Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Sign in to save

Reevaluation of microplastics identification based on Neuston net survey data

Marine Pollution Bulletin 2021 12 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Keiichi Uchida Keiichi Uchida Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Keiichi Uchida Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Keiichi Uchida Hisayuki Arakawa, Haruka Nakano, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Keiichi Uchida Hisayuki Arakawa, Hisayuki Arakawa, Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Keiichi Uchida Keiichi Uchida Haruka Nakano, Hisayuki Arakawa, Tetsutaro Aikawa, Hisayuki Arakawa, Keiichi Uchida Keiichi Uchida Keiichi Uchida Keiichi Uchida Keiichi Uchida Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Haruka Nakano, Toshifumi Hayashi, Tetsutaro Aikawa, Toshifumi Hayashi, Hisayuki Arakawa, Keiichi Uchida Haruka Nakano, Hisayuki Arakawa, Haruka Nakano, Haruka Nakano, Hisayuki Arakawa, Toshifumi Hayashi, Toshifumi Hayashi, Hisayuki Arakawa, Haruka Nakano, Haruka Nakano, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Haruka Nakano, Haruka Nakano, Hisayuki Arakawa, Hisayuki Arakawa, Keiichi Uchida Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Toshifumi Hayashi, Toshifumi Hayashi, Hisayuki Arakawa, Hisayuki Arakawa, Keiichi Uchida Hisayuki Arakawa, Haruka Nakano, Keiichi Uchida Keiichi Uchida Keiichi Uchida

Summary

This study re-examined microplastic identification methods, finding that optical counting without chemical treatment and spectroscopy (FTIR) leads to overestimates, particularly for foam particles. Accurate identification methods are essential for producing reliable data on microplastic contamination levels.

To verify data accuracy regarding microplastics (MPs), the effects of chemical preprocessing and optical identification with Fourier transform infrared spectroscopy (FTIR) were examined using survey data. We aimed to clarify the cause of overestimation of the number concentration of MPs without FTIR by focusing on shape types. The proportion of fragments (foam) decreased (increased) after FTIR analysis. Although significant difference was found in terms of the size distribution of fragments (after FTIR > before FTIR), no such difference was found with regard to foam. These findings indicate that impurities categorized as fragments via visual confirmation, especially those measuring <1000 μm, were removed using the FTIR technique. Although previous studies recommended the use of data on MPs measuring >1000 μm, this threshold should be applied only to fragments and not to foam.

Read via DOI PubMed

Share this paper

Post Share Share Pin Email