Papers

61,005 results
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Article Tier 2

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

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.

2019 Environmental Monitoring and Assessment 68 citations
Article Tier 2

Making citizen science count: Best practices and challenges of citizen science projects on plastics in aquatic environments

This paper reviews best practices and challenges for citizen science projects focused on plastic pollution in aquatic environments, finding that while citizen science can effectively gather large-scale data and raise public awareness, data quality and consistency remain significant challenges.

2019 Marine Pollution Bulletin 109 citations
Article Tier 2

Microplastic Pollution Projects and Participatory Science

This paper discusses citizen science and participatory science projects for monitoring microplastic pollution, reviewing methodological approaches, data quality considerations, and the potential for large-scale pollution mapping through public engagement.

2024
Systematic Review Tier 1

Citizen Science for Monitoring Plastic Pollution from Source to Sea: A Systematic Review of Methodologies, Best Practices, and Challenges

This systematic review examines how citizen science programs track plastic pollution from land to sea. The research found that while public participation greatly expands data collection, inconsistent methods and data quality issues limit the scientific usefulness of the results. Better-designed citizen science programs could help communities monitor and respond to the microplastic pollution in their local environments.

2025 Water 2 citations
Article Tier 2

The sampling and analysis of coastal microplastic and mesoplastic: Development of a citizen science approach

This study designed, developed, and tested a citizen science approach to microplastic and mesoplastic data collection on coastal beaches to address scale and coverage limitations of traditional research methods. Results showed non-expert participants could collect comparable data to researchers, expanding monitoring capacity across undersampled coastlines.

2024 Journal of Coastal Conservation 4 citations
Article Tier 2

Citizen Science for Assessment of Microplastics on Beaches: A Case Study in Mexico

Researchers used a citizen science approach involving 26 volunteers to assess microplastic abundance and type on Mexican beaches, providing broad geographic coverage at lower cost than traditional monitoring. Participants used standardized materials and training to collect and identify microplastics, generating a representative database that also raised public awareness of coastal plastic pollution.

2025 Microplastics
Article Tier 2

The potential contribution of citizen science data in the study of coastal microplastic and mesoplastic distributions

Researchers analyzed citizen science data from the Big Microplastic Survey to assess the potential contribution of volunteer-collected observations to understanding coastal microplastic and mesoplastic distribution patterns, evaluating data quality and spatial coverage relative to conventional scientific monitoring.

2025 Environmental Monitoring and Assessment
Article Tier 2

Evaluating community science sampling for microplastics in shore sediments of large river watersheds

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.

2023 FACETS 3 citations
Article Tier 2

Can we investigate microplastic pollution with school students? Experiences from eight years of citizen science research

Researchers shared eight years of experience from the Plastic Pirates citizen science program involving over 24,000 school students and teachers in microplastic research across Germany, addressing challenges of contamination prevention, particle size, and sample processing in non-laboratory settings. The study evaluated the feasibility and scientific validity of engaging young citizen scientists in standardized riverine microplastic monitoring.

2024 Zenodo (CERN European Organization for Nuclear Research)
Article Tier 2

Can we investigate microplastic pollution with school students? Experiences from eight years of citizen science research

Researchers reported on eight years of citizen science microplastic research conducted with school students through the Plastic Pirates program, sharing methodological experiences and lessons learned from involving more than 24,000 participants across Germany and other European countries in rigorous environmental monitoring.

2024 Zenodo (CERN European Organization for Nuclear Research)
Article Tier 2

Paddle surfing for science on microplastic pollution: a successful citizen science initiative

Researchers used paddle surfers as citizen scientists to collect microplastic samples from near-shore coastal waters in the Mediterranean Sea, filling a gap in data from areas close to the coastline. The study demonstrates how citizen science can expand microplastic monitoring to locations that are difficult to access with conventional research vessels.

2021 9 citations
Article Tier 2

Citizen science in environmental and ecological sciences

This review describes how citizen science, where non-professional volunteers help collect data, is being applied in environmental and ecological research. Citizen science projects have contributed to monitoring pollution, biodiversity, and water quality across large geographic areas. The approach is relevant to microplastic research because trained volunteers can help sample and catalog microplastic contamination across many locations that professional scientists cannot cover alone.

2022 Nature Reviews Methods Primers 426 citations
Article Tier 2

Determining global distribution of microplastics by combining citizen science and in-depth case studies

This study combined citizen science sampling data with in-depth field studies to build a better global picture of microplastic distribution. The approach shows how large-scale volunteer monitoring can extend spatial coverage far beyond what professional researchers can achieve alone.

