We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Spatial–Temporal Growth, Distribution, and Diffusion of Marine Microplastic Research and National Plastic Policies
AI summary Read the abstract
Researchers tracked how marine microplastic research and national plastic policies have spread geographically over time, finding that both have grown exponentially — with more countries adopting plastic policies than conducting microplastic research. The study suggests that science and policy are advancing in parallel but unevenly distributed across the globe, leaving some regions with less knowledge and fewer protections.
Plastics account for 80% of material waste in the ocean. The field of marine microplastic (MP) research is relatively new and growing rapidly, in terms of published papers as well as institutions and countries conducting research. To combat plastic pollution, there is sufficient evidence that policies can lead to reduced plastic production and consumption both locally and globally. We aim to understand how marine MP research and national plastic policies have individually grown and spread. Specifically, we used scientometric and spatial diffusion methods to best explain how ideas (science and policy) clustered and spread geographically through time. We performed systematic literature searches to determine the spatial and temporal growth of marine MP publications and national plastic policies from 1900–2019. We found that more countries adopted national plastic policies than those that have conducted marine MP research. At each level of analysis (publication, institution, and country levels) within each field (research and policy), the temporal growth rate had a break point where doubling time changed significantly. Marine MP research grew exponentially, where doubling times ranged 1.1–3.7 years and the topics of inquiry increased steadily. National plastic policies also grew exponentially, where doubling times ranged 3.3–4.1 years. Different diffusion methods explain spatial growth, where marine MP research spread was best explained by a hybrid of expansion and relocation diffusion while national plastic policy spread was best explained by expansion diffusion. Both marine MP research and national plastic policies continue to spread, increasing global knowledge and mitigation efforts of plastic pollution.
More Papers Like This
Research Progress of the Sources, Distribution Characteristics, and Potential Risks of Microplastics in the Global Marine Environment
AI summary Read the abstract
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 in the Marine Environment: Sources, Distribution, Biological Effects and Socio-Economic Impacts
AI summary Read the abstract
Researchers reviewed the sources, distribution, biological effects, and socioeconomic impacts of microplastic pollution in marine environments, finding that rivers and estuaries are the primary land-to-ocean transport pathways. The review emphasizes that microplastics transfer adsorbed pollutants and additives through food webs to top predators, and that reducing plastic production and improving waste management are essential long-term solutions.
Distribution of Microplastics in the Marine Environment
AI summary Read the abstract
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
AI summary Read the abstract
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.
Plastic Debris, Microplastics, and Marine Pollution
AI summary Read the abstract
Researchers reviewed the contribution of plastic debris and microplastics to marine pollution, documenting how the persistence, widespread distribution, and inherent toxicity of plastic particles pose escalating threats to marine ecosystems as global plastic production continues to rise.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.