A Joint List of Litter Categories for Marine Macrolitter Monitoring

The monitoring of marine macrolitter requires an unambiguous identification of its identity, enabled through an agreed list of litter categories. The Joint List of Litter Categories for Macrolitter Monitoring was prepared by the MSFD Technical Group on Marine Litter (MSFD TG ML), in close collaboration with EU Member States and the Regional Sea Conventions. The list was adopted by the MSFD Coordination Group (November 2019). It provides a comprehensive list of litter types, which occur in the coastal and marine environment. This comprehensive list can be used to enable comparable monitoring of marine litter across the European Seas and beyond, as well as across different compartments of the marine environment.JRC.D.2 - Water and Marine Resource

Identifying Sources of Marine Litter

Marine litter is a global problem causing harm to marine wildlife, coastal communities and maritime activities. It also embodies an emerging concern for human health and safety. The reduction of marine litter pollution poses a complex challenge for humankind, requiring adjustments in human behaviour as well as in the different phases of the life-cycle of products and across multiple economic sectors. The Marine Strategy Framework Directive (MSFD) requires European Member States to monitor marine litter and implement programmes of measures to reduce its occurrence. A crucial step in monitoring and effectively addressing marine litter is the identification of the origin and the pathways that lead to litter entering the marine environment. A given site or region can be subject to litter pollution from a number of sources, which can be local, regional or even distant, as litter can be transported to a specific area by ocean currents and wind drift. For this reason, pinpointing the origin of the different items that make up marine litter is a difficult task and will always have an inherent degree of associated uncertainty. Plastic food packaging recorded in the marine environment, for example, can consist of a diverse selection of items, which can be generated from a number of sources, which in turn can be sea-based or land-based and originate from near or distant regions. A wide variety of methods have been used over the years to determine the sources of marine litter, from simple counts of items believed to originate from a given source to more complex statistical methods. This report provides a brief overview of the main methods used and outlines one of the most promising approaches for determining sources – a Matrix Score Technique based on likelihoods, which considers the possibility that specific items originate from more than one source. Furthermore, it presents a series of other parameters that can be used to analyse data-sets, with regard to the use, origin and risk of items recorded in the marine or coastal environments. These can further support decision-making when considering preventive measures. Finally, recommendations to help the process of identification of sources are given, from the early stage of data collection and site characterization to bringing in the knowledge of local stakeholders to better determine where litter is coming from and what needs to be done to prevent it.JRC.D.2-Water and Marine Resource

Harm caused by Marine Litter

Marine litter is a global concern with a range of problems associated to it, as recognised by the Marine Strategy Framework Directive (MSFD). Marine litter can impact organisms at different levels of biological organization and habitats in a number of ways namely: through entanglement in, or ingestion of, litter items by individuals, resulting in death and/or severe suffering; through chemical and microbial transfer; as a vector for transport of biota and by altering or modifying assemblages of species. Marine litter is a threat not only to marine species and ecosystems but also carries a risk to human health and has significant implications to human welfare, impacting negatively vital economic sectors such as tourism, fisheries, aquaculture or energy supply and bringing economic losses to individuals, enterprises and communities. This technical report aims to provide clear insight about the major negative impacts from marine litter by describing the mechanisms of harm. Further it provides reflexions about the evidence for harm from marine litter to biota comprising the underlying aspect of animal welfare while also considering the socioeconomic effects, including the influence of marine litter on ecosystem services. General conclusions highlight that understanding the risks and uncertainties with regard to the harm caused by marine litter is closely associated with the precautionary principle. The collected evidence in this report can be regarded as a supporting step to define harm and to provide an evidence base for the various actions needed to be implemented by decision-makers. This improved knowledge about the scale of the harmful effects of marine litter will further support EU Member States (MSs) and Regional Seas Conventions (RSCs) to implement their programme of measures, regional action plans and assessments.JRC.D.2-Water and Marine Resource

Enhancing public awareness and promoting co-responsibility for marine litter in Europe: The challenge of MARLISCO

