Suchergebnisse

Understanding Plastic Pollution -- The global plastic pollution crisis - how Norway deals with the challenge -- Plastics and Human's Health -- Plastic Pollution and Health Impacts -- Plastic Debris, Microplastics, and Marine Pollution -- Current Status of Marine Litter and Microplastics contamination across India's coastal boundaries - Challenges and Management solutions.

The environmental impact of shipping on marine environment includes discharge of garbage. Plastic litter is of particular concern due to abundance, resistance to degradation and detrimental effect on marine biota. According to recently published studies, a further research is required to assess human health risk. Monitoring data indicate that despite banning plastic disposal at sea, shipping is still a source of plastic pollution. Some of the measures to combat the problem are discussed.

There is virtually nowhere on Earth today that remains untouched by plastic and ecosystems are evolving to adapt to this new context. While plastics have revolutionized our modern world, new and often unforeseen effects of plastic and its production are continually being discovered. Plastics are entangled in multiple ecological and social crises, from the plasticization of the oceans to the embeddedness of plastics in political hierarchies. The complexities surrounding the global plastic crisis require an interdisciplinary approach and the materialities of plastic demand new temporalities of thought and action. Plastic Legacies brings together scholars from the fields of marine biology, psychology, anthropology, environmental studies, Indigenous studies, and media studies to investigate and address the urgent socio-ecological challenges brought about by plastics. Contributors consider the unpredictable nature of plastics and weigh actionable solutions and mitigation processes against the ever-changing situation. Moving beyond policy changes, this volume offers a critique of neoliberal approaches to tackling the plastics crisis and explores how politics and communicative action are key to implementing social, cultural, and economic change. ; false ; Edmonton, Canada

Marine plastic pollution (MPP) is one of the most pressing issues especially for fast-growing economies in the Global South where addressing it involves both government and personal actions to achieve effective waste management policies. Alternative modelling strategies accounting for personal traits and beliefs (latent attitudes) which are unobservable characteristics are frequently overlooked in policy assessment studies. This study combines contingent valuation and latent traits questions to derive the willingness of Indonesian respondents to support MPP mitigation initiatives. One and two-step models are compared to test the sensitivity of results to modelling assumptions. Latent traits help to understand the willingness to pay (WTP) for MPP and one and two-step approaches produce comparable results. On average respondents are willing to pay £15, per person, per year to reduce MPP, or 2% of the average monthly salary. Local and international organizations should consider motivations and latent traits when designing MPP mitigation strategies.

Plastic debris represents a contemporary point of concern for the marine environment, being discharged into the ocean at an alarming scale. However, the quantity of waste that is found in the ocean is unknown. Where does this waste come from, and where does it end up are questions that scientists and researchers are still trying to accurately answer. The majority of plastic products that make their way into the ocean come mainly from human activities. Most of them land on beaches, and eventually find their way into the ocean, being washed away by waves and tides. To assess the impact of these pollutants that are found in the marine environment, it is necessary to determine the concentration of the chemicals accumulating in the biomass, and the effects they cause. There are numerous biological effects which lead to many obvious diseases in marine species. Also, these harmful effects determine changes in community structure, the modification of the habitat and local or complete extinction of many aquatic species. This review aims to lay out the present situation of the marine environment, and the effects of the pollution caused by industrialization and urbanization. Different types of remediation approaches have been discussed, such as physical remediation techniques. Besides that, the role of numerous bacteria and fungi that are capable of breaking down these chemicals that surround us, has been highlighted and point at some of the bioremediation technologies that are currently available.

The predominance of irresponsible and unsustainable plastic usage in Indonesia poses an urgent and alarming danger to the ecosystem. This paper discussed the legislative and regulatory mechanism in place in Indonesia to manage marine plastic pollution, the limitations and obstacles it faces, and the possibility of remedies being implemented to resolve Indonesia's marine plastic pollution predicament. The ecological approach, sustainable development goals, human right to a healthy environment, and sociopolitical context will all be used to advise this research. The findings demonstrate both top-down and bottom-up initiatives to marine plastic pollution law and regulations are ineffectual. If not adequately regulated, the government, political, and economic structural proclivities would most likely favor economic expansion at the expense of appropriate protection of the environment. Indonesia has to consider not just more comprehensive law and regulation to handle the complex concerns of marine plastic pollution, but it also sought to acknowledge other drivers that hamper the success of efforts to conserve the marine ecosystem. As a result, it is suggested that Indonesia initially focus on short-term measures prior to progressing on to long-term remedies, with effective cohesion across all approaches and collaboration with all involved parties.

