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| Created: | Jan 20, 2026 at 8:37 p.m. (UTC) | |
| Last updated: | Jan 23, 2026 at 8:01 p.m. (UTC) | |
| Citation: | See how to cite this resource | |
| Content types: | CSV Content |
| Sharing Status: | Public |
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Abstract
Trash is a pervasive form of pollution in aquatic ecosystems. A lot of work has been done on trash in the ocean, but less work on trash in streams and rivers and how they contribute to this worldwide problem. This work is focused on trash in urban stream ecosystems, where it is, and how it moves. Mark-recapture trash surveys were performed in Potash Brook, an urban stream in South Burlington, Vermont. In four reaches, data on the location of the trash and its properties were recorded along 30 m transects. Repeat surveys were conducted on at least 4 subsequent dates during summer and fall 2024, and 5 dates in 2025. The trash was only removed during the last fall sampling date each year. Residence times were calculated as days between the surveys when the trash was first seen and when it was no longer found.
Subject Keywords
Coverage
Spatial
Temporal
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Content
ReadMe.md
Trash Movement in Potash Brook
Methods
In four reaches, data on the location of the trash and its properties were recorded along 30 m transects. Repeat surveys were conducted on at least 4 subsequent dates during summer and fall 2024, and 5 dates in 2025. The trash was only removed during the last fall sampling date each year. Residence times were calculated as days between the surveys when the trash was first seen and when it was no longer found.
Analysis
Field data on the trash was collated for all sites. Residence times were calculated based on the survey dates when the trash appeared and when it was no longer found. For those without known arrival or departure dates, means of similar items was used. For items with neither date, residence times were assigned. Tires and heavy buried items were given 1000 days, other buried items were given 500, and all others were given 365 days. Discharge data was obtained from Onset HOBO water level loggers. Adjustments were made between data collection events to account for slight changes in elevation.
Files
Field data collected on the trash is located in all_trash.csv
Discharge data is contained in all_flow.csv
Data on flow between site visits is contained in all_movement.csv
Data on the number of items that arrived, departed, or stayed with flow data is contained in movement_flow.csv.
Credits
Funding Agencies
This resource was created using funding from the following sources:
| Agency Name | Award Title | Award Number |
|---|---|---|
| National Science Foundation | Geomorphic effects and distribution of anthropogenic debris in urban streams | 2319007 |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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