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2019’s top research, by the numbers
AI summary Read the abstract
This news summary highlighted that people who drink exclusively bottled water consume an estimated 90,000 additional microplastic pieces per year compared to tap water drinkers, making it a widely cited statistic in the debate over drinking water plastic contamination.
90,000: The number of additional microplastic pieces a person would consume in a year if meeting daily water needs exclusively through bottled water (Environ. Sci. Technol. 2019, DOI: 10.1021/acs.est.9b01517) 1.8 × 1022: The half-life of xenon-124 in years, making it the longest ever directly measured (Nature 2019, DOI: 10.1038/s41586-019-1124-4) 100 µm: The length of the smallest optical spectrometer (shown), which was made from a single nanowire of cadmium sulfide and cadmium selenide (Science 2019, DOI: 10.1126/science.aax8814) >14,000: The number of carbon nanotubes used to make a microprocessor (shown) for the first nanotube computer capable of running simple programs (Nature 2019, DOI: 10.1038/s41586-019-1493-8) <5%: The percentage of lithium-ion batteries (various types shown) that are currently recycled worldwide. In 2019, scientists and consumers scrutinized recycling practices for batteries and other materials, like glass and plastic. Source: International Energy Agency. 46: The number of days a machine-learning algorithm took to identify a drug
More Papers Like This
Estimating microplastic consumption
AI summary Read the abstract
A research summary estimates that people drinking only bottled water consume an additional 90,000 microplastic particles per year compared to those who drink only tap water. The study highlights how packaging and delivery method of drinking water affects microplastic exposure.
Occurrence and characterization of microplastics in bottled drinking water
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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.
Unveiling the hidden chronic health risks of nano- and microplastics in single-use plastic water bottles: A review
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This review examines how single-use plastic water bottles release micro- and nanoplastics into drinking water, with bottled water consumers potentially ingesting up to 90,000 more plastic particles per year than tap water drinkers. The research links chronic exposure to these tiny plastic particles with respiratory diseases, reproductive issues, brain toxicity, and cancer risk, though more standardized testing methods are still needed.
Insights into human exposure to microplastics through drinking water: Current state of the science
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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.
Quantitative modeling of nanoplastic accumulation from single-use water bottles: exposure scenarios and tissue concentration estimates
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Scientists used computer models to estimate how tiny plastic particles from single-use water bottles might build up in our bodies over time. They found that people who drink a lot of bottled water could accumulate significant amounts of these nanoplastics in their tissues, with levels varying greatly depending on how much bottled water someone drinks. This research suggests we need better safety standards and detection methods to understand whether these plastic particles could harm our health.
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.