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20 resultsShowing papers similar to Microplastic and nanoplastic concentration in tap water in the US
ClearMicroplastic and nanoplastic concentration in tap water in the US
Researchers analyzed microplastic and nanoplastic concentrations in tap water samples across the United States, detecting particles in the majority of samples and characterizing their size distribution, polymer type, and geographic variation.
Global prevalence of microplastics in tap water systems: Abundance, characteristics, drivers and knowledge gaps
A global analysis of tap water from 34 countries found that microplastics were present in 87% of over 1,100 samples tested, with particles smaller than 50 micrometers being the most common. When researchers looked for particles as small as 1 micrometer, concentrations were more than 20 times higher than studies that only counted larger particles. This means that most people worldwide are regularly drinking microplastics in their tap water, and the true extent of exposure has likely been underestimated.
Microplastics and nanoplastics contamination in raw and treated water
Researchers analyzed 189 samples of raw, tap, and bottled drinking water for micro- and nanoplastic contamination. They found plastic particles in every sample tested, with raw water sources containing the highest concentrations and treated tap water containing the lowest, though contamination was never fully eliminated. The study suggests that current water treatment processes reduce but do not completely remove plastic particles from drinking water.
Microplastic Contamination in Drinking Water: A Review
This review summarized current research on microplastic contamination in drinking water, covering detection methods, occurrence data, and health implications. The authors found microplastics widely present in tap and bottled water worldwide and noted that conventional treatment processes remove them incompletely, raising ongoing concerns about chronic low-level human ingestion.
Polymers of micro- and nanoplastics in household tap water of Barcelona
Researchers quantified micro- and nanoplastic polymers in the 0.7-20 micrometer size range in household tap water from the public drinking water network of Barcelona, Spain, using a novel workflow designed to capture smaller particle sizes than most previous studies. The cross-sectional study found microplastics present in drinking water at concentrations relevant to human daily exposure assessment.
Occurrence and identification of microplastics in tap water from China
Researchers analyzed 38 tap water samples from cities across China and found microplastics in all of them, with concentrations averaging around 440 particles per liter. Most particles were smaller than 50 micrometers, and the dominant types were polyethylene and polypropylene fragments. The findings highlight that drinking water treatment plants face a significant challenge in addressing microplastic contamination in the water supply.
Microplastics throughout a tap water supply network
Researchers evaluated microplastic presence throughout a large tap water distribution network, detecting microplastics at multiple points from treatment plant to consumer taps and finding that concentrations increased along the distribution system, suggesting the pipe network itself as a contamination source.
Prevalence and implications of microplastics in potable water system: An update
This review summarizes current knowledge on microplastic contamination in drinking water systems worldwide, covering sources, detection methods, and potential health implications. Researchers found that microplastics are present in both tap and bottled water, with fibers and fragments being the most common types detected. The study highlights the need for standardized testing methods and regulatory limits to protect public health from microplastic exposure through drinking water.
Quantitative analysis of nanoplastics in environmental and potable waters by pyrolysis-gas chromatography–mass spectrometry
Scientists developed and validated a new method to detect and measure nine types of nanoplastics in drinking and environmental water at very low concentrations. They found nanoplastics in every water sample tested, with polyethylene, PET, polypropylene, and polystyrene being the most common at levels up to 1.17 micrograms per liter. This is one of the first studies to quantify nanoplastics in drinking water, confirming that people are regularly exposed through their tap water.
Ubiquity of Microplastics in Drinking Water: An Update on Its Assessment and Impact
This review documents the widespread presence of microplastics in drinking water worldwide — including both tap and bottled water — and examines the potential health impacts of ingesting these particles. Current evidence shows microplastics are present in essentially all drinking water supplies at levels that cause concern, though the long-term health effects remain under investigation. The review calls for improved water treatment and reduced plastic use as parallel strategies to address the problem.
Insights into human exposure to microplastics through drinking water: Current state of the science
This review analyzed 66 studies on microplastics in drinking water from 2018 to 2023 and found that tap water actually contained more microplastics on average (about 62 particles per liter) than bottled water (about 38 particles per liter). Most particles were small fragments and fibers made of common plastics like PET, polyethylene, and polypropylene. The researchers estimate that people ingest roughly 175 microplastic particles per day just from drinking water alone.
Synthetic Microplastics in UK tap and bottled water; Implications for human exposure
Researchers tested 177 tap water samples from 13 UK cities and 85 bottled water samples from 17 brands, finding microplastics in every single sample with no meaningful difference in average concentration between tap and bottled water. Infants and toddlers were estimated to ingest four times more microplastics per kilogram of body weight than adults, raising concerns given their still-developing immune and nervous systems.
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.
Microplastics in drinking water: a macro issue
This review examines the growing concern of microplastic contamination in drinking water sources, noting that microplastics are found not only in oceans but also in freshwater and tap water. The study highlights that beyond direct harm, microplastics can act as carriers for other contaminants, making their presence in drinking water a significant issue for human health.
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.
Microplastics in Drinking Water: Assessing Occurrence and Potential Risks
This review paper examines how widespread microplastics are in drinking water — from rivers and lakes to groundwater — and what health risks this contamination may pose. The authors call for urgent research into how microplastics move through water treatment systems and ultimately reach taps, emphasizing that current sampling and analytical methods are inconsistent, making it hard to compare studies or set safety thresholds. For people drinking tap or bottled water daily, understanding and regulating this exposure pathway is a pressing public health priority.
A standard analytical approach and establishing criteria for microplastic concentrations in wastewater, drinking water and tap water
This study proposes standardized methods and concentration benchmarks for measuring microplastics in wastewater, drinking water, and tap water. The researchers found that current studies use widely varying techniques, making it difficult to compare results or set safety limits. Establishing consistent measurement standards is a critical first step toward determining what levels of microplastics in drinking water may pose risks to human health.
Microplastics and nanoplastics in drinking water and beverages: occurrence and human exposure
This review examines the presence of microplastics and nanoplastics in drinking water and beverages across different countries and regions, finding significant variation in contamination levels. Differences in water treatment efficiency, pollution sources, and the amount of water people consume all influence human exposure estimates, which can vary by orders of magnitude between studies. The study highlights the need for standardized measurement methods and calls attention to the poorly understood risks posed by nanoplastics in what we drink.
Separation and identification of nanoplastics in tap water
Researchers developed a method to separate and identify nanoplastics in tap water, detecting particles as small as 58 nanometers made of common plastics like polyethylene, polystyrene, and PVC. They found nanoplastic concentrations of roughly 1.7 to 2.1 micrograms per liter in tap water samples. The study provides the first feasible approach for measuring these extremely tiny plastic particles in drinking water, highlighting a potential health concern for consumers.
Occurrence and size distribution study of microplastics in household water from different cities in continental Spain and the Canary Islands
Researchers sampled tap water from 24 locations across mainland Spain and the Canary Islands to measure microplastic contamination in household drinking water. They found an average of about 12.5 microplastic particles per cubic meter of tap water, with synthetic fibers being the most common type detected. The study provides one of the first standardized comparisons of drinking water microplastic levels across multiple cities within a single country.