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61,005 resultsShowing papers similar to Simultaneous Measurement and Compositional Analysis of Atmospheric Microplastics in Taiwan Utilizing Optical and Chemical Methods
ClearImpact of seasonal changes and environmental conditions on suspended and inhalable microplastics in urban air
Researchers measured airborne microplastics in Taipei City over a full year and found an average of about 6 particles per cubic meter of air, with higher levels during warm seasons. Fragment-shaped microplastics (polystyrene, polyethylene, polypropylene) were the most common, and their concentrations were influenced more by weather conditions like temperature, UV levels, and humidity than by human activity within the city.
Spatial and seasonal variations of atmospheric microplastics in high and low population density areas at the intersection of tropical and subtropical regions
Researchers monitored airborne microplastics over one year in both high and low population areas in Taiwan, finding microplastics present year-round in both locations. Urban areas had higher concentrations, and seasonal weather patterns affected how many microplastics were in the air. The study confirms that people are constantly breathing in microplastics regardless of where they live, though those in more populated areas face higher exposure.
First quantification and chemical characterization of atmospheric microplastics observed in Seoul, South Korea
Researchers conducted the first measurement of airborne microplastics across five outdoor sites in Seoul, South Korea, finding plastic particles everywhere from business districts to urban forests. Microplastic levels were higher in areas with more human activity and during weekdays versus weekends. Polypropylene and PET were the most common types, suggesting that everyday plastic products are a major source of airborne microplastic pollution in cities.
Temporal Distribution of Airborne Microplastics at an Urban Roadside
Researchers conducted a year-long sampling program for airborne microplastics at an urban roadside site in Zhengzhou, China, finding that traffic volume, seasonal variation, and meteorological conditions influenced the temporal distribution and polymer composition of atmospheric microplastics. Micro-Raman spectroscopy identified the dominant polymer types present in traffic-adjacent air.
Assessing the impact of marine litter hotspot on atmospheric microplastics: A study of a coastal village
Researchers measured airborne microplastic concentrations near a marine litter hotspot in a coastal village in Taiwan and found an average of 1.35 particles per cubic meter of air, with the highest levels in spring. The study provides evidence that accumulated marine litter on coastlines can serve as a source of atmospheric microplastics, potentially affecting air quality in nearby communities.
Atmospheric Microplastic Particulate Matter in an Urban Roadside: Case of Bandar Lampung City, Indonesia
Researchers sampled airborne microplastics at four locations across Bandar Lampung City, Indonesia, including industrial zones, residential neighborhoods, busy roads, and the city center. They found microplastic concentrations ranging from 0.002 to 0.02 particles per cubic meter of air, with fibrous shapes and PET plastic most common. Industrial areas had the highest total particulate levels, and northern parts of the city appear to be a likely source of airborne microplastics carried by traffic. This study adds to growing evidence that city dwellers are breathing in microplastics simply from the air around them.
Microplastics in the atmospheric of the eastern coast of China: different function areas reflecting various sources and transport
Atmospheric sampling at two sites in a Chinese coastal city found microplastics suspended in the air at both downtown and industrial locations, but with different dominant sources — lifestyle and consumer products in the city center versus industrial activity in the industrial zone. The finding that microplastics are transported through the atmosphere confirms that people in urban areas are inhaling plastic particles regardless of proximity to industrial facilities.
Airborne microplastics in the roadside and residential areas of Southern Thailand
Researchers assessed airborne microplastic contamination in roadside and residential areas across nine districts in southern Thailand. They found microplastic concentrations ranging from 0.09 to 1.54 particles per cubic meter, with particles smaller than 100 micrometers predominating in all samples. The study identified fragments and black-colored particles as the most common types, with polymer analysis revealing a diverse mix of plastic materials in the air.
Abundance of microplastics and nanoplastics in urban atmosphere
Scientists measured microplastics and nanoplastics in the air of two major Chinese cities and found concentrations reaching hundreds of thousands of particles per cubic meter. Road dust being kicked up by traffic and rainfall washing particles out of the sky were the two biggest drivers of atmospheric plastic pollution. These findings suggest that city residents are inhaling significant amounts of plastic particles every day, with potential implications for respiratory and overall health.
[Distribution, Respiratory Exposure, and Traceability of Atmospheric Microplastics in Yichang City].
