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Microplastics in the Marine Environment: Sources, Distribution, Transport, Ecological and Human Health Impacts and Mitigation Strategies
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This review pulls together existing research on how tiny plastic particles, from everyday things like laundry lint and face wash, end up flowing through our drains and into the ocean, where they make their way into seafood. Eating contaminated seafood or breathing in these particles has been linked to skin issues, heart problems, digestive trouble, and breathing difficulties. The takeaway: better wastewater treatment and reducing plastic use at home aren't just good for the ocean, they're steps toward protecting your own health too.
Microplastics have emerged as a persistent and prevalent threat to human health and the marine environment due to their widespread use and poor management, including low recycling rates, inadequate waste management, improper disposal, and inadequate control of plastic leakage into the environment. Plastic pollution is transported to the marine ecosystem through both ocean-based and land-based pathways and can be fragmented into microplastics (<5 mm) and nanoplastics (<1 µm). The study explains the sources, distribution, mechanisms of degradation, and transport pathways to the marine environment. Land-based activities are recognized as the dominant source, causing approximately 70–80% of marine plastic pollution. Domestic greywater is highlighted as a significant and common source of microplastics due to the release of microbeads and synthetic fibers from different sources, such as laundry, washbasins, and personal care products (PCPs). Similarly, greywater release from maritime vessels and cruise ships significantly contributes to marine microplastic pollution. The study discusses the biotic and abiotic degradation mechanisms. The health and environmental effects of microplastics are measured across different trophic levels. Ingestion and bioaccumulation of microplastics can cause physiological and reproductive disturbances. Human exposure through seafood consumption and inhalation may result in skin infections, cardiovascular complications, gastrointestinal disorders, and respiratory problems. The mitigation and control measures include improvements in wastewater treatment, public awareness, policy regulations, and biodegradable alternatives to support sustainable protection of the marine environment.
More Papers Like This
Microplastics in Marine Ecosystems: A Serious Health Concern
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This review paper pulls together existing research showing that tiny plastic bits from ocean pollution—called microplastics—are turning up in seawater, marine life, and the seafood we eat. Because these particles can carry toxic chemicals and may build up in our bodies over time, scientists are increasingly concerned about what this means for long-term human health, even though more research is still needed to fully understand the risks.
Microplastics in Marine Ecosystems: A Serious Health Concern
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Tiny plastic bits called microplastics—smaller than a pencil eraser—have spread throughout our oceans and are now showing up in fish and seafood we eat. This review paper pulls together existing research showing these particles can carry harmful chemicals and may pose risks to both marine life and human health, though scientists are still working out exactly how much harm they cause. The takeaway: what we do with plastic waste on land doesn't stay on land—it ends up in the ocean and potentially on our dinner plates.
Microplastics and human health: Exposure pathways, toxicological impacts, and sustainable risk management
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Tiny plastic particles called microplastics are getting into our bodies through the food we eat (especially seafood), the air we breathe, and even our skin, and once inside, they may cause cell damage, inflammation, and can carry other harmful chemicals along with them. This review paper pulls together what scientists currently know about these risks and points out that we still don't fully understand the long-term health effects of repeated exposure over time. The takeaway: cutting back on plastic use and pushing for better food packaging and policies now could help protect our health before we know the full picture.
How to protect water sources from microplastic contamination?
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This research review summarizes studies showing that tiny plastic particles called microplastics are getting into our water sources from clothing, cars, cosmetics, and household wastewater. These plastic bits can carry harmful chemicals and germs that build up in fish and other sea life, which then affects humans when we eat seafood or drink contaminated water. The authors say we need global action to reduce plastic pollution to protect both the environment and human health.
Microplastics in marine environments: Occurrence, distribution and effects
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Beyond the visible litter washing up on beaches, our oceans are filled with tiny plastic fragments called microplastics that are too small to see but widespread in marine waters. This review pulls together existing research on where these particles come from, how they spread through ocean ecosystems, and how they may affect marine life, research that matters because these same particles can work their way up the food chain into the seafood we eat. While scientists are still studying the full health impact on humans, understanding how microplastics behave in the ocean is a crucial first step.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.