Estuaries as Filters for Riverine Microplastics: Simulations in a Large, Coastal-Plain Estuary DOI Creative Commons
Alexander López, Raymond G. Najjar, Marjorie A. M. Friedrichs

et al.

Frontiers in Marine Science, Journal Year: 2021, Volume and Issue: 8

Published: Aug. 26, 2021

Public awareness of microplastics and their widespread presence throughout most bodies water are increasingly documented. The accumulation in the ocean, however, appears to be far less than riverine inputs, suggesting that there is a “missing sink” plastics ocean. Estuaries have long been recognized as filters for material marine biogeochemical budgets. Here we use model estuarine microplastic transport test hypothesis Chesapeake Bay, large coastal-plain estuary eastern North America, potentially filter, or “sink,” microplastics. 1-year composite simulation, which tracks an equal number buoyant sinking 5-mm diameter particles, shows 94% beached, with only 5% exported from 1% remaining column. We evaluate robustness this finding by conducting additional simulations tributary Bay different years, particle densities, sizes, turbulent dissipation rates, shoreline characteristics. resulting fate were sensitive interannual variability over decadal (2010–2019) analysis, greater export out during high streamflow years. Particle size was found unimportant while density – specifically if not significantly influence overall mean duration Positively more mobile due being seaward branch residual circulation negatively transported lesser distance landward branch, therefore tend deposit on coastlines close river sources, may help guide sampling campaigns. Half all beach do so within 7–13 days, those leave bay 26 days. Despite distributions some modeling choices (e.g., hardening), scenarios make it estuaries serve filter

Language: Английский

Amsterdam urban water system as entry point of river plastic pollution DOI Creative Commons
Paolo Tasseron,

Finn Begemann,

Nonna Joosse

et al.

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(29), P. 73590 - 73599

Published: May 16, 2023

Accumulation of plastic litter in aquatic environments negatively impacts ecosystems and human livelihood. Urban areas are assumed to be the main source pollution these because high anthropogenic activity. Yet, drivers emissions, abundance, retention within systems subsequent transport river poorly understood. In this study, we demonstrate that urban water function as major contributors pollution, explore potential driving factors contributing dynamics. Monthly visual counting floating at six outlets Amsterdam system results an estimated 2.7 million items entering closely connected IJ annually, ranking it among most polluting measured Netherlands Europe. Subsequent analyses environmental (including rainfall, sunlight, wind speed, tidal regimes) flux showed very weak insignificant correlations (r = [Formula: see text]0.19-0.16), implying additional investigation is required. High-frequency observations various locations advanced monitoring using novel technologies could explored harmonize automate monitoring. Once type abundance well-defined with a clear origin, communication local communities stakeholders help co-develop solutions stimulate behavioral change geared reduce environments.

Language: Английский

Citations

17
Debris dams retain trash, mostly plastic, in urban streams DOI
Timothy J. Hoellein, Lisa Kim, Raúl F. Lazcano

et al.

Freshwater Science, Journal Year: 2024, Volume and Issue: 43(1), P. 94 - 106

Published: Jan. 10, 2024

Language: Английский

Citations

8
Macroplastic Fate and Transport Modeling: Freshwaters Act as Main Reservoirs DOI Creative Commons
David Mennekes, Yvette Mellink, Louise Schreyers

et al.

ACS ES&T Water, Journal Year: 2024, Volume and Issue: 4(6), P. 2470 - 2481

Published: May 16, 2024

Macroplastic fate and transport in the freshwater environment are of great concern due to potentially harmful effects macroplastic on plants, animals, humans. Here, we present a modeling approach simulate at country scale based an existing plastic release model. The model was parametrized through available monitoring data results from field experiments applied Swiss rivers lakes. We found that almost all (98%) emissions into remain within Switzerland. After exploring influences weirs, retention rivers, lakes sensitivity analysis, high variability across different catchments rivers. In 22 analyzed scenarios for continuous along each river bank (i.e., beaching), least 70% input water bodies would be retained long-term (about 200 g per km year). Across catchments, dominance "continuous retention" beaching entire length compared with "point weirs or Thus, by level first time, were able confirm concept "rivers as reservoirs" modeling.

Language: Английский

Citations

8
Transport of microplastic debris in estuaries DOI
Isabel Jalón‐Rojas, Sophie Defontaine, María Bermúdez

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 368 - 409

Published: Jan. 1, 2024

Language: Английский

Citations

7
Estuaries as Filters for Riverine Microplastics: Simulations in a Large, Coastal-Plain Estuary DOI Creative Commons
Alexander López, Raymond G. Najjar, Marjorie A. M. Friedrichs

et al.

Frontiers in Marine Science, Journal Year: 2021, Volume and Issue: 8

Published: Aug. 26, 2021

Public awareness of microplastics and their widespread presence throughout most bodies water are increasingly documented. The accumulation in the ocean, however, appears to be far less than riverine inputs, suggesting that there is a “missing sink” plastics ocean. Estuaries have long been recognized as filters for material marine biogeochemical budgets. Here we use model estuarine microplastic transport test hypothesis Chesapeake Bay, large coastal-plain estuary eastern North America, potentially filter, or “sink,” microplastics. 1-year composite simulation, which tracks an equal number buoyant sinking 5-mm diameter particles, shows 94% beached, with only 5% exported from 1% remaining column. We evaluate robustness this finding by conducting additional simulations tributary Bay different years, particle densities, sizes, turbulent dissipation rates, shoreline characteristics. resulting fate were sensitive interannual variability over decadal (2010–2019) analysis, greater export out during high streamflow years. Particle size was found unimportant while density – specifically if not significantly influence overall mean duration Positively more mobile due being seaward branch residual circulation negatively transported lesser distance landward branch, therefore tend deposit on coastlines close river sources, may help guide sampling campaigns. Half all beach do so within 7–13 days, those leave bay 26 days. Despite distributions some modeling choices (e.g., hardening), scenarios make it estuaries serve filter

Language: Английский

Citations

34