“微塑料调味品”：孟加拉国海盐中微塑料污染的研究。
"Microplastic seasoning": A study on microplastic contamination of sea salts in Bangladesh.
机构信息
University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrogenases, Research Institute of Fish Culture and Hydrobiology, Zatisi 728/II, 389 25 Vodnany, Czech Republic; Department of Oceanography, Noakhali Science and Technology University, Noakhali 3814, Bangladesh.
Department of Oceanography, Noakhali Science and Technology University, Noakhali 3814, Bangladesh.
出版信息
Mar Pollut Bull. 2024 Jan;198:115863. doi: 10.1016/j.marpolbul.2023.115863. Epub 2023 Nov 30.
This study investigated microplastics (MPs) in commercial sea salts from Bangladesh. The presence of MPs in the 18 sea salt bands was 100 %, where the mean MPs abundance was 471.67 MPs/kg, ranging between 300 and 670 MPs/kg. The maximum number of MPs in the 300-1500 μm size class was significantly higher than the 1500-3000 μm and 3000-5000 μm size class. The most dominant color was black. Fibers and foams were the dominant shapes. The highest number of MPs was 41 %, obtained from coarse salt grains. Four types of polymers were mainly identified from the analyzed samples: PP, PE, PET, and PA. The mean polymer risk index value among these sea salts was 539 to 1257. The findings of this study can be helpful for consumers, salt industries, and policymakers to be aware of or reduce MP contamination levels in sea salts during production and consumption.
本研究调查了孟加拉国商业海盐中的微塑料（MPs）。18 个海盐带中均存在 MPs，其 MPs 丰度平均值为 471.67 MPs/kg，范围在 300 至 670 MPs/kg 之间。300-1500μm 粒径类别的 MPs 数量最多，明显高于 1500-3000μm 和 3000-5000μm 粒径类别。最主要的颜色是黑色。纤维和泡沫是主要的形状。从粗盐粒中获得的 MPs 数量最高，为 41%。从分析样本中主要鉴定出了四种聚合物：PP、PE、PET 和 PA。这些海盐中平均聚合物风险指数值为 539 至 1257。本研究的结果有助于消费者、盐业和政策制定者在生产和消费过程中意识到或降低海盐中 MPs 污染水平。
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