We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Evaluating community science sampling for microplastics in shore sediments of large river watersheds
AI summary Read the abstract
Researchers coordinated 42 citizen science volunteers across 68 locations spanning 750 km of the Ottawa River Watershed to collect sediment samples for microplastic analysis, finding relatively low particle concentrations compared to other freshwater watersheds and demonstrating that community science effectively enables large spatial coverage while requiring strict laboratory quality control protocols.
A community science project in the Ottawa River Watershed in Canada interacted with an existing volunteer base to collect sediment from 68 locations in the watershed over approximately 750 km. Ninety-one percent of the distributed kits were returned with 42 volunteers taking part in the project. After analysis, particle concentrations were relatively low compared to previous freshwater microplastic sediment research, with contributing factors including (but not limited to) the large size of the watershed, a lower population base compared to other researched freshwater watersheds, the relative size and discharge of the Ottawa River and the large seasonal fluxes experienced in the river basin. Utilising community science for sampling large freshwater watersheds demonstrated its advantages in the research, especially spatially. However, careful consideration to research design and implementation is essential for community science projects examining microplastics in freshwater sediments. Research teams should ensure they are responsible for strict quality assurance and quality control protocols, especially in the laboratory with sample preparation and processing. Nonetheless, community science is potentially an extremely useful approach for researchers to use for microplastic sampling projects over large spatial areas.
More Papers Like This
Citizen science sampling programs as a technique for monitoring microplastic pollution: results, lessons learned and recommendations for working with volunteers for monitoring plastic pollution in freshwater ecosystems
AI summary Read the abstract
Volunteers monitored microplastic contamination along 550 km of the Ottawa River in Canada using a standardized method, finding microplastics at almost every sampling site. Citizen science programs like this show promise for scaling up microplastic monitoring at low cost.
Spatial and temporal variation of microplastics in the Ottawa River watershed with citizen science as a complementary sampling methodology
AI summary Read the abstract
Researchers measured microplastic concentrations in water and sediment across the Ottawa River watershed in Canada, finding elevated concentrations during storm and snowmelt events linked to sewage overflows. The study demonstrated that precipitation-driven spikes in microplastic loading are a significant and often underestimated source of contamination.
Spatial distribution of microplastics in a large watershed: a case study of the Ottawa River watershed
AI summary Read the abstract
A large-scale sampling survey of the Ottawa River watershed found microplastics at fairly uniform concentrations across 105 locations, with no dramatic accumulation downstream — except at boat launch sites, which showed higher levels. The results suggest that microplastic inputs are distributed across the whole watershed rather than originating from a few point sources, complicating efforts to control pollution at the river system scale.
Volunteer microplastic sampling in Puget Sound: strategies for broad inclusion, education, and research
AI summary Read the abstract
This paper describes a volunteer microplastic sampling program in Puget Sound, Washington, examining strategies for community participation and data quality in citizen science monitoring of marine plastic pollution. The program demonstrates how broad public involvement can generate spatially extensive environmental data at low cost.
Microplastic abundance and distribution in the open water and sediment of the Ottawa River, Canada, and its tributaries
AI summary Read the abstract
All water and sediment samples collected from the Ottawa River contained microplastics, with concentrations in nearshore samples higher than in mid-river trawl samples. The study provides baseline contamination data for a major Canadian river and highlights urban rivers as significant sources of microplastics flowing toward marine systems.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.