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61,005 resultsShowing papers similar to Assessing microplastic characteristics in bottled drinking water and air deposition samples using laser direct infrared imaging
ClearOccurrence of microplastics in commercially sold bottled water
Researchers used advanced infrared spectroscopy to measure microplastics in commercially sold bottled water in China. They found microplastic particles in the samples, with concentrations varying by brand and bottle type. The study adds to growing evidence that bottled water is a significant source of human microplastic exposure, and it estimated the amount people may be consuming daily through this route.
FTIR-Based Identification of Microplastics in Commercial Bottled Drinking Water
Scientists found tiny plastic particles in all 10 brands of bottled water they tested, using a special technique to identify the plastic types. These microplastics likely come from the plastic bottles and packaging process itself. While we don't yet know the full health effects of drinking these plastic particles, this study shows that even bottled water isn't free from plastic pollution.
Study of Analysis Method on Microplastic Identification in Bottled Drinking Water
This study tested two methods for identifying microplastics in bottled drinking water using FTIR spectroscopy and thermal analysis. Microplastics were successfully detected, adding to evidence that bottled water is a source of human microplastic ingestion.
What's in your water? A comparative analysis of micro- and nanoplastics in treated drinking water and bottled water
Researchers developed a novel method to detect both micro- and nanoplastics in drinking water using scanning electron microscopy and advanced infrared spectroscopy capable of identifying particles as small as 300 nanometers. The study found that bottled water had significantly higher concentrations of plastic particles than treated tap water, particularly for smaller micro- and nanoplastics, with polyamide, PET, and polyethylene being the most common polymers.
Rapid analytical method for characterization and quantification of microplastics in tap water using a Fourier-transform infrared microscope
Researchers developed a faster FTIR microscope method for analyzing microplastics across the whole filtration area and applied it to 42 tap water samples from five countries, finding mean concentrations of 39 particles per liter with polyester fibers and PVC fragments among the most common types.
Quantification and characterization of microplastics in coastal environments: Insights from laser direct infrared imaging
Researchers used laser direct infrared imaging to identify and quantify microplastics in sediment and seawater samples from coastal areas in Auckland, New Zealand. The study detected nine common plastic polymer types and demonstrated that this analytical technique provides efficient and accurate characterization of microplastic contamination in environmental samples.
Quantification and characterization of microplastics in surface water samples from the Northeast Atlantic Ocean using laser direct infrared imaging
Researchers quantified microplastics in Northeast Atlantic Ocean surface waters using laser direct infrared imaging, detecting particles down to 20 micrometers and revealing microplastic concentrations and polymer compositions across eight sampling locations.
Assessing microplastic contamination in soda beverages: A Multi-city, Multi-container laser Direct infrared spectroscopy study
Researchers tested soda beverages from four major U.S. cities in three container types, aluminum, glass, and plastic, using infrared spectroscopy to identify microplastics. They found that microplastic contamination patterns differed somewhat by city but showed no significant difference between container materials, suggesting that geographic factors may play a larger role than packaging in determining what ends up in beverages.
Microplastics in Spanish bottled water
Researchers analyzed 22 bottled water samples sold in Spain -- packaged in plastic, glass, and cans -- by filtering entire bottle volumes and characterizing particles via micro-FTIR, finding microplastic concentrations of 0-27 particles/L (median 6.67 particles/L) with cellulosic fibers, polyamide, and PET as the dominant polymer types.
Characterization of microplastics in water bottled in different packaging by Raman spectroscopy
Researchers detected and characterized microplastics in bottled water from different packaging types using Raman spectroscopy, confirming that plastic contamination occurs across various commercial water bottle materials.
Detection, Quantification, and Characterisation of Microplastics in Maltese Bottled Water
Researchers detected microplastics in 84% of bottled water samples from five Maltese brands at an average concentration of 35,877 ± 23,542 particles per litre, with an average particle diameter of 2.37 μm and polymers including polyurethane, polyethylene, and polymethyl methacrylate identified by Raman spectroscopy.
Identifying microplastic contamination in drinking water: analysis and evaluation using spectroscopic methods
Researchers developed analytical methods to identify and quantify microplastic contamination in drinking water, evaluating extraction efficiency and detection accuracy across different water types and plastic particle sizes. The study assessed health implications based on measured plastic loads in treated water.
