We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
The effects of storage time and sunlight on microplastic pollution in bottled mineral water
AI summary Read the abstract
Bottled mineral water was found to contain a mean of 63.9 microplastic particles per liter, with pellet forms and particles under 100 micrometers predominating. Storage under direct sunlight for extended periods increased microplastic concentrations by 2.5%, and the estimated daily intake was higher for children than adults due to relative body weight differences.
Abstract The microplastic particles (MPs) and effects of storage time and direct sunlight on the MPs in bottled mineral waters were investigated by three experiments conditions. The mean MPs concentration was 63.9 ± 38.9 MPs/L. Pellet forms, white/yellow colour and sizes < 100 μm were predominant MPs, accounted for 35.3%, 51% and 60.2% of the total MPs, respectively. Storage of bottled water under darkness and sunlight caused an increase of 1.5% and 2.5% of MPs pollution, respectively. Also, the estimated daily intake (EDI) of MPs was 2.1, 6.4 and 9.6 MPs/kg BW.day for adults, children and infants, respectively. It is concluded that high storage time and direct sunlight may lead to a greater MPs pollution in mineral water and also high human intake through drinking bottled water. Therefore, it is suggested to reduce the expiry date of the bottled mineral water and avoid sunlight contact before consumption.
More Papers Like This
Exposure to microplastics (<10 μm) associated to plastic bottles mineral water consumption: The first quantitative study
AI summary Read the abstract
Researchers conducted the first quantitative study of microplastic contamination in bottled mineral water and found that plastic bottles release significant numbers of particles smaller than 10 micrometers into the water. The release was linked to the bottle material and storage conditions. The findings suggest that drinking bottled water is a meaningful source of human microplastic exposure.
Occurrence of Microplastics in Different Brands of Bottled Water and an Assessment of Human Exposure in Detroit, Michigan
AI summary Read the abstract
Researchers tested five bottled water brands sold in Detroit, Michigan for microplastics using filtration and fluorescence microscopy. All samples contained detectable microplastic particles at levels higher than a clean water blank, with amounts varying by brand, and estimated daily intake was higher in children than adults.
Small-sized microplastics and pigmented particles in bottled mineral water
AI summary Read the abstract
Researchers tested bottled mineral water and found microplastics and pigmented particles present, suggesting that plastic packaging itself may be a source of contamination in commercially sold water.
Photodegradation-driven microparticle release from commercial plastic water bottles
AI summary Read the abstract
Researchers exposed seventy PET plastic water bottles to sunlight for ten weeks and measured the microparticles released into the water as the plastic degraded. They found that microparticle concentrations built up to 14-20 micrograms per liter within the first 30 days before plateauing, and that thinner-walled bottles with higher crystallinity released fewer particles. The study demonstrates that sunlight-driven degradation of plastic bottles is a meaningful source of microplastics in bottled drinking water.
A Comparative Study About the Amount of Microplastic in Polyethylene Terephtalate (pet) Drinking Water That Was Exposed and Not Exposed by Sun at Environmental Health Laboratory of Poltekkes Kemenkes Semarang at the Year 2020
AI summary Read the abstract
Researchers compared the amount of microplastics released from different brands and conditions of PET water bottles, finding that UV exposure and bottle age affect how many particles leach into the water. This study highlights bottled water as a direct route of microplastic ingestion for consumers.
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.