The European Union (EU) has mechanisms in place to support countries when an environmental emergency strikes and it deploys experts to assist the local community. These experts may find themselves in a chaotic situation, in which local and national authorities are overwhelmed. Collating the necessary evidence from scattered sources to conduct a robust risk assessment is a major challenge and deployed experts may not have access to the necessary technical expertise.Therefore, the European Multiple Environmental Threats Emergency Network (EMETNET) project is building a simple, efficient and robust methodology to enable the rapid risk assessment (RRA) of environmental emergencies. The RRA, which will be delivered to the European Commission (EC), presents an overview of potential and actual health and environmental impacts of the event. A network of risk assessors is being built to carry out this RRA and provide back-office support to deployed experts, enabling them to have rapid access to information and expertise. EMETNET builds on existing methodologies for the RRA of environmental emergencies, in particular, on a methodology developed for serious cross-border chemical health threats.The EMETNET methodology will support the selection of experts and assets deployed to affected regions and provide a snapshot assessment to experts en route to disaster zones. It will aid defensible decision-making, communication, planning and risk management. Furthermore, it will ensure a harmonised understanding of the associated health, environmental and cross-sectoral impacts of an environmental emergency.

Every year, numerous environmental disasters and emergencies occur across the globe with far-reaching impacts on human health and the environment. The ability to rapidly assess an environmental emergency to mitigate potential risks and impacts is paramount. However, collating the necessary evidence in the early stages of an emergency to conduct a robust risk assessment is a major challenge. This article presents a methodology developed to help assess the risks and impacts during the early stages of such incidents, primarily to support the European Union Civil Protection Mechanism but also the wider global community in the response to environmental emergencies. An online rapid risk and impact assessment tool has also been developed to promote enhanced collaboration between experts who are working remotely, considering the impact of a disaster on the environment and public health in the short, medium, and long terms. The methodology developed can support the appropriate selection of experts and assets to be deployed to affected regions to ensure that potential public health and environmental risks and impacts are mitigated whenever possible. This methodology will aid defensible decision making, communication, planning, and risk management, and presents a harmonized understanding of the associated impacts of an environmental emergency.

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