AI Article Synopsis
- - The study examines the seasonal changes in microplastic (MP) presence in coastal sediments of the North Eastern Arabian Sea, finding concentrations between 4,400 to 15,300 items per kg of dry weight, primarily in the size range of 100 to 500 μm.
- - Fibers were identified as the most common type of microplastics, with polyethylene, polyester, and polyamide being the most prevalent polymers found in sediment samples.
- - The abundance of microplastics was notably higher during the monsoon season due to increased freshwater flow which introduces more microplastics from nearby areas, indicating a need for further research to fully understand sources and ecological impacts.
Article Abstract
The present study reports site-specific data on the seasonal variation in microplastic abundance and characteristics in coastal sediments along the North Eastern Arabian Sea, India. The abundance of MP in coastal sediments ranged from 4400 to 15,300 items/kg dry weight (DW), with the dominance of the size ranging between 100 and 500 μm. In the studied sediment samples, fibers were the most dominant form, followed by fragments. Ten different microplastics polymers were recorded during the study with dominance of polyethylene, polyester, polyamide and all the recorded plastic items in the sediments were denser than water, except polyethylene. The mean abundance of MP in sediments was significantly higher in the monsoon season. During this season, freshwater flow increases to the sea, which brings a higher concentration of microplastics from catchment areas. For a better insight, more time-series data and research are required to assess the source of MP pollution, understand spatial-temporal variations in MP abundance and their possible hazardous impacts on marine organisms and the environment.
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| http://dx.doi.org/10.1016/j.marpolbul.2022.114545 | DOI Listing |
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