We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
20 resultsShowing papers similar to Size Distributionof Micro-/Nanoplastic Particlesand Their Chemical Speciation in the Atmosphere of Shanghai, China
ClearSize Distribution of Micro-/Nanoplastic Particles and Their Chemical Speciation in the Atmosphere of Shanghai, China
Scientists measured airborne micro- and nanoplastics in Shanghai's winter atmosphere and found that nearly 60% of the plastic mass consisted of very fine particles under 3.2 micrometers, small enough to penetrate deep into the lungs. Polyethylene (the most common plastic) made up 40% of airborne plastics, and modeling showed that nanoscale particles accumulate more in the deep lung than in the upper airways, raising concerns about long-term respiratory health effects.
Physical and Chemical Characterisation of Nanoplastic Aerosol
Researchers physically and chemically characterized nanoplastic aerosol particles to better understand their atmospheric behavior, finding that particle size and surface chemistry influence their capacity for long-range atmospheric transport and deposition in remote environments.
Characterization of the Morphological and Chemical Profile of Different Families of Microplastics in Samples of Breathable Air
Researchers characterized the morphological and chemical profiles of airborne microplastics collected from breathable air samples, finding diverse polymer types and particle shapes and examining how these particles are transported through the atmosphere to the air people breathe.
Insight into the size-resolved markers and eco-health significance of microplastics from typical sources in northwest China
Researchers characterized airborne microplastics and plasticizers emitted from five common sources in northwest China—plastic burning, fruit bag burning, road traffic, agricultural film, and livestock breeding—finding source-specific polymer and chemical profiles in PM2.5 and PM10 fractions.
In situ chemical characterization of airborne nanoplastic particles by aerosol mass spectrometry
Researchers used aerosol mass spectrometry to chemically characterize airborne nanoplastic particles in real time in urban air. They detected multiple polymer types including polyethylene and polystyrene at concentrations that varied with location and weather conditions. This approach enables in situ monitoring of atmospheric nanoplastics without sample collection, advancing understanding of human inhalation exposure.
Micro/nanoplastics in the Shenyang city atmosphere: Distribution and sources
Researchers measured micro- and nanoplastics in airborne particulate matter in Shenyang, China, and found plastic particles in every sample tested, with concentrations averaging 7.62 micrograms per cubic meter and making up about 12% of fine particulate matter. Since these tiny airborne plastics can be inhaled deep into the lungs, they represent a direct route of human exposure that may contribute to respiratory and cardiovascular disease.
A comprehensive review of micro- and nano-plastics in the atmosphere: Occurrence, fate, toxicity, and strategies for risk reduction.
This review examines a decade of research on micro- and nano-plastics (MNPs) in the atmosphere, covering their occurrence in outdoor and indoor air, toxicological effects on human health, and strategies to reduce exposure risk from inhalation of airborne plastic particles.
Plastic burning: An important global source of atmospheric nanoplastic particles
Researchers conducted smoldering laboratory experiments with PVC, PP, LDPE, PET, and PS plastics and used aerosol mass spectrometry to characterise the physical and chemical properties of nanoplastic particles emitted, finding that plastic burning generates large quantities of nanoplastics and thermo-oxidation products that represent a significant but poorly quantified global source of atmospheric nano-sized plastic particles.
Comparative study on physicochemical characteristics of atmospheric microplastics in winter in inland and coastal megacities: A case of Beijing and Shanghai, China
Researchers compared airborne microplastic pollution during winter in Beijing, an inland city, and Shanghai, a coastal city in China. They found notable differences in the shapes, sizes, and polymer types of microplastics between the two cities, reflecting their distinct urban and industrial environments. The study provides evidence that local geography and economic activity significantly influence the characteristics of atmospheric microplastic contamination.
Fine micro- and nanoplastics particles (PM2.5) in urban air and their relation to polycyclic aromatic hydrocarbons
Researchers measured ultrafine micro- and nanoplastics in urban air at the individual polymer level for the first time, finding correlations between airborne plastic particle concentrations and polycyclic aromatic hydrocarbons, suggesting plastics act as carriers for toxic compounds.
Microplastics and nanoplastics in the air: a review
This review examines the occurrence, sources, physicochemical characteristics, and sampling and analytical methods for microplastics and nanoplastics in atmospheric air across urban, industrial, coastal, and remote environments. The authors find that fibers and fragments are the dominant atmospheric microplastic forms, that no standardized sampling methods currently exist, and that both passive and active collection approaches are used across the literature with limited comparability.
Airborne Micro- and Nanoplastics: Source Implications from Particulate Matter Composition
Researchers simultaneously measured airborne micro- and nanoplastics (AMNPs) and particulate matter (PM) across three sites in Japan in different seasons, identifying shared and distinct sources. AMNPs co-occurred with combustion-related PM components, providing evidence that airborne plastics partly originate from the same sources as fine particulate air pollution.
Current research trends on micro- and nano-plastics as an emerging threat to global environment: A review.
This review summarizes the current knowledge on micro- and nanoplastics as emerging global pollutants, covering their distribution across terrestrial, aquatic, and atmospheric environments, their persistence, and the health risks from their chemical additives. It identifies key research gaps in understanding how MNPs move between environmental compartments and accumulate in living organisms.
Insight into the size-resolved markers and eco-health significance of microplastics from typical sources in northwest China
Researchers characterized atmospheric microplastics emitted from five source types — plastic burning, fruit bag burning, road traffic, agricultural film, and livestock breeding — in northwest China's Guanzhong Plain, finding distinct polymer and plasticizer profiles for each source. Plastic burning produced the highest diversity of polymer types, providing source-specific fingerprints useful for pollution management.
An Atmospheric Chemistry Perspective on Airborne Micro- and Nanoplastic Particles
This perspective paper highlights that airborne micro- and nanoplastics are an understudied form of air pollution that undergoes chemical changes in the atmosphere, potentially making the particles more harmful when inhaled. The authors call for atmospheric scientists and microplastic researchers to work together to better understand health risks from breathing in these particles.
The Current Status of Atmospheric Micro/Nanoplastics Research: Characterization, Analytical Methods, Fate, and Human Health Risk
This review synthesizes current knowledge on atmospheric micro- and nanoplastics, covering their characterization, analytical methods, environmental fate, and human health risks while highlighting the need for standardized sampling protocols to enable cross-study comparisons.
Micro- and nano-plastics (MNPs) in urban air: polymer composition, interactions and inhalation risk
Researchers characterized airborne micro- and nanoplastics in urban air using pyrolysis gas chromatography-mass spectrometry on size-fractionated aerosol samples. The study found total concentrations averaging 0.6 micrograms per cubic meter, with tire wear particles as a dominant source, highlighting an underestimated threat to urban air quality and human respiratory health.
Morphology and hygroscopicity of nanoplastics in sea spray
Researchers characterized the morphology, surface composition, and hygroscopicity of nanoplastics in sea spray aerosol, revealing how these particles mix internally and externally with marine organic matter and sea salt in the atmosphere.
Characteristics, sources and potential ecological risk of atmospheric microplastics in Lhasa city
Researchers characterized atmospheric microplastics collected at a monitoring site, identifying their sources, size distribution, polymer composition, and potential ecological risks from aerial deposition to terrestrial and aquatic ecosystems.
Plastic breath: Quantification of microplastics and polymer additives in airborne particles
Researchers quantified microplastics and polymer additives in airborne samples to assess inhalation exposure, finding synthetic particles across multiple size fractions in outdoor air. The study highlights airborne microplastics as a significant and often underestimated route of human plastic exposure.