Researchers sampled airborne microplastics at 16 locations across Yichang City, China, and found them in every area, with the highest concentrations settling over urban residential neighborhoods. The particles were mostly polyester fibers and came predominantly from nearby sources rather than long-range transport. Daily inhalation estimates were calculated for both adults and children, highlighting indoor and outdoor respiratory exposure as a meaningful human health concern that warrants tighter monitoring.
Characterization of atmospheric microplastics: A case study in Shenzhen City, a southern coastal area of China
Researchers characterized airborne microplastics at ten locations across Shenzhen, a major coastal city in southern China. They found an average abundance of 2.22 particles per cubic meter, with higher concentrations in areas of intense human activity and at lower altitudes. The study identified polyethylene, polypropylene, and polyester fibers as the most common types, and found that temperature and humidity influence airborne microplastic levels.
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.
Assessment of suspended atmospheric microplastics in Tianjin Binhai New Area: characterization, human health risks, and correlation with weather conditions and Air Quality Index
Researchers measured airborne microplastics in an urban area of Tianjin, China, and found them in every sample collected during autumn and winter. The particles were mostly fibers, with polyethylene terephthalate and polyethylene among the most common types, and concentrations varied with weather conditions like humidity and barometric pressure. A health risk assessment suggested that residents face measurable exposure to airborne microplastics, raising concerns about long-term inhalation risks.
Atmospheric deposition of microplastics at a western China metropolis: Relationship with underlying surface types and human exposure
Researchers measured microplastic fallout from the atmosphere in Chengdu, China, and found that the type of ground surface below -- urban, green space, or mixed -- influenced how much airborne microplastic accumulated. Using a probability model, they estimated that people are exposed to significant amounts of airborne microplastics during outdoor activities, adding to the growing evidence that we inhale these particles daily.
Airborne Microplastic Concentrations in Five Megacities of Northern and Southeast China
Researchers used uniform sampling methods to measure airborne microplastic concentrations across five major cities in northern and southeastern China. They found that indoor environments generally had higher microplastic levels than outdoor air, with fibers being the most common particle type. The study provides some of the first directly comparable data on airborne microplastic exposure across multiple cities, suggesting that people in densely populated areas face meaningful inhalation risks.
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.
Microplastic Pollution in the Ambient Air of Surabaya, Indonesia
Airborne microplastics were measured at three roadside sites in Surabaya, Indonesia, finding fibers as the dominant shape and highest concentrations at high-traffic sites, with FTIR identifying a range of polymer types. The study provides the first microplastic pollution data for Indonesian urban air and demonstrates a traffic-density relationship with atmospheric microplastic levels.
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.
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.
Characterization of Microplastics in the Atmosphere
This study measured microplastic concentrations in the atmosphere using active and passive sampling to understand airborne transport pathways. Given that inhaling airborne microplastics is an underappreciated human exposure route, characterizing atmospheric plastic levels and transport is important for estimating total human exposure.
Concentrations of Airborne Microplastics during the Dry Season at Five Locations in Bangkok Metropolitan Region, Thailand
Researchers measured airborne microplastic concentrations across five sites in Bangkok during the dry season, finding an average of 333 particles per cubic meter with the highest concentrations at dumpsite locations, providing the first airborne microplastic data for Thailand.
Quantification and characterization of airborne microplastics and their possible hazards: a case study from an urban sprawl in eastern India
Researchers measured airborne microplastic deposition in Malda City, India, and found daily deposition rates of 122 to 387 particles per square meter. The most common types were polyethylene, PVC, and PET fragments and films, mostly very small (50 to 100 micrometers). The study found that human activity and commercial areas were the main drivers of microplastic distribution, and that these airborne particles pose ecological risks when they settle into soil and water.
Characterization of airborne microplastics and health risks in high-temperature urban streets: A case study of Nanjing city
Researchers measured airborne microplastics on high-temperature streets in Nanjing, China, and found that hotter ground temperatures significantly increased the release of traffic-related microplastics. Tire wear and road markings were identified as major sources, and health risk modeling showed that daily inhalation exposure could reach concerning levels for both adults and children. The study highlights that people living in hot urban areas with heavy traffic may face higher microplastic exposure through breathing.
Characteristic of microplastics in the atmospheric fallout from Dongguan city, China: preliminary research and first evidence
Researchers characterized microplastics in atmospheric fallout collected in Dongguan City, China, finding that airborne microplastics are deposited daily and that urban areas generate significant atmospheric microplastic emissions.