Presence of Microplastics in Four Types of Shellfish Purchased at Fish Markets in Okayama City, Japan

Ken-ichi Yamamoto, Toshiyuki Oshiki, Hiroko Kagawa, Masayoshi Namba, Masakiyo Sakaguchi

Research output: Contribution to journalArticlepeer-review

Abstract

The worldwide microplastic pollution in our environment is a matter of great concern. Harmful effects of plastics have been reported in various types of organisms including murine animals. We examined the presence of microplastics in four types of shellfish purchased from fish markets in Okayama, Japan and served to the public: short-neck clam (Ruditapes philippinarum, asari in Japanese), hard-shell clam (Meretrix lusoria, hamaguri), brackishwater clam (Cyrenidae, shijimi), and oyster (Crassostrea gigas, kaki). Our analyses demonstrated that approx. 3 pieces of microplastics were present per single shellfish, based on the division of the total number of pieces of microplastic obtained from all 4 types of shellfish by the total number of shellfish examined. Since health problems in humans due to microplastics have not yet been confirmed, further examinations of the effects of ingested microplastics are needed.

Original languageEnglish
Pages (from-to)381-384
Number of pages4
JournalActa medica Okayama
Volume75
Issue number3
Publication statusPublished - 2021

Keywords

  • health effect
  • Japan
  • microplastics
  • pollution
  • shellfish

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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