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Marine Plastic Pollution: Chemical Aspects and Possible Solutions
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Reviewed plastic chemistry and how UV breaks C-C bonds into persistent microplastic particles. - 61463 — Biofouling changes microplastic sinking behavior, spreading them deeper into aquatic environments than density alone predicts. - 61430 — Heavy metals and microplastics co-detected in India's Hooghly River, highest near urban sewage outlets. - 61294 — Patent and bibliometric analysis of microplastic detection/remediation technologies across marine, freshwater, and soil environments. - 59338 — Microorganisms (bacteria/fungi) can break down plastic polymers via bioremediation. - 59296 — Even remote polar regions show microplastic contamination via atmospheric and ocean transport. - 59515 — Review of microplastic sampling methods; lack of standardization hinders cross-study comparison. - 59419 — Brazil's agricultural land degradation increases vulnerability to plastic and chemical pollution. - 59563 — Technical challenges in nano/microplastic chemical characterization; no standardized methods yet. - 59534 — Algae (phycoremediation) can capture microplastics from water as a low-cost treatment option. - 60977 — Wastewater treatment plants are a major microplastic source to waterways; current filtration is inadequate. - 55504 — Pullulan biopolymer as a biodegradable alternative to microplastic-generating synthetic packaging. - 68805 — Up to 14 million tonnes of microplastics estimated on the seafloor — 35x more than ocean surface. - 70753 — Oral microplastic beads accumulate in mouse liver, spleen, kidneys, and GI tract. - 74007 — Correction to atmospheric microplastic transport study; wind carries plastics to remote mountain areas. - 56736 — Microplastics absorb DDT strongly but have weak affinity for most current-use herbicides; PVC absorbs glyphosate. - 75099 — Freshwater microplastic contamination disrupts food webs and poses direct drinking water risk. - 27198 — AI/machine learning proposed to speed microplastic identification vs. slow manual methods. - 57768 — ML model predicts microplastic polymer aging rates, improving understanding of environmental breakdown. - 16750 — Comprehensive reference book on microplastic pollution sources, behavior, and environmental fate. - 58867 — Microplastics (up to 360/kg, mostly PVC) found in peat sediments in Vietnam's Long An province. - 77752 — German water research overview including microplastics as an emerging freshwater threat.
Plastics are formed from C–C single bonds which are flexible making them easily transformable. Thus, plastics have been widely utilized by the global society. However, the C–C single bond is easily breakable by UV radiation. Eventually, plastics are...
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Plastics and microplastics have achieved near-universal distribution in marine environments from surface waters to deep-sea sediments, persisting for decades while fragmenting into increasingly smaller and more biologically available particles. The growing concentration of microplastics in oceans represents a long-term threat to marine biodiversity and the food safety of seafood consumed globally.
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Researchers examined how marine microplastics adsorb persistent organic pollutants — including PAHs, pesticides, and PCBs — finding that plastic composition and degradation state significantly influence how much chemical contamination these particles carry, which matters because marine organisms may ingest both the plastic and its toxic hitchhikers.
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Researchers reviewed the sources, distribution, and remediation strategies for microplastic pollution in marine ecosystems, tracing the escalating environmental burden from decades of unchecked plastic production. Marine microplastics are ingested by a wide range of species across trophic levels, creating bioaccumulation pathways that ultimately deliver plastic particles and their associated chemical contaminants to seafood consumed by humans.
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.
Ecological Effects of Chemical Contaminants Adsorbed to Microplastics
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Microplastics act as vectors for adsorbed chemical contaminants including pesticides, heavy metals, and persistent organic pollutants, amplifying their transport and bioavailability in aquatic and soil ecosystems. The combined exposure to plastic particles and their chemical cargo poses greater ecotoxicological risks than either contaminant class alone.
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