Beach Litter - Median number of cigarette related items normalized per 100m & to 1 survey - without UNEP_MARLIN - Other sources 2001/2020 v2021

This visualization product displays the cigarette related items abundance of marine macro-litter (> 2.5cm) per beach per year from non-MSFD monitoring surveys, research & cleaning operations without UNEP-MARLIN data.

EMODnet Chemistry included the collection of marine litter in its 3rd phase. Since the beginning of 2018, data of beach litter have been gathered and processed in the EMODnet Chemistry Marine Litter Database (MLDB). The harmonization of all the data has been the most challenging task considering the heterogeneity of the data sources, sampling protocols and reference lists used on a European scale.

Preliminary processing were necessary to harmonize all the data: - Exclusion of OSPAR 1000 protocol: in order to follow the approach of OSPAR that it is not including these data anymore in the monitoring; - Selection of surveys from non-MSFD monitoring, cleaning and research operations; - Exclusion of beaches without coordinates; - Selection of cigarette related items only. The list of selected items is attached to this metadata. This list was created using EU Marine Beach Litter Baselines and EU Threshold Value for Macro Litter on Coastlines from JRC (these two documents are attached to this metadata); - Exclusion of surveys without associated length; - Exclusion of surveys referring to the UNEP-MARLIN list: the UNEP-MARLIN protocol differs from the other types of monitoring in that cigarette butts are surveyed in a 10m square. To avoid comparing abundances from very different protocols, the choice has been made to distinguish in two maps the cigarette related items results associated with the UNEP-MARLIN list from the others; - Normalization of survey lengths to 100m & 1 survey / year: in some case, the survey length was not 100m, so in order to be able to compare the abundance of litter from different beaches a normalization is applied using this formula: Number of cigarette related items of the survey (normalized by 100 m) = Number of cigarette related items of the survey x (100 / survey length) Then, this normalized number of cigarette related items is summed to obtain the total normalized number of cigarette related items for each survey. Finally, the median abundance of cigarette related items for each beach and year is calculated from these normalized abundances of cigarette related items per survey.

Percentiles 50, 75, 95 & 99 have been calculated taking into account cigarette related items from other sources data (excluding UNEP-MARLIN protocol) for all years.

More information is available in the attached documents.

Warning: the absence of data on the map doesn't necessarily mean that they don't exist, but that no information has been entered in the Marine Litter Database for this area.

Identifier
Source https://data.blue-cloud.org/search-details?step=~012a7366a41-9818-4e19-9d24-a467e928bacd
Metadata Access https://data.blue-cloud.org/api/collections/a7366a41-9818-4e19-9d24-a467e928bacd
Provenance
Publisher Blue-Cloud Data Discovery & Access service; EMODnet Chemistry
Contributor EMODnet Chemistry; IFREMER / IDM / SISMER - Scientific Information Systems for the SEA; Ifremer / VIGIES (Information Valuation Service for Integrated Management and Monitoring); National Institute of Oceanography and Applied Geophysics - OGS, Division of Oceanography; Ifremer, VIGIES (Information Valuation Service for Integrated Management and Monitoring); IFREMER, SISMER, Scientific Information Systems for the SEA; Aarhus University,Danish Centre for Environment and Energy; Aarhus University, Department of Bioscience; Aegean Greeners; Archipelagos Institute of Marine Conservation; Asociación Vertidos Cero; Black Sea NGO Network; Department of Fisheries and Marine Research, Division of Marine Biology and Ecology; Disciplinary Centre of Marine Research and Environmental; ECAT-Environmental Center for Administration & Technology; Estonian Green Movement; European Environment Agency; eXXpedition; Foundation for Environmental Education, Latvia; Hellenic Centre for Marine Research, Institute of Oceanography; Hold Danmark Rent; Institute for Water of the Republic of Slovenia; Institute of Marine Biology (IMBK); Institute of Marine Sciences, Middle East Technical University; Institute of Oceanology, Bulgarian Academy of Sciences; International Council for the Exploration of the Sea; Isotech Ltd Environmental Research and Consultancy; Istanbul University, Institute of Marine Science and Management; Iv.Javakhishvili Tbilisi State University, Centre of Relations with UNESCO Oceanological Research Centre and GeoDNA (UNESCO); KIMO International Secretariat; Legambiente; Marine Conservation Society; Maritime Training Center for Pollution Prevention, Safety at Sea and Environmental Awareness; Mediterranean Information Office for Environment, Culture and Sustainable Development; National Institute for Marine Research and Development "Grigore Antipa"; National Institute of Marine Geology and Geoecology; Non-governmental environmental organization "Mare Nostrum"; Norwegian Environment Agency; OceanCare; Plastic Change; Portuguese Association for Marine Litter, APLM; State Oceanographic Institute; Surfers Against Sewage; Surfrider Foundation Europe; Turkish Marine Research Foundation; Ukrainian scientific center of Ecology of Sea
Publication Year 2024
OpenAccess true
Contact blue-cloud-support(at)maris.nl
Representation
Discipline Marine Science
Spatial Coverage (-53.602W, 28.394S, 41.771E, 81.686N)
Temporal Coverage Begin 2001-01-01T00:00:00Z
Temporal Coverage End 2020-04-22T00:00:00Z