Microplastics associated contaminants from disposable paper cups and their consequence on human health
Level 5 - mechanism / opinion, no new human data
Bench-scale analytical characterization and in silico modeling without human or animal subjects
OpenAlex W4405286360 · doi:10.1016/j.lmd.2024.100029
What was done
Authors evaluated the leaching and degradation of microplastics and chemical additives from polyethylene-coated disposable paper cups exposed to hot water. Analytical techniques included UV-Vis spectroscopy, scanning electron microscopy (SEM), gas chromatography-mass spectrometry (GC-MS), Fourier-transform infrared spectroscopy (FTIR), and inductively coupled plasma optical emission spectroscopy (ICP-OES). In silico molecular docking was also used to evaluate the binding interactions of leached compounds with bacterial detoxification enzymes.
What was found
The abstract reports no numerical measurements, concentrations, particle counts, or effect sizes. Qualitatively, contact with hot liquids caused the plastic lining to degrade within minutes, leaching microplastics, ions (nitrite, chloride, fluoride), heavy metals, and organic compounds including diethyl phthalate, di-2-ethylhexyl-adipate, butylated hydroxytoluene, benzotriazole, styrene, and vinyl chloride into the water.
Why it matters
This study highlights disposable paper cups as an immediate potential source of microplastic ingestion and chemical exposure from hot beverages, supporting recommendations for reusable alternatives.
Limits
The abstract provides no sample sizes, liquid temperatures, contact durations, or quantitative concentration data. Direct human toxicological and clinical outcomes were not measured, relying instead on chemical identification and in silico predictions.
Cited by
- supports Disposable paper cups are lined with plastic that releases microplastics when heated.