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No microplastics in benthic eelpout ( Zoarces viviparus ): An urgent need for spectroscopic analyses in microplastic detection
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A study monitoring microplastic ingestion in eelpout fish found that visual identification alone falsely identified natural fibers as synthetic microplastics — spectroscopic analysis confirmed no actual microplastics were present. The findings underscore that infrared spectroscopy is essential for reliable microplastic research and that visual-only methods lead to significant overestimates.
Monitoring the ingestion of microplastics is challenging and suitable detection techniques are insufficiently used. Thus, misidentifying natural for synthetic microfibres cannot be avoided. As part of a framework to monitor the ingestion of microplastics in eelpout, this short report addresses the accurate identification of microfibres. We show that, following visual inspections, putatively synthetic microfibres are indeed of natural origin, as ascertained by spectrometric analyses. Consequently, we call for an inclusion of spectroscopic techniques in standardized microplastic monitoring schemes.
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Assessment tools for microplastics and natural fibres ingested by fish in an urbanised estuary
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Researchers quantified microplastic and natural fiber ingestion in three benthic fish species from Sydney Harbour, Australia, using gut content analysis and spectroscopic identification. They found ingested debris including synthetic and natural fibers as well as synthetic fragments across all species examined. The study demonstrates the value of combining visual analysis with chemical identification techniques like FTIR and Raman spectroscopy to accurately distinguish true microplastics from natural materials in fish gut contents.
Validation of an imaging FTIR spectroscopic method for analyzing microplastics ingestion by Finnish lake fish (Perca fluviatilis and Coregonus albula)
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Researchers developed and validated an imaging FTIR spectroscopy method for identifying microplastics ingested by Finnish lake fish, including perch and vendace. The study confirmed that wild freshwater fish are ingesting microplastics and demonstrated that standardized analytical methods are needed to improve the reliability of microplastic detection in aquatic organisms.
A critical assessment of visual identification of marine microplastic using Raman spectroscopy for analysis improvement
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Researchers critically evaluated the accuracy of visual identification versus Raman spectroscopy for identifying marine microplastics, finding that visual identification alone has significant error rates and that spectroscopic confirmation is necessary for reliable results.
Novel approach to Infrared spectroscopy and imaging for the routine characterization of microplastics in environmental samples
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This study presents an improved infrared spectroscopy and imaging approach for routine identification and characterization of microplastics in environmental samples, addressing the need for standardized analytical methods. Consistent, reliable detection methods are essential for generating comparable data across studies to accurately assess the true scale of global microplastic pollution.
A comparison of microscopic and spectroscopic identification methods for analysis of microplastics in environmental samples
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Researchers compared microscopic and spectroscopic methods for analyzing microplastics in environmental samples, evaluating accuracy and efficiency and finding that spectroscopic confirmation substantially reduces misidentification errors.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.