Abstract
The objective of this study was to assess the current chemistry of trace elements in upland headwater lakes in Ireland and determine their trends during the last decade in response to decreasing emissions. Twenty-nine upland lakes were sampled in 2017-2018; 19 were previously sampled in 2007-2008. The 2017-2018 samples were analyzed for conductivity, pH, DOC, and 18 trace elements. The lakes had low element concentrations; only 7 of 18 trace elements were > 1µg/L (Fe, Al, Zn, Mn, B, Sr and Ba). Nine elements were assessed for significant decadal changes; four elements decreased (B, Co, Mn, and Sr) and one increased (Pb). Their correlation with conductivity, pH, and DOC and the associated changes in those variables partially explained the observed trends. In general, elements that were correlated with DOC did not decrease, while those that were not correlated decreased between the two periods. Despite decreased anthropogenic emissions, ecosystem recovery and climate perturbations can confound or mask the benefits of emissions reductions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Bulletin of environmental contamination and toxicology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.