Retraction: Madhloom, H.M. et al. Modeling Spatial Distribution of Some Contamination within the Lower Reaches of Diyala River Using IDW Interpolation. Sustainability 2018, 10, 22

The Sustainability Editorial Office has been made aware that the published paper [1] has a significant overlap with a previously written, yet unpublished thesis [2]. The overlap included a number of identical diagrams, figures, samples and the analysis of the samples, as well as the application of the model [2] The previous manuscript had a different authorship to Reference [1]. Therefore, the Sustainability Editorial Office has taken the decision to retract Reference [1] in order to preserve academic integrity. We apologize to the readers of Sustainability and to the authors of the previous work. The decision to retract has been taken in agreement with the authors of Reference [1]. MDPI is a member of the Committee on Publication Ethics and takes the responsibility to enforce strict ethical policies and standards very seriously. To ensure the addition of only high-quality scientific works to the field of scholarly publication, Reference [1] is retracted and shall be marked accordingly.