Marine pollution bulletin最新文献

{"title":"A systematic monitoring approach to assess floating marine macro litter in Italian waters: Baseline, thresholds, good environmental status, and mitigation priorities under the EU MSFD.","authors":"A Arcangeli, E Pasanisi, E Santini, R Crosti","doi":"10.1016/j.marpolbul.2024.117477","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2024.117477","url":null,"abstract":"<p><p>The EU Marine Strategy Framework Directive (MSFD, 2008/56/EC) requires Member States to establish monitoring programs for Descriptor 10-Marine Litter, to track progress towards achieving a marine Good Environmental Status (GES). Italy conducted systematic monitoring of Floating Marine Macro Litter (FMML) in three Marine Reporting Units: Western, Central Mediterranean, and Adriatic (2018-2022, 534 surveys, 2719 km² across all seasons). This study assessed baseline values for FMML amount and composition, giving indication for tracking GES progress. Following the beach litter approach and considering the differences between coastal and offshore environment, two threshold values were identified: 14.4 items/km² (objects >2.5 cm) in coastal environments; 0.6 items/km² (objects>20 cm) in offshore. Based on mean density values (95.8 ± 6.4 items >2.5 cm/km² coastal; 20.7 ± 2 items >20 cm/km² coastal; 2.7 ± 0.18 items >20 cm/km² offshore), all sub-regions were found to be in non-GES status. Priority for mitigation measures and for the replication of the approach are given.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"212 ","pages":"117477"},"PeriodicalIF":5.3,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142950972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vertical migration characteristics of polychlorinated biphenyls (PCBs) in estuarine and coastal zones under complex environmental conditions","authors":"Rui Pan, Nan Zhang, Jiqing Li, Xiao Xiao, Hao Wu, Xianzhang Dang, Shuya Hu","doi":"10.1016/j.marpolbul.2024.117520","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2024.117520","url":null,"abstract":"As a transitional zone where rivers meet the sea, estuaries are influenced by river transport and ocean tides, resulting in complex variations in parameters such as organic matter content, pH, and sediment salinity. This paper primarily explores the vertical migration patterns of polychlorinated biphenyls (PCBs) under complex conditions, focusing on the soil sediments in the Dagu River estuary area. We designed an indoor soil column leaching experiment to investigate how soil organic matter content, pH, and salinity affect the vertical migration of PCBs in soil. The results indicate that PCBs predominantly migrate within the 0–6 cm depth range in the sediment of various organic-rich soils. In soils with low organic matter, there is higher downward migration of PCBs compared to soils with high organic matter content. Variations in organic matter significantly influence the migration behavior of different PCBs congeners, with highly chlorinated congeners showing a greater tendency for downward migration. Furthermore, both pH and salinity levels influence the migration of PCBs. Alkaline conditions enhance PCBs migration in soil, whereas acidic conditions impede it. Additionally, optimal salinity levels increase the migration depth of PCBs.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"128 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142968031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimation of macroplastic yield from river basin to coastal area: A case study of the Klang River, Malaysia","authors":"Mohd Sofiyan Sulaiman, Sabiqah Tuan Anuar, Yusof Shuaib Ibrahim, Ku Mohd Kalkausar Ku Yusof, Yuzwan Mohamad, Wan Mohd Afiq Wan Mohd Khalik, Alyza Azzura Azmi, Shahidee Zainal Abidin, Nor Salmi Abdullah, Nasehir Khan E.M. Yahya","doi":"10.1016/j.marpolbul.2025.117527","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2025.117527","url":null,"abstract":"Plastic pollution in aquatic ecosystems has become a critical global environmental challenge, threatening biodiversity, water quality, and human health. This study investigates macroplastics distribution and characterization in the highly polluted Klang River, Malaysia, and proposes a protocol to compute total macroplastic yield in the river basin. A total of 240 macroplastic items were collected over a 20-km stretch from the river mouth inland, with an average of 0.91 ± 0.80 g/item (dry weight). Scanning Electron Microscopy revealed that the macroplastics had weathered slowly in the environment, potentially breaking down into smaller microplastic particles. Biofilms and dead phytoplankton were observed on the plastic surfaces, suggesting that plastic debris may act as vectors for other pollutants. The study used SWAT modelling to simulate physical processes in the Klang