Marine litter is a pervasive and complex societal problem but has no simple solution. Inadequate practices at all levels of production–use–disposal contribute to accumulation of waste on land and at sea. Enhanced societal awareness but also co-responsibility across different sectors and improved interactions between stakeholders are necessary. MARLISCO was a European initiative, which developed and implemented activities across 15 countries. It worked towards raising societal awareness and engagement on marine litter, through a combination of approaches: public exhibitions in over 80 locations; a video competition involving 2100 students; and a legacy of educational and decision-supporting tools. 12 national participatory events designed to facilitate dialogue on solutions brought together 1500 stakeholders and revealed support for cross-cutting, preventive measures. Evaluation during implementation shows that these activities are effective in improving individuals' perceptions about the problem but also commitment in being part of the solution. This paper summarises MARLISCO's approach and highlights a selection of outcomes

A European threshold value and assessment method for macro litter on coastlines

The Marine Strategy Framework Directive (MSFD, 2008/56/EC) requires that European threshold values (TVs) for marine litter (descriptor 10) be defined. The MSFD Technical Group on Marine Litter (TG ML) decided to focus on coastline litter (Criterion 1), often referred to as beach litter, in a first step, since for this criterion a monitoring framework is in place and a substantial amount of fit-for-purpose beach litter monitoring data is available at the European scale (see Hanke et al., 2019). This report describes the rationale and method to obtain a European TV for beach litter, as developed by Member States and other experts within the TG ML. It was concluded by TG ML that a TV cannot be based on quantitative ecological and socio-economic harm due to a lack of scientific data on harm caused by marine litter on beaches. Of the remaining options, the use of the 10th percentile value of the total litter abundance dataset from all European beaches in the baseline period 2015-2016 was selected and applied, as it was considered to be sufficiently precautionary while being based on already available beach litter abundances in the EU. The underlying baseline dataset was developed within the TG ML. Calculation of the 10th percentile of the EU baseline dataset resulted in a value of 13 litter items per 100 m of coastline length. Further consideration of the 95% confidence intervals of the TV and assessment value, respectively, led to a final TV of 20 litter items/100 m beach length, which corresponds to the 15th percentile value of the EU baseline dataset. This TV is estimated by experts from TG ML to reduce harm from beach litter to a sufficiently precautionary level. The methodology acknowledges uncertainties in the underlying data which is considered in the proposal. The median assessment value is compared with this TV for compliance checking. It is acknowledged that achieving this TV will require substantial and sustained measures over a longer period. Intermediate targets over time towards the proposed TV are proposed to support the achievement of the TV.JRC.D.2 - Water and Marine Resource

Setting the course: aligning European Union marine pollution policy ambitions with environmental realities

Pollution in coastal and marine waters is a global challenge that transcends national boundaries, affecting interconnected seas, the ocean and broader ecosystems. Addressing marine pollution requires policies that encompass not only the marine domain but the entire ecosystem, including human societies. Therefore, a comprehensive and integrated governance approach, linking land-based sources to marine environments, is essential for effective pollution management and mitigation. This study assesses the current environmental status of persistent, long-lasting and emerging pollutants (PCBs, excess nutrients, microplastics, PFAS, and underwater noise) and cumulative effects of pollution, and compares these with the set European Union (EU) environmental goals and ambitions. A systematic review of EU policy documents reveals that several targets are unclear, arbitrary, and often unattainable, limiting the effectiveness of current strategies. This paper presents five actionable recommendations to strengthen marine environmental policy, emphasizing the need for better alignment between EU ambitions and environmental realities. To enhance EU pollution policies, it is crucial to reinforce regulatory frameworks, ensure the effective enforcement of existing legislation, foster collaboration across sectors, and empower citizens and NGOs. Additionally, integrating health and pollution policies, ensuring public access to pollution data and knowledge, and establishing international leadership in pollution efforts are key for making informed decisions and achieving ambitious pollution reduction targets

Guidance on Monitoring of Marine Litter in European Seas

This publication is a Reference Report by the Joint Research Centre of the European Commission.The MSFD Technical Subgroup on Marine Litter was tasked to deliver guidance so that European Member States could initiate programmes for monitoring of Descriptor 10 of the MSFD. The present document provides the recommendations and information needed to commence the monitoring required for marine litter, including methodological protocols and categories of items to be used for the assessment of litter on the Beach, Water Column, Seafloor and Biota, including a special section on Microparticles

