Emerging substances of concern in water environments

Abstract

Water pollution by chemicals is a severe worldwide problem that needs to be urgently addressed. The sound management of chemicals and the importance of ensuring a sustained access to safe water have been recognised as an integral part of sustainable development, as stated in the United Nations’ 2030 Agenda for Sustainable Development. Recently, there has been increasing concern over the presence of so-called emerging substances of concern (ESOC) within the aquatic ecosystem. The presence of these ESOCs into the aquatic environment has been increasingly associated with the discharge of poorly treated waste and wastewaters resulting from industrial, agricultural or municipal activities. In the past, regulators have solved legacy water quality challenges by imposing stricter regulations and/or standards. However, the enforcement of such regulations has proven to be challenging for most countries worldwide, mainly due to the fragmentation of related policies . However, managing the risks associated with ESOCs requires a shift from the conventional approach towards a more integrated and coordinated approach as means of ensuring sound chemicals management and attainment of a number of related sustainable development goals (SDGS). Strengthening water quality governance and ensuring that all water users are aware of their responsibility for the protection of wa ter resources and risks are adequately managed is also vital. Finally, there is a need to put in place the required resources for supporting the implementation of ESOCs management strategies.

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