River Basin and compute pollutant loads through a loading computation procedure. A macroplastic rating curve was created using river discharge, macroplastic loadings, and associate parameters to estimate plastic loading in the river. The fitted equation models macroplastic loading as a function of river discharge and width, expressed as: log(y) = 1.88216–7.36528log(x) - 4.00491log(x<ce:sup loc=\"post\">2</ce:sup>). Here, log(x) represents the ratio of river discharge to river width, while log(y) denotes macroplastic loading adjusted for sampler width and river width. Results indicated that macroplastic transport in the river system is linked to flow rates and sediment yield, which vary due to topographical factors, with an estimated macroplastics yield in the Klang River Basin of 11,600 kg/day. The findings suggest that a river-specific monitoring programs should be conducted to generate comprehensive datasets, integrating both macroplastics and microplastics abundance, which can be utilized for projecting plastic emissions from Malaysian rivers and comparing data with other river basins in the Southeast Asia.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"50 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142968030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microplastics in the benthic fish from the Canadian St. Lawrence River and Estuary: Occurrence, spatial distribution and ecological risk assessment","authors":"A. H. M. Enamul Kabir, Elisa Michon, Marc Mingelbier, Dominique Robert, Youssouf D. Soubaneh, Huixiang Xie, Zhe Lu","doi":"10.1016/j.marpolbul.2024.117509","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2024.117509","url":null,"abstract":"Microplastic contamination in the St. Lawrence River and Estuary (SLRE), Canada, poses potential risks to aquatic species. However, limited understanding of microplastic contamination in benthic fish, potentially more vulnerable than pelagic species, impedes effective risk assessment in this crucial ecosystem. This study addressed knowledge gaps by analyzing microplastics in the gastrointestinal tracts (GIT) and gills of Channel Catfish (<ce:italic>Ictalurus punctatus</ce:italic>) and Atlantic Tomcod (<ce:italic>Microgadus tomcod</ce:italic>) in the SLRE. Forty-two fish from ten stations were examined using KOH digestion, density separation, wet-peroxidation, and spectroscopy. Results indicated an average abundance of 3.0 ± 0.4 (mean ± SE) microplastic particles per individual fish. Most detected particles were small microplastics (&lt;809 μm) and fibers, with blue and transparent colors. Major polymers identified included polyethylene terephthalate and polyethylene. While catfish showed higher microplastic abundances per individual than tomcod, data based on GIT weight do not support microplastic biomagnification in this predator-prey relationship. Catfish from downstream of Québec City showed elevated levels of microplastics and more variations in their characteristics compared to average abundance found from a site located 50 km upstream. Urban activity may increase microplastic accumulation in downstream benthic fish and others. This highlights the need for further studies on the migratory capacities of fish species. Ecological risk assessment revealed medium to high-risks for the catfish stations close to the Québec City due to the prevalence of smaller microplastics &lt;809 μm and highly toxic polymers (polymethyl methacrylate, polyvinylchloride, polyurethane, acrylonitrile butadiene styrene). This study provides a baseline for monitoring plastic pollution in the SLRE fish and assessing ecological risks.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"10 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142968032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A study on the forecast of fine dust emissions in the future according to the introduction of eco-friendly ships","authors":"Jungwook Lee, Jiarong Chen, Tsz Leung Yip, Hyangsook Lee","doi":"10.1016/j.marpolbul.2024.117507","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2024.117507","url":null,"abstract":"This study analyzes the anticipated impact of the deployment of green ships on reducing air pollutant emissions. We estimated air pollutant emissions from ships in Incheon Port, South Korea, and conducted a literature review and expert interviews to analyze changes in emissions as a function of the rate at which new ships can be converted to green ships in the future. The analysis showed that the PM10 and PM2.5 emissions from ships were 40.5 tons and 37.8 tons in 2021, respectively. As a result of predicting future emissions based on the scenario of deploying green ships, we found that PM10 and PM2.5 emissions would reach 26.3 tons/year and 24.8 tons/year, respectively, in 2040. In this study, we analyzed the extent to which air pollutant emissions could be reduced through the use of green ships and the quantitative effects of new ship conversions. Findings of this study can be used as foundational data for establishing air quality management policies not only for Incheon Port and the Incheon region, but also for other port cities.