Quantitative Assessment of Full Size Microplastics in Bottled and Tap Water Samples in Hong Kong DOI Open Access
Yuet-Tung Tse,

Sidney Man-Ngai Chan,

Eric Tung-Po Sze

et al.

International Journal of Environmental Research and Public Health, Journal Year: 2022, Volume and Issue: 19(20), P. 13432 - 13432

Published: Oct. 18, 2022

Human exposure to microplastics (MPs) through drinking water has drawn serious concern recently because of the potential adverse health effects. Although there are reports on occurrence MPs in bottled water, little is known about abundance a whole spectrum with sizes ranging from 1 µm 5 mm due restrictions conventional detection methods. Some studies using micro-Raman spectroscopy can achieve size <10 µm, however, quantitation all was extremely time consuming and only small portion (<10%) would be analyzed. The present study quantified nine brands fluorescence microscopy flow cytometry for ≥50 <50 respectively. average samples found 8–50 particles L−1, while were 1570–17,817 where mineral significantly more than distilled spring samples. modal shape at fragments, Besides, three tap obtained locally analyzed compared samples, less In addition, contamination bottle cap interference by addition salts studied, no significant difference these processes control sample found, suggesting major other manufacturing processes. Estimated daily intake (EDI) increased substantially when data included, that previously might underestimated, as large considered.

Language: Английский

Assessing the inconsistency of microplastic measurements in foods and beverages DOI Creative Commons
Emine Merve Çanga, Aoife Gowen, Junli Xu

et al.

Comprehensive Reviews in Food Science and Food Safety, Journal Year: 2024, Volume and Issue: 23(2)

Published: March 1, 2024

Abstract The widespread occurrence of microplastics (MPs) in the food chain has gained substantial recognition as a pressing concern, highlighting inevitability human exposure through ingestion foodborne MPs, coupled with release MPs from plastic packaging. However, there are notable disparities reported numbers foods and beverages, warranting thorough investigation into factors contributing to these discrepancies. Table salt is one major sources was an approximately hundred‐fold difference between reviewed studies that highest lowest number MPs. In addition, more noticeable discrepancies were discovered on released teabags. One study 15 billion cup tea single teabag, whereas another research paper found only 106.3 ± 14.6 MP/teabag after brewing. This comprehensive review focuses inconsistencies observed across examining shedding light plausible underlying variations. Furthermore, outlines areas analytical procedures require enhancement offers recommendations promote accuracy standardization future efforts, such employing methods capable confirming presence using appropriate filter sizes, considering representative sample sizes when extrapolation involved, so on. By pinpointing detection processes leading inconsistent results MP studies, this comparative analysis will contribute development reliable analytic for understanding extent microplastic contamination chain.

Language: Английский

Citations

9
Micro-nanoscale polystyrene co-exposure impacts the uptake and translocation of arsenic and boscalid by lettuce (Lactuca sativa) DOI
Trung Huu Bui, Nubia Zuverza‐Mena,

Emilie Kendrick

et al.

NanoImpact, Journal Year: 2025, Volume and Issue: 37, P. 100541 - 100541

Published: Jan. 1, 2025

Language: Английский

Citations

1
Majority of potable water microplastics are smaller than the 20 μm EU methodology limit for consumable water quality DOI Creative Commons
Oskar Hagelskjær,

Frederik Hagelskjær,

Henar Margenat

et al.

PLOS Water, Journal Year: 2025, Volume and Issue: 4(1), P. e0000250 - e0000250

Published: Jan. 15, 2025

Microplastic (MP) content in nutrition including potable water is unregulated, although MP concentrations individual brands of bottled diverge by several orders magnitude. The EU Directive 2020/2184 on consumable quality recently proposed methodological approaches to the detection MPs size range 20–5000 μm. However, fine 1–20 μm are far more likely pass human intestine into blood and organs. To evaluate impact this omission total number detected MPs, we determined down 1 ten different polyethylene terephthalate (PET) one tap sample using automated Raman microspectroscopy. We found that ranged from 19 1,154 (n/L) [0.001 0.250 μg/L], all investigated samples were stored PET containers, accounted only for a small percentage identified most samples. Importantly, 98 94% measured less than 20 10 diameter, respectively, demonstrating importance inclusion analyses regulation. current study presents protocol identify any type regardless hardness, demonstrates implementing both negative positive procedural, control measures.

Language: Английский

Citations

1
A Straightforward Py-GC/MS Methodology for Quantification of Microplastics in Tap Water DOI Creative Commons
Alexander Ccanccapa-Cartagena, Anandu Nair Gopakumar, Maryam Salehi

et al.

MethodsX, Journal Year: 2025, Volume and Issue: 14, P. 103173 - 103173

Published: Jan. 18, 2025

This study introduces a cost-effective and streamlined Pyrolysis Gas Chromatography-Mass Spectrometry (Py-GC/MS) methodology for detecting quantifying microplastics in tap water, focusing on seven common polymers. Unlike conventional approaches relying expensive pyrolyzate libraries, this method identifies pyrolysis fragments by matching their m/z values with commercially available mass spectral libraries (Wiley Registry 12th Edition/NIST 2020) confirms findings using pure polymer standards. Recovery was evaluated two approaches, demonstrating that analysis of the entire filter provided more accurate results compared to extrapolation from subsections. The exhibited excellent linearity all targeted polymers (R² > 0.996) achieved detection limits as low 0.01 µg polystyrene (PS) up 2.59 polyethylene (PE). Application water samples revealed consistent PS, ranging 2.532 2.571 ng/L morning 0.867 1.540 afternoon samples, polypropylene PE below limit quantification (

Language: Английский

Citations

1
Quantitative Assessment of Full Size Microplastics in Bottled and Tap Water Samples in Hong Kong DOI Open Access
Yuet-Tung Tse,

Sidney Man-Ngai Chan,

Eric Tung-Po Sze

et al.

International Journal of Environmental Research and Public Health, Journal Year: 2022, Volume and Issue: 19(20), P. 13432 - 13432

Published: Oct. 18, 2022

Human exposure to microplastics (MPs) through drinking water has drawn serious concern recently because of the potential adverse health effects. Although there are reports on occurrence MPs in bottled water, little is known about abundance a whole spectrum with sizes ranging from 1 µm 5 mm due restrictions conventional detection methods. Some studies using micro-Raman spectroscopy can achieve size <10 µm, however, quantitation all was extremely time consuming and only small portion (<10%) would be analyzed. The present study quantified nine brands fluorescence microscopy flow cytometry for ≥50 <50 respectively. average samples found 8–50 particles L−1, while were 1570–17,817 where mineral significantly more than distilled spring samples. modal shape at fragments, Besides, three tap obtained locally analyzed compared samples, less In addition, contamination bottle cap interference by addition salts studied, no significant difference these processes control sample found, suggesting major other manufacturing processes. Estimated daily intake (EDI) increased substantially when data included, that previously might underestimated, as large considered.

Language: Английский

Citations

33