Environmental Risk Assessment for Contaminants of Emerging Concern in the Belgian Part of the North Sea.

IF 8.4 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Qiyun Zhang, Simon Hansul, Moeris Samuel, Lynn Vanhaecke, Kristof Demeestere, Karel De Schamphelaere
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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.

北海比利时部分新出现的污染物环境风险评估。
比利时沿海水域受到人口密集的城市、工业活动和海运的影响,因此受到化学污染。在NewSTHEPS项目(2012-2019)中,在北海比利时部分检测到150多种新出现的关注污染物(CECs),包括激素、个人护理产品(pcp)、农药、非激素药物、酚类和邻苯二甲酸盐。在这项研究中,我们开发并使用了一种自动算法来计算海洋筛选水平预测物质的无效应浓度(PNECscreen),并根据ECOTOX知识库中的生态毒理学数据确定对这些化学物质最敏感的生物和生物群体。通过将这些PNECscreen值、欧盟水框架指令(WFD)的现有环境质量标准(EQS)以及其他来源的预测无影响浓度(PNECs)与NewSTHEPS项目中测量的物质的环境浓度相结合,我们评估了四个采样站不同类别CECs的风险。风险分布在外海采样点和港口采样点之间具有可比性,在抓取采样点和被动采样点之间也具有可比性。总共有33种物质,包括11种激素(天然和合成激素)、两种个人护理产品(pcp)、4种农药、8种非激素药物、2种酚类和6种邻苯二甲酸盐,被发现与潜在的环境风险相关(风险商中位数bbb1),其中鱼类最常是最敏感的生物。这些物质中的大多数(23/33,即bbb80 %),特别是激素和邻苯二甲酸盐,尚未列入欧盟WFD EQS指令的优先清单或相关观察清单。虽然与药物相关的风险主要是由具有内分泌干扰和/或神经毒性潜力的单个物质、激素、邻苯二甲酸盐和杀虫剂驱动的,但据估计,它们会导致“无中生有”效应,即使所有单个成分的浓度低于其影响阈值,也会产生混合风险。
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来源期刊
Integrated Environmental Assessment and Management
Integrated Environmental Assessment and Management ENVIRONMENTAL SCIENCESTOXICOLOGY&nbs-TOXICOLOGY
CiteScore
5.90
自引率
6.50%
发文量
156
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.
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