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"29 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142968033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparing quantity of marine debris to California horn shark sightings and egg appearances in Redondo Beach, California, USA","authors":"Evelyn Alvarez","doi":"10.1016/j.marpolbul.2024.117499","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2024.117499","url":null,"abstract":"Marine debris such as plastic, metal, and rubber, is a significant source of anthropogenic waste pollution in oceanic waters. Debris continues to be found along Southern California's coastlines and poses serious risks to biodiversity and ecosystem health through entrapment, ingestion, and entanglement. One particular species that drops eggs in the South Bay, particularly in the Palos Verdes peninsula, is the California horn shark (<ce:italic>Heterodontus francisci</ce:italic>). In California, <ce:italic>H. francisci</ce:italic> is managed by the California Department of Fish and Wildlife under general finfish regulations. The International Union for Conservation of Nature (IUCN) has published a ‘Red List of Threatened Species’ and <ce:italic>H. francisci</ce:italic> is characterized as being ‘data deficient.’ Additionally, several studies have noted dwindling <ce:italic>H. francisci</ce:italic> populations and have indicated a need for more localized management strategies to ensure their protection. Using the citizen science app, <ce:italic>Marine Debris Tracker</ce:italic>, this study geotagged and characterized waste, and used ArcGIS to generate heat maps of marine debris, <ce:italic>H. francisci</ce:italic> sightings and egg appearances to assess relationships. These maps help to address the data gaps that exist on (1) debris found on the Redondo Beach Esplanade, (2) local beach <ce:italic>H. francisci</ce:italic> sightings, and (3) <ce:italic>H. francisci</ce:italic> egg casings in the Palos Verdes peninsula to understand potential impacts of environmental waste on <ce:italic>H. francisci</ce:italic>. With these maps, citizen scientists, conservationists, and other local stakeholders can focus their efforts on key hotspots that could potentially endanger nesting practices of the <ce:italic>H. francisci.</ce:italic> Since oceanic pollution is an international issue that threatens ecosystems and biodiversity including nesting practices, leveraging citizen science applications can be a critical tool for conservation and management strategies.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"36 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142968034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancements and challenges in microplastic detection and risk assessment: Integrating AI and standardized methods","authors":"Hailong Zhang, Qiannan Duan, Pengwei Yan, Jianchao Lee, Weidong Wu, Chi Zhou, Baoxin Zhai, Xiangyi Yang","doi":"10.1016/j.marpolbul.2025.117529","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2025.117529","url":null,"abstract":"Microplastics (MPs) pose significant threats to ecosystems and human health due to their persistence and widespread distribution. This paper provides a comprehensive review of sampling methods for MPs in aquatic environments, soils, and biological samples, assessing pre-treatment procedures like digestion and separation. It examines the application and limitations of identification techniques, including microscopic observation, spectroscopic analysis, and thermal analysis. The review highlights the potential of AI technology to enhance detection efficiency and precision. It underscores the necessity of standardized protocols for consistent sampling and detection, and the importance of systematic risk assessment methodologies for managing environmental and health risks associated with MPs. The paper concludes with recommendations for future research, emphasizing the standardization of methods, advancement of detection technologies, integration of AI, and comprehensive health risk assessments. This review will be helpful for researchers to comprehensively understand the current main detection technologies and risk assessment methods of the MP, and to accelerate the establishment of an artificial intelligence regulatory framework for MPs.