We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Analysis of microplastics in table salt by FT-IR microscopy
Summary
This Japanese-language study used FT-IR microscopy to detect microplastics in three brands of Japanese sea salt, finding polypropylene and polyethylene particles above 20 micrometers in all samples. The study demonstrates that sea salt produced from different coastal regions already contains microplastics, representing a direct dietary exposure pathway.
本研究では, 国内の異なる海域で採取し, 製造された3種類 (沖縄県産, 伊豆大島産, 徳島県産) の国産食塩に含まれる大きさが20 µm以上のMPの存在について, 顕微FT-IRを用いた分析を行った. その結果, すべての食塩にPPおよびPEが存在していた. ほかにも, 4種類のMPが確認され, FT-IRでの検出が困難であった微小なMPが食塩中に存在することを明らかにした. また, ほとんどのMPは粒子状であり, 大きさは29–459µmと幅広く存在していた.
Sign in to start a discussion.
More Papers Like This
Detection of Microplastic in Sun-Dried Salt using Spectroscopic Technique
Researchers used spectroscopic techniques to detect microplastics in sun-dried sea salt from South Korea. Microplastics were found in the salt samples, confirming that sea salt produced from ocean water is a pathway through which humans can ingest plastic particles through everyday food consumption.
Identification and quantification of microplastics in table sea salts using micro-NIR imaging methods
Near-infrared imaging was used to detect and count microplastics in table sea salt samples, providing a faster and more accurate method than visual sorting. Sea salt is a well-documented source of human microplastic ingestion, and better detection methods help quantify this exposure.
Identification and quantification of common microplastics in table salts by a multi-technique-based analytical method
Researchers developed a multi-technique analytical method combining microscope-FTIR and pyrolysis-GC/MS to identify and quantify microplastics in table salts, providing 3D information on polymer type, morphology, and chemical composition of food-grade salt contaminants.
Microplastic contamination of table salts from Taiwan, including a global review
Researchers analyzed table salt products sold in Taiwan for microplastic contamination and detected an average of nearly 10 microplastic particles per kilogram of salt. Polypropylene and polyethylene were the most commonly identified polymer types. The study includes a global comparison showing that microplastic contamination of table salt is a widespread phenomenon, representing a consistent low-level dietary exposure pathway for consumers.
An Integrated Assessment of Microplastic Pollution in Coastal Surface Water and Sediment of Japan
Researchers conducted a comprehensive survey of microplastic pollution in surface water and sediment at 15 coastal locations across Japan, from Hokkaido to Okinawa. They extracted over 53,000 suspected microplastic particles and identified the most common polymers using FTIR spectroscopy. The study provides an integrated baseline dataset for understanding the extent and distribution of microplastic contamination along Japanese coastlines.