The presence of plastic debris along shorelines is a widespread problem, and plastic debris can interact directly with marine wildlife. In northeast Brazil, the Antillean manatees are the most common marine mammals and use estuarine waters mainly as their home range. We aimed to investigate the characteristics of plastic debris on the estuarine-oceanic continuum and the accumulation density of plastic on beaches. The density of plastic debris on beaches located in transitional areas was 7-10-fold greater than that on beaches in estuarine and oceanic areas. Fragments were considered the most abundant form of plastic debris on all the beaches. Our findings could lead to improved pollution management in this marine protected area, principally due to the risks of remobilizing small plastic particles through tides and wind effects that scatter them in resting and feeding manatees areas.
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http://dx.doi.org/10.1016/j.marpolbul.2024.117062 | DOI Listing |
Am J Chin Med
December 2024
Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P. R. China.
Alzheimer's disease (AD), the predominant form of dementia, is a neurodegenerative disorder of the central nervous system (CNS) characterized by a subtle onset and a spectrum of cognitive and functional declines. The clinical manifestation of AD encompasses memory deficits, cognitive deterioration, and behavioral disturbances, culminating in a severe impairment of daily living skills. Despite its high prevalence, accounting for 60-70% of all dementia cases, there remains an absence of curative therapeutics.
View Article and Find Full Text PDFSci Total Environ
December 2024
Centro de Investigación Esquel de Montaña y Estepa Patagónica (CIEMEP; CONICET-UNPSJB), Roca 780, Esquel, Chubut CA 9200, Argentina; Facultad de Ciencias Naturales y Ciencias de la Salud, Universidad Nacional de la Patagonia San Juan Bosco, Esquel, Chubut CA 9200, Argentina. Electronic address:
Plastic pollution has garnered much more attention in marine environments, while scientific research on freshwater and terrestrial ecosystems has been relatively overlooked. Numerous studies worldwide have highlighted the presence of macroplastics (>2.5 cm) in mountain riverine environments, revealing that even these seemingly pristine ecosystems are not invulnerable to plastic contamination.
View Article and Find Full Text PDFMar Pollut Bull
December 2024
Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil. Electronic address:
Estuaries are the main pathway for the microplastics (MPs) to enter into the oceans. However, factors that drive river-sea transport of MPs are not yet fully understood. Therefore, our research investigated the influence of the tidal cycle on the abundance and characteristics of MPs in an urban estuary, through high-frequency sampling (every 2-3 h) using a plankton net (120 μm mesh size) in two seasons (rainy and dry seasons).
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
December 2024
SAS Plastic At Sea, Observatoire Océanologique de Banyuls, Banyuls-Sur-Mer, France.
Plastics are ubiquitous in the environment, causing pollution recognized as a marker of the Anthropocene era. All environments are affected, including coastal and river ecosystems, where studies have shown that plastic waste contamination is proportional to the level of urbanization. This study, to our knowledge, is the first in France to investigate the spatial and temporal distribution of litter across the Land-Sea continuum, using debris classifications based on OSPAR (Oslo-Paris Convention 1992) and EPR (Extended Producer Responsibility).
View Article and Find Full Text PDFJ Hazard Mater
December 2024
Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
Plastic pollution in aquatic environments poses significant ecological risks, particularly through released leachates. While traditional or non-biodegradable plastics (non-BPs) are well-studied, biodegradable plastics (BPs) have emerged as alternatives that are designed to degrade more rapidly within the environment. However, research on the ecological risks of the leachates from aged BPs in aquatic environments is scarce.
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