Gonçalves Geslaine R L, Koomson Albert, Aggrey-Fynn Joseph, Nyarko Benjamin Kofi, Narayanaswamy Bhavani E
The Scottish Association for Marine Science (SAMS), Oban, Argyll, Scotland PA37 1QA, UK.
Department of Fisheries and Aquatic Sciences, University of Cape Coast, Cape Coast, Ghana.
Mar Pollut Bull. 2025 Feb;211:117361. doi: 10.1016/j.marpolbul.2024.117361. Epub 2024 Dec 3.
Mangroves are key providers of crucial ecological services. This study's aim is to investigate the levels of microplastic (MP) contamination in mangroves from Ghana's Western and Central regions. A total of 1303 particles were analysed from sediment and water samples, 65 % comprising MPs. West and Central regions had notable differences in MPs abundance. Sediment had the highest number of MPs (703 MPs), with concentrations ranging from 0.01 to 2.23 MPs/g·dw, whilst concentrations in water ranged from 0.2 to 3.75 MPs/l. Fibre shapes were the most abundant MP (67 %) followed by fragments. Ten different groups of polymers were found, with polyester, polyethylene and polypropylene being the most abundant. Synthetic hair, textile and water sachets/small plastic bags were expected to be the source of most MPs collected. High population abundance was shown to be related to high levels of MPs. Our findings suggest reducing single-use plastics, waste management/treatment, and clean drinking water, could reduce the impact of MPs in Ghana.
红树林是关键生态服务的重要提供者。本研究旨在调查加纳西部和中部地区红树林中的微塑料（MP）污染水平。共对沉积物和水样中的1303个颗粒进行了分析，其中65%为微塑料。西部地区和中部地区的微塑料丰度存在显著差异。沉积物中的微塑料数量最多（703个），浓度范围为0.01至2.23个/克·干重，而水中的浓度范围为0.2至3.75个/升。纤维形状的微塑料最为丰富（67%），其次是碎片。发现了十种不同的聚合物组，其中聚酯、聚乙烯和聚丙烯最为丰富。合成毛发、纺织品和水袋/小塑料袋预计是所收集的大多数微塑料的来源。高人口密度与高微塑料水平相关。我们的研究结果表明，减少一次性塑料的使用、进行废物管理/处理以及提供清洁饮用水，可能会减少微塑料对加纳的影响。
