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This work is part of the Natural Environment Research Council project “Reducing the impacts of plastic waste in the Eastern Pacific Ocean” (NE/V005448/1). The purpose of collecting this dataset was to obtain consistent observational data of solid waste contamination in a South American river system using a newly developed clean-up technology called the Azure System. The dataset contains information of weight (in kilograms) of different categories of anthropogenic litter collected using the Azure System, a floating barrier designed as a litter extraction tool for rivers. The system was developed by Ichthion Limited (https://ichthion.com/), who were also responsible for data collection on site. The barrier was installed at the city of Portoviejo, where litter was collected from February 2021 until December 2022 and quantities were reported weekly for each month.","distributionFormats":[{"name":"Comma-separated values (CSV)","type":"text/csv","version":"unknown"}],"distributorContacts":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"distributor","email":"info@eidc.ac.uk"}],"funding":[{"funderName":"Natural Environment Research Council","funderIdentifier":"https://ror.org/02b5d8509","awardTitle":"Reducing the impacts of plastic waste in the Eastern Pacific Ocean","awardNumber":"NE/V005448/1","awardURI":"https://gtr.ukri.org/projects?ref=NE/V005448/1","orcid":false,"ror":true},{"funderName":"Pontificia Universidad Católica del Perú ","funderIdentifier":"https://ror.org/00013q465","awardNumber":"PI0859","orcid":false,"ror":true},{"funderName":"Benioff Ocean Science Laboratory","orcid":false,"ror":false},{"funderName":"The Coca Cola Foundation","orcid":false,"ror":false}],"id":"e78e1cef-e30b-4313-8733-c03e1a7b7b2f","incomingCitationCount":0,"infoLinks":[{"url":"https://data-package.ceh.ac.uk/sd/e78e1cef-e30b-4313-8733-c03e1a7b7b2f.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"inspireThemes":[{"theme":"Hydrography","uri":"http://inspire.ec.europa.eu/theme/hy"}],"keywordsOther":[{"value":"river clean-up"},{"value":"waste management","uri":"http://www.eionet.europa.eu/gemet/concept/9092"},{"value":"watershed","uri":"http://www.eionet.europa.eu/gemet/concept/9235"},{"value":"anthropogenic","uri":"http://www.eionet.europa.eu/gemet/concept/15352"},{"value":"macroplastics"},{"value":"plastic waste","uri":"http://www.eionet.europa.eu/gemet/concept/6336"},{"value":"river pollution","uri":"http://www.eionet.europa.eu/gemet/concept/7266"}],"keywordsPlace":[{"value":"Portoviejo River"},{"value":"Ecuador"}],"keywordsTheme":[{"value":"Pollution","uri":"http://onto.nerc.ac.uk/CEHMD/topic/15"}],"licences":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}],"lineage":"Data for anthropogenic litter was originally tabulated by operators and Ichthion as weight (kilograms) by week for general litter categories describing its previous use (e.g.: plastic bottles, plastic food wrappers, plastic grocery bags, plastic straws/cutlery, metal, organic waste, glass bottle and jar, fil plastics, plastic cup, footwear, foam container, tetrapak drinks, hard plastic pieces, and others). Initial spreadsheets consisted of separated excel files for each sampling year (2021 and 2022), and within each file there were separated tabs for each month. From those initial spreadsheets, litter data was checked by Ichthion for quality control and then reorganised at the University of Exeter onto a new spreadsheet, reclassifying the types of anthropogenic litter according to OSPAR Guidelines Guideline for Monitoring Marine Litter on the Beaches in the OSPAR Maritime Area, Edition 1.0, 2010 (https://www.ospar.org/ospar-data/10-02e_beachlitter%20guideline_english%20only.pdf). Upon reclassification, data was then organised in weight of anthropogenic items per litter category per week, as seen on the provided dataset.","metadataDate":"2026-06-29T17:18:01","notGEMINI":false,"onlineResources":[{"url":"https://data-package.ceh.ac.uk/data/e78e1cef-e30b-4313-8733-c03e1a7b7b2f","name":"Download the data","description":"Download a copy of this data","function":"download","type":"OTHER"},{"url":"https://data-package.ceh.ac.uk/sd/e78e1cef-e30b-4313-8733-c03e1a7b7b2f.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"pointsOfContact":[{"familyName":"Pinheiro","givenName":"L.","organisationName":"University of Exeter","organisationIdentifier":"https://ror.org/03yghzc09","role":"pointOfContact","email":"l.pinheiro@exeter.ac.uk","nameIdentifier":"https://orcid.org/0000-0003-2064-7138","address":{"deliveryPoint":"Stocker Rd","city":"Exeter","postalCode":"EX4 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