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"14 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142929426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Changes of marine environments due to human activities in coastal waters of Korea","authors":"Moon-Ock Lee, Jong-Kyu Kim, Byeong-Kuk Kim","doi":"10.1016/j.marpolbul.2024.117512","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2024.117512","url":null,"abstract":"A comprehensive review of scholarly articles was conducted to examine the marine environmental changes in four representative bays in Korea. Cheonsu Bay experienced a reduction in water area to half of its original size due to the completion of dikes and related reclamation projects. Consequently, the flow environment and biota were altered, leading to increased organic pollution. Gwangyang Bay saw a reduction in water area to half as a result of reclamation projects for industrial complexes and container terminals. This led to changes in sedimentation, a deteriorating flow environment, and declining water quality, as well as the emergence of heavy metal pollution. The marine environment of Jinhae Bay improved after the 2000s; however, harmful algal blooms and hypoxic water masses still occurred in the northern and western waters. Yeongil Bay exhibited harbor oscillations similar to the natural period of Pohang New Harbor, and endocrine-disrupting substances were detected in some sediments.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"25 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142929358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the impact of microplastics on gonadal health of the spadenose shark (Scoliodon laticaudus) on the west coast of India","authors":"Haradhan Ruidas, Garima Bora, Shawn Dsouza, Kartik Shanker","doi":"10.1016/j.marpolbul.2024.117464","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2024.117464","url":null,"abstract":"Pollutants such as microplastics (MPs) are detrimental to the health of humans, animals and reduce the quality of the environment. These particles can be ingested and accumulate in marine biota through the food chain leading to adverse effects on various physiological processes. Sharks, which typically occupy higher trophic levels in the marine food chain, may exhibit the highest accumulation of MPs. However, the prevalence of MPs in sharks and their potential impact on physiology are not well understood. To address this gap, we investigated MP concentrations in the gastrointestinal tract (GI) and gonads of the spadenose shark (<ce:italic>Scoliodon laticaudus</ce:italic>) on the west coast of India. MPs were detected in all water samples, 97.9 % of the GI tract samples and 95 % of gonadal tissue samples, with gonads exhibiting the highest MP concentrations. Fibres (85 %) were the dominant type, followed by flakes (11.2 %) and films (3 %). Female gonads had a significantly higher concentration of MPs than males. However, in males, a negative correlation between MP concentration and gonadosomatic index (GSI) indicated potential physiological impacts. Raman spectroscopy identified polyethylene and polyamide polymers along with other contaminants. These findings underscore the widespread presence of MP in shark tissues and their potential impact on reproductive health.","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"21 1","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142929427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Son of a beach: Coastal development and the loss of natural beaches over time (1919 to 2018) on Okinawa Island, southern Japan.","authors":"Ryuta Nakajima, Giovanni D Masucci, Reimi Kuba, Hin Boo Wee, James Davis Reimer","doi":"10.1016/j.marpolbul.2024.117459","DOIUrl":"https://doi.org/10.1016/j.marpolbul.2024.117459","url":null,"abstract":"<p><p>The coastline of Okinawa Island, Japan, has been affected by human-made alterations for decades, often from land reclamation and coastal defense construction. Here, we use an Imperial Japanese Army map made between 1919 and 1921 to describe the composition of the Okinawan coastline approximately 100 years ago, and by overlapping this old map with a modern-day map of Okinawa (2018), we identified 131 sites where coastlines showed clear human-made alterations. For these sites, we examined what kinds of ecosystems were lost and what has replaced them. These data show losses of river mouths, tidal areas, rocky shores, natural sandy beaches, inner and outer reefs, and gains of industrial sites, ports, residential areas, agricultural areas, artificial beaches, military complexes, and vacant land. Considering the wide-scale alteration that has already occurred and the ecosystem services that coastal marine ecosystems provide, conservation of remaining natural coastlines of Okinawa Island should be given priority.</p>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"212 ","pages":"117459"},"PeriodicalIF":5.3,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142927481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}