Qiyun Zhang, Simon Hansul, Moeris Samuel, Lynn Vanhaecke, Kristof Demeestere, Karel De Schamphelaere
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引用次数: 0
Abstract
Belgian coastal waters are influenced by densely populated cities, industrial activities, and marine shipping, and they are therefore subject to chemical contamination. In the NewSTHEPS project (2012-2019), more than 150 contaminants of emerging concern (CECs) were detected in the Belgian Part of the North Sea, including hormones, personal care products (PCPs), pesticides, non-hormone pharmaceuticals, phenols, and phthalates. In this study, we developed and used an automated algorithm to calculate the marine screening level predicted no-effect concentration (PNECscreen) of substances, and to identify the organisms and organism groups most sensitive to these chemicals, based on ecotoxicological data from the ECOTOX Knowledgebase. By combining these PNECscreen values, existing Environmental Quality Standards (EQS) from the European Union (EU) Water Framework Directive (WFD), as well as predicted no-effect concentrations (PNECs) from other sources, with environmental concentrations of substances measured in the NewSTHEPS project, we assessed the risk of different classes of CECs at four sampling stations. The distribution of risks was comparable between open sea and harbor sampling locations, and also between samples collected with grab sampling and passive sampling. In total, 33 substances, including 11 hormones (natural and synthetic ones), two personal care products (PCPs), four pesticides, eight non-hormone pharmaceuticals, two phenols, and six phthalates, were found to be associated with potential environmental risks (median risk quotient > 1), with fish most frequently being the most sensitive organisms. The majority (23/33, ie > 80%) of these substances, particularly hormones and phthalates, have not been included in the EU WFD EQS directive's Priority List or associated Watch Lists. While the risks associated with pharmaceuticals were primarily driven by individual substances, hormones, phthalates, and pesticides with endocrine disrupting and/or neurotoxic potentials, were estimated to contribute to a 'something from nothing' effect, where mixture risk arises even when all individual components are present at concentrations below their effect thresholds.
期刊介绍:
Integrated Environmental Assessment and Management (IEAM) publishes the science underpinning environmental decision making and problem solving. Papers submitted to IEAM must link science and technical innovations to vexing regional or global environmental issues in one or more of the following core areas:
Science-informed regulation, policy, and decision making
Health and ecological risk and impact assessment
Restoration and management of damaged ecosystems
Sustaining ecosystems
Managing large-scale environmental change
Papers published in these broad fields of study are connected by an array of interdisciplinary engineering, management, and scientific themes, which collectively reflect the interconnectedness of the scientific, social, and environmental challenges facing our modern global society:
Methods for environmental quality assessment; forecasting across a number of ecosystem uses and challenges (systems-based, cost-benefit, ecosystem services, etc.); measuring or predicting ecosystem change and adaptation
Approaches that connect policy and management tools; harmonize national and international environmental regulation; merge human well-being with ecological management; develop and sustain the function of ecosystems; conceptualize, model and apply concepts of spatial and regional sustainability
Assessment and management frameworks that incorporate conservation, life cycle, restoration, and sustainability; considerations for climate-induced adaptation, change and consequences, and vulnerability
Environmental management applications using risk-based approaches; considerations for protecting and fostering biodiversity, as well as enhancement or protection of ecosystem services and resiliency.