Expression of Concern: Environ Earth Sci (2016) 75:415 https://doi.org/10.1007/s12665-015-5135-7

The Editors-in-Chief of Environmental Earth Sciences are issuing an editorial expression of concern to alert readers that this article (Amirmojahedi et al. 2016) shows evidence of substantial text overlap [most notably with the articles cited (Mohammadi et al. 2015, 2016; Gocić et al. 2015)] and authorship manipulation. None of the authors responded to correspondence about this editorial expression of concern.