Characteristics and Seasonal Distribution of Microplastics in the Surface Waters of Southwest Coast of the Caspian Sea (Guilan Province, Iran)

被引：0
|
作者：
Majid Rasta
Mohammad Reza Rahimibashar
Arash Ershad
Hor Torabi Jafroudi
Shahryar Tagheipour Kouhbane
机构：
[1] University of Guilan,Department of Fisheries, Faculty of Natural Resources
[2] Islamic Azad University,Department of Marine Biology, Faculty of Science
[3] Lahijan branch,Department of Marine Biology, Faculty of Science
[4] University of Guilan,Young Researcher and Elite Club
[5] Islamic Azad University,undefined
[6] Lahijan Branch,undefined
来源：
Bulletin of Environmental Contamination and Toxicology | 2021年 / 107卷
关键词：
Microplastics; Surface waters; Polymers; Caspian sea;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The aim of this study was to investigate the occurrence, abundance and distribution of microplastics (MPs) in the southwest coast of the Caspian Sea in four seasons. Three stations were chosen and their surface waters were sampled between April 2019 and February 2020. The average number of MPs was 1.37 ± 0.47 items/m3 and the predominant frequency in different seasons were as follows: summer > autumn > spring > winter. MPs were dominated by fiber in shape. Black and blue were the most common colors respectively. The size was in the range of 0.3–5 mm with a mean of 1.44 ± 1.08 mm. Due to Fourier-transform infrared spectroscopy equipped with attenuated total reflection (ATR-FTIR), four different polymers were identified dominating by polypropylene. The low MP concentrations detected in the present study can be related to lower sewage inlet and more MPs sedimentation in the investigated stations.
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页码：671 / 676
页数：5
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