We have recently removed sunlit plant foliage major, minor, and trace element data (DP1.10026.001, cfc_elements table) collected in 2017 and 2018 from the portal.
In working with these data, an external researcher identified suspicious foliar P values from one site. While the analytical lab did not at first notice anything amiss and maintained that the analyses and calculations were sound, results from an independent check conducted using a different method revealed lower, more reasonable values.
We suspect this is an issue with dilution tracking and corrections in the original analyses, and are working with the analytical lab to get to the bottom of the issue. To err on the side of caution we have taken all samples analyzed by this lab off the portal until a more thorough investigation can be completed.
The data will be reinstated when the values can be confirmed. If this is not possible, we will explore sample re-analysis. For questions about these foliar data and samples, please submit them to our feedback form; please select DP1.10026.001 in the Data Product dropdown list and include the term "INC0033078" in the body of your request.