Tobacco Smoke: Involvement of Reactive Oxygen Species and Stable Free Radicals in Mechanisms of Oxidative Damage, Carcinogenesis and Synergistic Effects with Other Respirable Particles

Tobacco smoke contains many toxic, carcinogenic and mutagenic chemicals, as well as stable and unstable free radicals and reactive oxygen species (ROS) in the particulate and the gas phase with the potential for biological oxidative damage. Epidemiological evidence established that smoking is one of the most important extrinsic factor of premature morbidity and mortality. The objective of this study was to investigate oxidative and carcinogenic mechanisms of tobacco and synergistic action with other respirable particles in the respiratory system of smokers. Electron Paramagnetic Resonance (EPR) and spin-trapping techniques were used to study stable free radicals in the cigarette tar, and unstable superoxide anion (O2•−) and hydroxyl (HO•) radicals in the smoke Results showed that the semiquinone radical system has the potential for redox recycling and oxidative action. Further, results proved that aqueous cigarette tar (ACT) solutions can generate adducts with DNA nucleobases, particularly the mutagenic 8-hydroxy-2’-deoxyguanosine (a biomarker for carcinogenesis). Also, we observed synergistic effects in the generation of HO•, through the Fenton reaction, with environmental respirable particles (asbestos fibres, coal dust, etc.) and ambient particulate matter (PM), such as PM10, PM2.5 and diesel exhaust particles (DEP). The highest synergistic effects was observed with the asbestos fibres (freshly grounded), PM2.5 and DEP. Finally, we discuss results from our previous study of conventional cellulose acetate filters and “bio-filters” with hemoglobin impregnated activated carbon, which showed that these filters do not substantially alter the free radical content of smoke in the particulate and in the gaseous phase

Guidance on the monitoring of marine litter in European seas

The Marine Strategy Framework Directive (MSFD) Technical Group on Marine Litter developed the ‘Guidance on monitoring of marine litter in European seas’ in 2013 to enable EU Member States to launch monitoring programmes for MSFD Descriptor 10: ‘no harm caused by marine litter’. The maturity of methodological protocols for marine litter monitoring has increased over the last 10 years, based on research advances and Member States’ efforts. This document updates the previous guidance to facilitate the harmonisation of the monitoring framework for the MSFD, including protocols, recommendations, and information required to increase the comparability of data and assessments among Member States. The document comprises chapters dedicated to the protocols for monitoring marine litter across different marine environmental compartments (i.e. the coastline/beach, the surface layer of the water column, the seafloor/seabed) and types of litter (i.e. macro litter, mesolitter, microlitter, ingested litter and microlitter by biota, and entanglement with litter).JRC.D.2 - Ocean and Wate

Meeting of the Ecosystem Approach Correspondence Group on on Pollution Monitoring (CorMon Pollution)

In accordance with the UNEP/MAP Programme of Work adopted by COP 21 for the biennium 2020-2021, the United Nations Environment Programme/Mediterranean Action Plan-Barcelona Convention Secretariat (UNEP/MAP) and its Programme for the Assessment and Control of Marine Pollution in the Mediterranean (MED POL) organized the Meeting of the Ecosystem Approach Correspondence Group on Pollution Monitoring (CorMon on Pollution Monitoring). The Meeting was held via videoconference on 26-27 April 2021. 2. The main objectives of the Meeting were to: a) Review the Monitoring Guidelines/Protocols for IMAP Common Indicator 18, as well as the Monitoring Guidelines/Protocols for Analytical Quality Assurance and Reporting of Monitoring Data for IMAP Common Indicators 13, 14, 17, 18 and 20; b) Take stock of the state of play of inter-laboratory testing and good laboratory practice related to IMAP Ecological Objectives 5 and 9; c) Analyze the proposal for the integration and aggregation rules for IMAP Ecological Objectives 5, 9 and 10 and assessment criteria for contaminants and nutrients; d) Recommend the ways and means to strengthen implementation of IMAP Pollution Cluster towards preparation of the 2023 MED Quality Status Report