18-07-2025
Scientists make surprising discoveries in fight against emerging public health threat: 'The goal now should be to make their efforts count'
Scientists make surprising discoveries in fight against emerging public health threat: 'The goal now should be to make their efforts count'
Microplastics are everywhere. They're in our oceans, our food, and even our bodies.
According to a new University of Portsmouth study highlighted how public volunteers can help combat this invisible threat.
What's happening?
Researchers at the University of Portsmouth in the U.K. published a study examining the effectiveness of different protocols to capture plastic pollution on coastlines and whether volunteers can help fill crucial data gaps, like those reported by the International Institute for Applied Systems Analysis.
The research compared three leading microplastic and mesoplastic sampling methods across southern England, including two citizen science protocols and one used by European researchers. The goal was to determine which approaches are the most accurate, efficient, and easy to use.
The findings revealed that while there's no one-size-fits-all method, public participation is a powerful tool. One technique, the Big Microplastic Survey, often detected more plastic than others, while AUSMAP was the fastest and most accessible. The EU's MSFD method provided the most accurate lab results but isn't practical without lab access or formal training.
"In a perfect world, yes, we'd all be using the same protocol," Dr. David Jones, lead author of the study, said, per the University of Portsmouth. "But the variations in coastal geomorphology around the world make this challenging. We are not going to stop volunteers from getting involved — nor should we. The goal now should be to make their efforts count, even if their methods differ."
Why are microplastics important to study?
Plastic pollution is one of the most widespread environmental issues and is increasingly becoming a human health crisis. According to the study, up to 13 million tons of plastic enter our oceans every year. Larger plastics break down into smaller pieces called microplastics and mesoplastics, which can be easily ingested by marine life and passed on to humans through the food chain.
Recent studies have detected plastic particles in human blood, lungs, and even the placenta. While we're just beginning to understand the long-term health impacts, early research suggests potential links to inflammation, hormone disruption, and increased toxicity. Better data collection leads to better chances to address the issue and protect our long-term health.
"When it comes to understanding our plastic-choked coastlines, every piece of data counts — no matter how it's collected," Dr. Michelle Hale, co-author of the study, said, per the University of Portsmouth.
What's being done about plastic pollution?
While international organizations work toward global protocols, this research highlights the role of everyday people in tracking and combating pollution. Volunteer-based methods may not be perfect, but they are valuable, especially as researchers work to bridge the gap between different tools and environments.
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The study advocates for improved systems that allow for more effective comparison of data from various methods. In the meantime, individual action still matters. Reducing reliance on single-use plastics, choosing reusable alternatives, and supporting policies to limit plastic pollution can all contribute to the solution.
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