2017 Integrated Environmental Assessment and Management 45 citations
Article Tier 2

Testing citizen science as a tool for monitoring surface water microplastics

Researchers tested citizen science as a monitoring method for surface water microplastics in the Baltic Sea using a custom manta trawl aboard a sailing vessel, sampling at seven locations and finding microplastic concentrations from 0.45 to 1.98 MP/m², and evaluated the viability of integrating citizen science into large-scale MP monitoring programs.

2022 Environmental Monitoring and Assessment 15 citations
Article Tier 2

Accuracy of a Simple Microplastics Investigation Method on Sandy Beaches

This study tested a simplified citizen science method for monitoring microplastic pollution on sandy beaches, evaluating its accuracy compared to standard research methods. Reliable citizen science approaches could dramatically expand the geographic coverage of microplastic monitoring beyond what professional researchers alone can achieve.

2023 Preprints.org 1 citations
Article Tier 2

Participatory monitoring with VA'A canoes identifies key environmental factors driving microplastic distribution

Researchers used participatory monitoring with VA'A canoes to assess microplastic abundance, composition, and distribution in coastal environments, identifying key environmental, spatial, and temporal factors driving microplastic distribution while demonstrating the value of integrating water sports communities into scientific monitoring.

2025 Marine Pollution Bulletin
Systematic Review Tier 1

Citizen Science in Plastic Remediation: Strategies, Applications, and Technologies for Community Engagement

This systematic review summarizes how citizen science — everyday people collecting data and participating in cleanup efforts — is being used to fight plastic pollution. It finds that community involvement produces valuable large-scale data on microplastic distribution and helps drive local policy changes.

2026 Sustainability
Article Tier 2

Microplastic distribution and composition on two Galápagos island beaches, Ecuador: Verifying the use of citizen science derived data in long-term monitoring

Researchers validated a citizen science methodology for monitoring visible microplastic contamination on Galapagos island beaches using standardized quadrat sampling, comparing citizen-generated data with expert surveys over multiple years. The approach was found to produce reliable data for long-term monitoring while reducing costs, supporting its use in logistically challenging remote locations.

2022 Environmental Pollution 53 citations
Article Tier 2

Microplastic detectives: a citizen-science project reveals large variation in meso- and microplastic pollution along German coastlines

A citizen science project recruited volunteers to sample meso- and microplastics along German Baltic and North Sea coastlines, achieving spatial coverage far beyond what scientific teams alone could accomplish. Large variation in plastic pollution was found across sites, with some areas showing unexpectedly high concentrations linked to local sources and ocean circulation patterns.

2024 Frontiers in Environmental Science 6 citations
Article Tier 2

Abundance and composition of near surface microplastics and plastic debris in the Stockholm Archipelago, Baltic Sea

This study combined professional manta trawl sampling and citizen science transect surveys to characterize microplastic abundance and composition in the Stockholm Archipelago and Baltic Sea. The results provide baseline data on plastic contamination in Baltic surface waters and demonstrate that citizen science can complement formal monitoring efforts.

2017 Marine Pollution Bulletin 231 citations
Article Tier 2

Validating citizen science for community-driven microplastic monitoring and marine protection in Northeast Iceland's Hope Spot

Researchers ran a 5-year citizen science program (2019–2023) in Northeast Iceland's Hope Spot using low-tech sampling devices aboard whale-watching and expedition vessels to monitor meso- and microplastic pollution. MPs were present in 86% of trawl samples at an average density of 0.02 particles/m², validating citizen science as a viable tool for monitoring MP pollution in under-sampled Arctic waters.

2025 Marine Pollution Bulletin 3 citations
Article Tier 2

A watershed-scale, citizen science approach to quantifying microplastic concentration in a mixed land-use river

Trained citizen scientists collected water samples at 72 sites across the Gallatin River watershed in Montana and found microplastics at all locations, with higher concentrations in areas downstream of urban land use. The study demonstrates that citizen science can effectively generate watershed-scale microplastic data while also linking plastic pollution to land use patterns.

2018 Water Research 275 citations
Article Tier 2

Combining citizen and conventional science for microplastics monitoring in the White Sea basin (Russian Arctic)

Researchers combined citizen science volunteers with conventional scientific methods to document microplastic contamination across 13 remote locations in the White Sea basin of the Russian Arctic, finding plastic particles primarily composed of PE, PET, and PVC at average concentrations of 1.14 particles/m.

2021 Marine Pollution Bulletin 34 citations
Article Tier 2

Using citizen science to understand floating plastic debris distribution and abundance: A case study from the North Cornish coast (United Kingdom).

This citizen science study used a standardized methodology to monitor floating plastic debris off the Cornish coast of the UK, finding microplastic concentrations comparable to or higher than other European coastal regions. The study demonstrates that citizen science can generate useful, standardized data on plastic pollution in coastal waters.

2023 Marine pollution bulletin