Microplastic is an abundant and distinct microbial habitat in an urban river

Amanda McCormick, Timothy J. Hoellein, Sherri Mason, Joseph Schluep, John J. Kelly

Research output: Contribution to journalArticle

234 Citations (Scopus)

Abstract

Recent research has documented microplastic particles (< 5 mm in diameter) in ocean habitats worldwide and in the Laurentian Great Lakes. Microplastic interacts with biota, including microorganisms, in these habitats, raising concerns about its ecological effects. Rivers may transport microplastic to marine habitats and the Great Lakes, but data on microplastic in rivers is limited. In a highly urbanized river in Chicago, Illinois, USA, we measured concentrations of microplastic that met or exceeded those measured in oceans and the Great Lakes, and we demonstrated that wastewater treatment plant effluent was a point source of microplastic. Results from high-throughput sequencing showed that bacterial assemblages colonizing microplastic within the river were less diverse and were significantly different in taxonomic composition compared to those from the water column and suspended organic matter. Several taxa that include plastic decomposing organisms and pathogens were more abundant on microplastic. These results demonstrate that microplastic in rivers are a distinct microbial habitat and may be a novel vector for the downstream transport of unique bacterial assemblages. In addition, this study suggests that urban rivers are an overlooked and potentially significant component of the global microplastic life cycle.

Original languageEnglish (US)
Pages (from-to)11863-11871
Number of pages9
JournalEnvironmental Science and Technology
Volume48
Issue number20
DOIs
StatePublished - Jan 1 2014

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Rivers
habitat
Ocean habitats
river
Lakes
lake
ocean
point source
Pathogens
biota
Wastewater treatment
Microorganisms
Biological materials
life cycle
pathogen
microorganism
water column
plastic
Life cycle
Effluents

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry

Cite this

McCormick, Amanda ; Hoellein, Timothy J. ; Mason, Sherri ; Schluep, Joseph ; Kelly, John J. / Microplastic is an abundant and distinct microbial habitat in an urban river. In: Environmental Science and Technology. 2014 ; Vol. 48, No. 20. pp. 11863-11871.
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Microplastic is an abundant and distinct microbial habitat in an urban river. / McCormick, Amanda; Hoellein, Timothy J.; Mason, Sherri; Schluep, Joseph; Kelly, John J.

In: Environmental Science and Technology, Vol. 48, No. 20, 01.01.2014, p. 11863-11871.

Research output: Contribution to journalArticle

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