Anna Schwarz

ORCID: 0000-0002-4987-4310
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About
Contact & Profiles
Research Areas
  • Microplastics and Plastic Pollution
  • Recycling and Waste Management Techniques
  • biodegradable polymer synthesis and properties
  • Sustainable Supply Chain Management
  • Municipal Solid Waste Management
  • Effects and risks of endocrine disrupting chemicals
  • Marine and Offshore Engineering Studies
  • Toxic Organic Pollutants Impact
  • Environmental Impact and Sustainability
  • Sustainable Industrial Ecology

Netherlands Organisation for Applied Scientific Research
2019-2024

Radboud University Nijmegen
2024

The Ocean Cleanup
2017-2018

University of Wales
1974

Faculty of 1000 (United States)
1974

Lancaster University Ghana
1974

Ocean plastic can persist in sea surface waters, eventually accumulating remote areas of the world's oceans. Here we characterise and quantify a major ocean accumulation zone formed subtropical waters between California Hawaii: The Great Pacific Garbage Patch (GPGP). Our model, calibrated with data from multi-vessel aircraft surveys, predicted at least 79 (45-129) thousand tonnes are floating inside an area 1.6 million km

10.1038/s41598-018-22939-w article EN cc-by Scientific Reports 2018-03-12

Abstract Plastic pollution in aquatic ecosystems is an emerging environmental risk, as it may negatively impacts ecology, endangers species, and causes economic damage. Rivers are known to play a crucial role transporting land‐based plastic waste the world's oceans, but riverine also directly affected by pollution. To better quantify global transport effectively reduce sources risks, thorough understanding of origin, transport, fate, effects debris crucial. In this overview paper, we discuss...

10.1002/wat2.1398 article EN cc-by Wiley Interdisciplinary Reviews Water 2019-11-29

To ensure a circular economy for plastics, insights in the environmental impacts of recycling and optimal choices specific plastic polymers are crucial. This was obtained by determining performance 10 selected technologies with varying TRL levels, using chemical properties top 25 produced Europe. The results were collected life cycle assessment (LCA) 'matrix' model. simulate realistic challenges, case studies PE/PP foils from municipal waste ABS brominated flame retardants developed, to be...

10.1016/j.wasman.2020.12.020 article EN cc-by-nc-nd Waste Management 2021-01-09

Land-based macroplastic is considered one of the major sources marine plastic debris. However, estimations emission from rivers into oceans remain scarce and uncertain, mainly due to a severe lack standardized observations. To properly assess global fluxes, detailed information on spatiotemporal variation in river quantities composition are urgently needed. In this paper, we present new methodology characterize riverine dynamics. The proposed was applied estimate Saigon River, Vietnam....

10.3389/fmars.2018.00372 article EN cc-by Frontiers in Marine Science 2018-10-17

Knowledge on environmental plastic emission and spatial temporal accumulation is vital for the development of successful mitigation strategies risk assessments plastics. In this study, emissions both micro macro from value chain to environment were assessed a global level through mass flow analysis (MFA). All countries, 10 sectors, 8 polymers 7 compartments (terrestrial, freshwater or oceanic) are distinguished in model. The results assess loss 0.8 million tonnes (mt) microplastics 8.7 mt...

10.1016/j.scitotenv.2023.162644 article EN cc-by-nc-nd The Science of The Total Environment 2023-03-07

Here we report concentrations of pollutants in floating plastics from the North Pacific accumulation zone (NPAC). We compared chemical different types and sizes, assessed ocean plastic potential risks using sediment quality criteria, discussed implications our findings for bioaccumulation. Our results suggest that at least a fraction NPAC is not equilibrium with surrounding seawater. For instance, "hard plastic" samples had significantly higher PBDE than "nets ropes" samples, 29% them...

10.1021/acs.est.7b04682 article EN cc-by Environmental Science & Technology 2017-11-29

Although Life Cycle Impact Assessment (LCIA) methods assess a wide range of environmental impacts, ecological impacts plastic pollution are not commonly included. Here, characterization factors Polypropylene (PP), Low density polyethylene (LDPE) and Polyethylene Terephthalate (PET) microplastics were assessed. Fate was assessed through the multimedia fate model Simplebox4Plastics. Ecological effects based on species sensitivity distributions. Macroplastic included though conversion fraction....

10.1016/j.resconrec.2024.107787 article EN cc-by-nc-nd Resources Conservation and Recycling 2024-06-26

Dealing with heterogeneous plastic waste – i.e., high polymer heterogeneity, additives, and contaminants lowering greenhouse gas (GHG) emissions from production requires integrated solutions. Here, we quantified current future GHG footprints of direct chemical conversion post-consumer feedstock to olefins, a base material for plastics. The net footprint this recycling system is −0.04 kg CO2-eq./kg treated, including credits avoided virgin electricity, heat, the partial biogenic content...

10.1016/j.resconrec.2022.106582 article EN cc-by Resources Conservation and Recycling 2022-08-02

Using biobased plastics has the potential to avoid fossil resource depletion and CO2 emissions. Polylactic acid (PLA) is a fast-growing bio-based plastic made from fermented sugars. Nowadays, PLA used replace fossil-based polymers in healthcare single-use applications, such as for packaging applications. However, offers much broader application range with targeted use of combination its stereoisomers; PL(L)A PL(D)A. A variety these advanced grades can be multiple purposes durable consumer...

10.1016/j.scitotenv.2023.167020 article EN cc-by-nc-nd The Science of The Total Environment 2023-09-14

Abstract. The continued expansion of offshore wind energy raises concerns regarding the microplastics released from turbine blades due to leading edge erosion. Currently, literature lacks reliable and transparent estimates microplastic formation emissions turbines. To bridge this knowledge gap, we employed state-of-the-art models analytically evaluate release resulting blades' This was achieved by integrating measured weather data with a fatigue-based erosion model. We then applied...

10.5194/wes-2024-175 preprint EN cc-by 2024-12-19

The environmental impacts from plastic pollution are typically not included in Life Cycle Assessment (LCA). This study developed characterisation factors (CFs) for macroplastic (MaP, >5 cm) and microplastic (MiP, <5 emissions related to freshwater ecotoxicity marine ecotoxicity, which were added the ReCiPe2016 impact assessment method. fragmentation of MaP MiP, fate ecological effects MiPs accounted for. new CFs applied LCAs two consumer films, including 3 polymer types (PP, LDPE, PET)....

10.2139/ssrn.4595091 preprint EN 2023-01-01

Knowledge on plastic emissions to the environment and accumulation in time space is vital for development of successful mitigation strategies risk assessments plastics. In this study, losses human exposure are assessed a global level through yearly mass flow analysis. Countries, industrial sectors environmental compartments distinguished. Globally, 0.8 million metric tonnes (mmt) microplastics 9.5 mmt macroplastics were emitted 2017. Packaging contributed most macroplastics, tyre wear...

10.2139/ssrn.4265609 article EN SSRN Electronic Journal 2022-01-01

Using biobased plastics has the potential to avoid fossil resource depletion and CO2 emissions. Polylactic acid (PLA) is a fast-growing bio-based plastic made from fermented sugars. Nowadays, PLA used replace fossil-based polymers in low-performance, single-use applications, such as for packaging applications. However, offers much broader application range with targeted use of combination its stereoisomers; PL(L)A PL(D)A. A variety these advanced grades can be multiple purposes durable...

10.2139/ssrn.4446926 preprint EN 2023-01-01
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