"Plastic pollution is a growing environmental problem that is attracting increasing interest across society, from academics to the general public. A significant factor in the wide public interest in plastics is its visibility; present throughout urban and rural environments, washing up on beaches and even visible from space. However, 'invisible' microplastics and nanoplastics are also an issue. With growing plastic production and usage, plastic waste within the environment will continue to increase. This increased input along with its persistence leads to accumulation and increasing ecosystem exposure, with as-yet unknown consequences. This book brings together a collection of chapters written by world-leading experts in environmental plastic pollution inputs, fate, effects and solutions. It provides an accessible overview of the current scientific understanding, future implications and key considerations for the management and mitigation of plastic waste within the world's oceans"--

Abstract
Background
The microplastic transport of rivers is a complex spatiotemporal process; however, only limited knowledge exists on it, making its monitoring complicated. The study aimed to analyze the spatial and temporal dynamics of suspended sediments and microplastics based on measurements (1) every five days for 2 years at one site and (2) annual repetition at 29 sites along the 750-km-long Tisza River for 3 years. Water samples were taken by pumping (1 m3). Machine learning algorithms were applied to Sentinel images to analyze the spatiality of sediment transport.

Results
In the Tisza River (Central Europe), the microplastic concentration (MPCmean: 35 ± 27 item/m3) and the suspended sediment concentration (SSCmean: 60 ± 57 g/m3) showed high temporal variations. During low stages, the concentrations dropped as most transported sediments were deposited on the bottom. These sediments, including microplastics, were remobilized during flood waves, thus, higher MPC and SSC were measured. The first flood wave after a low-stage period had the highest concentrations. The increased transport capacity of the river during floods created large-scale suspended sediment and microplastic waves with increased concentrations. The mean MPC gradually increased between 2021 (19 ± 13.6 item/m3) and 2022 (23.7 ± 15.8 item/m3), and then it more than doubled (2023: 57 ± 44.8 item/m3). The tributaries acted as suspended sediment and microplastic conveyors.
On the Sentinel images, medium-scale clouds were identified, with the suspended sediment clouds being more pronounced than microplastic clouds. Fewer and longer clouds appeared during low stages, separated by clearer water bodies. During flood waves, shorter clouds were detected. The tributaries with increased suspended sediment and microplastic transport created well-distinguishable clouds in the main river.

Conclusions
Identifying suspended sediment and microplastic clouds in a river could support more precise monitoring. The hydrological background of the monitoring and the existence of these clouds should be considered, as sampling from clouds with increased SSC and MPC provides different data than sampling from the clearer water bodies between two clouds.

Graphical Abstract

While oceans are vast, they represent a fragile resource that must be protected if we want to protect our livelihoods and our planet. Marine pollution has been a topic of concern for a long time, and it has recently attracted the attention of scientists, environmentalists, economists, politicians and journalists in mainstream media, . Besides providing food, transportation routes and other resources, the oceans serve as a heat absorbing sink which offsets the extreme heating effects of climate change, but only to a limited degree. Pollution in marine environments such as the oceans, poses a threat to coastal communities by affecting the fauna and flora in the environment and the health of the nearby population. This has a disruptive effect on the health and economy of these communities. Marine Pollution: Current Status, Impacts and Remedies emphasizes the limitations of marine resources that relevant environments provide. Readers will find chapters on methods to assess pollution as well as important information for identifying, measuring, and remediating various pollutants. The book also covers some known pollutants (heavy metals, organic pollutants, microplastics) and ways to manage these substances. Other issues covered in the book include problems caused by invasive species, and the ecological problems caused by pollutants which affect local fauna and flora. This book will prove to be a useful resource for students, researchers, and policymakers, who are working in environmental science, marine conservation and allied fields.

As a society, we use more than 100,000 different industrial compounds to promote health and treat disease, to grow food and to access clean water. While technological developments have improved our lives, most of these compounds end up in our oceans where they threaten marine life and human health. The practice of ocean waste disposal has had a long history and was initially believed to have minimal associated costs. However, it is now clear that although we can use the oceans for cheap waste treatment, we do this at the expense of the other key benefits we derive from the sea, notably human food supplies as well as its aesthetic value (including opportunities for recreation and tourism). As a society, we use more than 100,000 different industrial compounds to promote health and treat disease, to grow food and to access clean water. While technological developments have improved our lives, most of these compounds end up in our oceans where they threaten marine life and human health. The practice of ocean waste disposal has had a long history and was initially believed to have minimal associated costs. However, it is now clear that although we can use the oceans for cheap waste treatment, we do this at the expense of the other key benefits we derive from the sea, notably human food supplies as well as its aesthetic value (including opportunities for recreation and tourism)