Current status of studies on microplastics in the world's marine environments

Research Progress of the Sources, Distribution Characteristics, and Potential Risks of Microplastics in the Global Marine Environment

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Researchers reviewed 43 studies across 13 Asian countries and found suspended airborne microplastics ranging from 0.017 to 18,880 particles/m³ outdoors and up to 8,865 particles/m³ indoors, predominantly as fibers and fragments of polyethylene, polypropylene, and PET. The pervasiveness of airborne MPs across Asia—from megacities to ocean environments—demonstrates that inhalation is a significant and underappreciated human exposure route for these persistent pollutants.

Microplastics as Pollutants in the Marine Environment

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Researchers reviewed the pathways and consequences of microplastic pollution in marine environments, focusing on how post-consumer plastic waste breaks down and accumulates across ocean ecosystems. The review underscores the widespread ecological risks posed by microplastics to marine life, with potential implications for human health through seafood consumption.

Distribution of Microplastics in the Marine Environment

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Researchers reviewed the distribution of microplastics throughout the world's oceans, documenting their presence in surface water, deep sediments, and marine organisms from coastal zones to the open sea, underscoring how widespread and persistent plastic pollution has become.

Distribution of Microplastics in the Marine Environment

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Researchers reviewed the distribution of microplastics across all ocean environments — from surface waters to deep-sea sediments — showing that plastics have penetrated even the most remote marine ecosystems. The findings highlight that no part of the ocean is untouched by plastic pollution, threatening marine food chains that humans depend on.

The fate and impacts of microplastics in marine systems