Microplastic particles in shoreline sediments of the Southern Caspian Sea

Publish Year: 1399
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ISCAG03_055

تاریخ نمایه سازی: 2 شهریور 1399

Abstract:

The occurrence of microplastic (MP) particles in shoreline sediments from the coastal region of the southern Caspian Sea, Mazandaran province, Iran, was investigated. A total of 312 MP items were visually detected in 17 sediment samples. The mean abundance of MP particles was 18 items kg-1. The MP particles were mainly fibers, and black color dominated. The dominant size class of MP particles was between 250 and 500 μm. Polyethylene terephthalate (PET), polystyrene (PS), and nylon (NYL) were the major polymers and/or copolymers comprising MP particles in both sediment samples. The number of MP particles in sediment samples showed a general decrease from west to east in the study area. This may be reflecting the spreading of MP loading from the outlets of Sefidrud, Tonekabon, Chalus, the major rivers entering the Caspian Sea just west of the study area, and the overall decrease in the spatial distribution of touristic and fishery activity.

Authors

Mohammad Javad Nematollahi

Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran

Rolf David Vogt

Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Oslo (UiO), Oslo, Norway

Hassan Nasrollahzadeh Saravi

Caspian Sea Ecology Research Center (CSERC), Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research, Education and Extension Organization (AREEO), Sari, Iran

Farid Moore

Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran

Behnam Keshavarzi

Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran