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The Global Spread of Microplastics: Contamination in Mussels, Clams, and Crustaceans from World Markets

A market survey used digestion and microFTIR to analyze edible tissue from commercial shellfish purchased in different regions.

Updated 2026-10-22

A market survey used digestion and microFTIR to analyze edible tissue from commercial shellfish purchased in different regions.

Source details

Tamara Mutić, Jelena Mutić, Miloš Ilić, Vesna Jovanović, Jelena Aćimović, Boban Andjelković, Dragana Stanić-Vučinić, Maria Krishna de Guzman, Mirjana Andjelkovic, Mirjana Turkalj, Tanja Cirkovic Velickovic. Foods. 2024.

DOI: 10.3390/foods13233793

Findings

A market survey used digestion and microFTIR to analyze edible tissue from commercial shellfish purchased in different regions.

  • 43.68% of sampled individuals; Edible parts of commercial shellfish; 190 animals analyzed individually.
  • 0.21 ± 0.39 particles/g wet edible tissue; Clams purchased in Korea; all tested individuals, including nondetections.
  • 0.13 ± 0.20 particles/g wet edible tissue; Mussels purchased in Belgium; all tested individuals, including nondetections.
  • 10 µm reported lower analysis limit; MicroFTIR characterization of shellfish isolates; paper distinguishes image spatial resolution from reported smaller detected particles.

Methods and scope

Alkaline, dual enzymatic and peroxide digestion; whole-filter microFTIR screening with spectral matching and manual checks. Air and procedural blanks; no confirmed plastic in reported procedural blanks. Recovery and polymer integrity were tested.

What this source can support

Direct evidence about edible tissue from the sampled market lots.

Selected markets and species, not a global prevalence estimate. The main text reports a size limit but finer analytical consistency is limited; supplementary tables were not supplied separately. Purchase location is not necessarily harvest location.

Fish and seafood

Reported values and source locations

Reported valueMeasurement basisConditions and size contextOriginal document location
43.68% of sampled individualsOccurrence frequency across this sampled setEdible parts of commercial shellfish; 190 animals analyzed individually
Reported microFTIR lower size limit 10 µm; not a nanoplastic measurement
PDF p. 7 §3.2.1
0.21 ± 0.39 particles/g wet edible tissuemean ± SDClams purchased in Korea; all tested individuals, including nondetections
MicroFTIR reported size limit 10 µm
PDF p. 7 Table 2
0.13 ± 0.20 particles/g wet edible tissuemean ± SDMussels purchased in Belgium; all tested individuals, including nondetections
MicroFTIR reported size limit 10 µm
PDF p. 7 Table 2
10 µm reported lower analysis limitmethod limit stated by authors; no independently supplied size recovery validationMicroFTIR characterization of shellfish isolates; paper distinguishes image spatial resolution from reported smaller detected particles
Reported lower analysis limit 10 µm; not nanoplastics
PDF p. 5 §2.4
Source provenance

Primary PDF SHA-256: d4417412ccc4174d8fb2332c132502389d5d9a14dc2f5f0ddf710edc2924efb0

The source record identifies the scope and limits of the primary-document review. Follow the DOI or official source link for the original document; this site does not redistribute the PDF.

Cite this page

Microplastics Reference Library. The Global Spread of Microplastics: Contamination in Mussels, Clams, and Crustaceans from World Markets. Updated 2026-10-22. https://microplasticsindex.com/sources/s-d4417412ccc4

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