谢福武,王少露,吴思怡,雷宇,冯莹,莫孙伟,何书海

• 1:海南省生态环境监测中心

摘要(Abstract)：

【目的】了解海南三大江入海河口区表层水体微塑料分布特征、污染现状和潜在影响因素。【方法】于2021年11月对海南南渡江、昌化江和万泉河入海河口区的微塑料污染状况进行研究分析。【结果与结论】南渡江、昌化江和万泉河河口表层水体微塑料丰度范围分别介于0.16～1.27、0.25～0.70、0.19～0.82 m~(-3)之间，平均丰度在0.42～0.47 m~(-3)之间，微塑料成分以聚丙烯（PP）、聚乙烯（PE）、聚酯纤维（PES）、聚苯乙烯（PS）占主导。其中，南渡江、昌化江河口区主要以粒径范围在0.5～3.0 mm的碎片状和纤维状的微塑料丰度居高，占比分别为73.3%和78.2%，而万泉河以粒径范围在2.0～5.0 mm的碎片状和纤维状微塑料为主，占比为54.8%。随入海河口区的岸线距离增加，微塑料丰度均呈现为从河口到近岸海域递减的趋势，各站位丰度有所降低并呈现明显差异。与国内外入海河口相比，本研究区域的微塑料丰度整体处于低污染水平。

关键词(KeyWords)： 微塑料;入海河口;南渡江;昌化江;万泉河;海南

Abstract:

Keywords:

基金项目(Foundation): 海南省自然科学基金青年基金（321QN0960）;; 海南省自然科学基金高层次人才基金（420RC755）

作者(Author): 谢福武,王少露,吴思怡,雷宇,冯莹,莫孙伟,何书海

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