Characterization of microplastics in tap water by optical photothermal infrared
Researchers used optical photothermal infrared spectroscopy to characterize microplastics in tap water, identifying particles as small as a few micrometers that conventional FTIR techniques cannot resolve. The higher detection sensitivity revealed that microplastic concentrations in drinking water are likely underestimated by standard methods.
Microplastic and nanoplastic analysis in drinking water and indoor air with Raman micro-spectroscopy
Raman micro-spectroscopy was used to detect and characterize micro- and nanoplastics in drinking water and indoor air, demonstrating the technique's value for assessing human exposure to plastic particles across multiple environments.
First assessment of occurrence, characteristics and human exposure of microplastics in bottled drinking water, Nepal
Researchers conducted the first assessment of microplastics in bottled drinking water from Nepal's mountain, hill, and Terai regions, finding microplastics in all 35 samples tested (mean 118 items/L), with fiber-shaped particles dominating at 71.76%, establishing a baseline for this developing-country context.
Characteristics of nano-plastics in bottled drinking water.
Researchers detected nanoplastics in commercially bottled drinking water using novel nanoparticle analysis techniques, finding particles in the nanometer size range in multiple brands. These findings are concerning because nanoplastics are thought to be more biologically active than larger microplastics and can more easily cross biological barriers in the body.
Occurrence and characterization of microplastics in bottled drinking water
Researchers analyzed microplastics in ten bottled water brands and found up to nine microplastic particles per liter, estimating that people who drink only bottled water may ingest over 150 microplastic particles per year — with polypropylene and polystyrene being the most common types found.
Preliminary study of microplastic in bottled drinking water
Researchers investigated microplastic contamination in five brands of bottled drinking water from South Tangerang, Indonesia, using digital microscopy and micro-FTIR analysis. All samples were contaminated, predominantly with cellulose-based fibres ranging 0.042-3.668 mm in length, while neither polypropylene from packaging nor polyethylene from bottle caps was detected.
First evidence of microplastics and their characterization in bottled drinking water from a developing country
Scientists in a developing country analyzed 10 brands of bottled drinking water and found microplastics in all samples, with concentrations varying by brand. The most common particles were polyethylene and polypropylene fragments and fibers, likely originating from the plastic bottle caps and packaging. This study adds to evidence that bottled water is a significant source of daily microplastic intake for people worldwide.
Rapid single-particle chemical imaging of nanoplastics by SRS microscopy
Using a new high-speed imaging technique, researchers detected and identified nanoplastics in bottled water at the single-particle level, finding roughly 240,000 plastic particles per liter. This is far more than previously estimated and includes particles smaller than 100 nanometers made from common plastics, suggesting our exposure to nanoplastics from bottled water may be much higher than thought.
Microplastic as an written composition in bottled water: Implications for waste management
This study characterized microplastic contamination in bottled water, identifying common polymer types and particle sizes and discussing implications for waste management and the effectiveness of current filtration in bottling facilities.
SPECTROSCOPIC EVALUATION AND HEALTH RISK ASSESSMENT OF MICROPLASTICS (MPs) IN BOTTLED WATER SAMPLES SOLD IN ABAKALIKI, NIGERIA
Researchers analyzed five brands of bottled water sold in Abakaliki, Nigeria, for microplastic contamination using infrared spectroscopy. They found microplastics in all samples, with granules being the most common shape, and estimated that children consume roughly two to five times more microplastics from bottled water than adults. The findings raise concerns about microplastic exposure from commercially available drinking water, particularly for young people.
Microplastics in Drinking Water
This review examines published evidence on microplastic presence in tap water, bottled water, and drinking water treatment plants, summarizing known pathways by which microplastics enter drinking water supplies and discussing potential human health impacts and future research priorities.
Occurrence and Potential Health Risks Due to Trihalomethanes and Microplastics in Bottled Water
Researchers found microplastics and trihalomethanes in all tested Indian bottled water brands, with microplastic counts of 20-127 particles per liter and estimated yearly microplastic intake of 153 grams per person through bottled water consumption.