The occurrence of microplastic contamination in littoral sediments of the Persian Gulf, Iran

Abolfazl Naji, Zinat Esmaili, Sherri A. Mason, A. Dick Vethaak

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Microplastics (MPs; <5 mm) in aquatic environments are an emerging contaminant of concern due to their possible ecological and biological consequences. This study addresses that MP quantification and morphology to assess the abundance, distribution, and polymer types in littoral surface sediments of the Persian Gulf were performed. A two-step method, with precautions taken to avoid possible airborne contamination, was applied to extract MPs from sediments collected at five sites during low tide. MPs were found in 80% of the samples. Across all sites, fiber particles were the most dominate shape (88%), followed by films (11.2%) and fragments (0.8%). There were significant differences in MP particle concentration between sampling sites (p value <0.05). The sediments with the highest numbers of MPs were from sites in the vicinity of highly populated centers and municipal effluent discharges. FTIR analysis showed that polyethylene (PE), nylon, and polyethylene terephthalate (PET) were the most abundant polymer types. More than half of the observed MPs (56%) were in the size category of 1–4.7 mm length, with the remaining particles (44%) being in the size range of 10 μm to <1 mm. Compared to literature data from other regions, intertidal sediments in the Persian Gulf cannot be characterized as a hot spot for MP pollution. The present study could, however, provide useful background information for further investigations and management policies to understand the sources, transport, and potential effects on marine life in the Persian Gulf.

Original languageEnglish (US)
Pages (from-to)20459-20468
Number of pages10
JournalEnvironmental Science and Pollution Research
Volume24
Issue number25
DOIs
StatePublished - Sep 1 2017

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Indian Ocean
Iran
Sediments
Contamination
Polymers
sediment
Polyethylene Terephthalates
polymer
Nylons
Polyethylene
Fourier Transform Infrared Spectroscopy
Tides
Polyethylene terephthalates
aquatic environment
range size
Polyethylenes
Effluents
tide
Pollution
Impurities

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

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abstract = "Microplastics (MPs; <5 mm) in aquatic environments are an emerging contaminant of concern due to their possible ecological and biological consequences. This study addresses that MP quantification and morphology to assess the abundance, distribution, and polymer types in littoral surface sediments of the Persian Gulf were performed. A two-step method, with precautions taken to avoid possible airborne contamination, was applied to extract MPs from sediments collected at five sites during low tide. MPs were found in 80{\%} of the samples. Across all sites, fiber particles were the most dominate shape (88{\%}), followed by films (11.2{\%}) and fragments (0.8{\%}). There were significant differences in MP particle concentration between sampling sites (p value <0.05). The sediments with the highest numbers of MPs were from sites in the vicinity of highly populated centers and municipal effluent discharges. FTIR analysis showed that polyethylene (PE), nylon, and polyethylene terephthalate (PET) were the most abundant polymer types. More than half of the observed MPs (56{\%}) were in the size category of 1–4.7 mm length, with the remaining particles (44{\%}) being in the size range of 10 μm to <1 mm. Compared to literature data from other regions, intertidal sediments in the Persian Gulf cannot be characterized as a hot spot for MP pollution. The present study could, however, provide useful background information for further investigations and management policies to understand the sources, transport, and potential effects on marine life in the Persian Gulf.",
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The occurrence of microplastic contamination in littoral sediments of the Persian Gulf, Iran. / Naji, Abolfazl; Esmaili, Zinat; Mason, Sherri A.; Dick Vethaak, A.

In: Environmental Science and Pollution Research, Vol. 24, No. 25, 01.09.2017, p. 20459-20468.

Research output: Contribution to journalArticle

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