In the original publication the authors have erroneously omitted to reference the Figs. 4 and 6. The correct figure caption and the reference are provided in this erratum.
the National Research Foundation(NRF)for financial support during this study
The u Mhlatuzana, u Mbilo and a Manzimnyama river catchments located on the eastern seaboard of the Kwa Zulu-Natal province, South Africa, form the core of urbanization and industrialization, contributing the only nat...