 to define the manner in which the sources of environmental pollution can increase the level of contamination.  Appendix A. Supplementary material {#s0000} ==================================  Supplementary material  Supplementary data associated with this article can be found in the online version at [doi:00.0000/j.dib.0000.00.000](http://dx.doi.org/00.0000/j.dib.0000.00.000){#ir0000}.  