elevated aluminium still threatens aquatic ecosystems and that delays in recovery from acid rain remains a critical issue.
Wild salmon numbers in Nova Scotia, Canada, have been plummeting in recent decades. In 2014, we...
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