海洋塑膠微粒(Microplastics, MPs)污染目前受到全世界很大的關注，世界上許多國家已在沙灘上發現塑膠微粒的存在。大部分塑膠微例來自於大型的塑膠碎裂而成，而其他則來自塑料原料，包含個人護理產品中的”柔珠“及清洗織品過程中的塑膠微纖維。然而，在台灣相關的研究報告卻很少。本研究在2017年6月及11月分乾濕兩季，從台灣恆春半島八處沙灘進行採樣分析。本實驗利用飽和鹽水密度分離法萃取塑膠微粒，再利用顯微鏡進行形狀和顏色的分類，最後以傅立葉變換衰減全反射紅外光譜儀(Attenuated Total internal Reflectance Fourier Transform Infrared spectrosocopy, ATR-FTIR) 鑑定塑膠微粒的化學組成。結果顯示恆春半島海岸的塑膠微粒污染是無處不在的，尤其是在遊憩型沙灘的遊客活動範圍內區域。塑膠微粒以纖維比例最高，佔97%以上，其中57％是白色纖維。塑膠微粒含量以白砂最高，顯著高過於保力溪、後壁湖、佳樂水。本研究資料將可提供 MPs在全世界沿岸沙灘分佈現況,以及管理者對於台灣沿岸沙灘管理的參考。

Marine plastic particles (Microplastics, MPs) pollution is currently one of the world's greatest concerns. Most MPs are from the breakdown of larger plastics，and others are from plastic raw material, including “micro-beads” used as personal cosmetics and microplastic textile fiber from fabric washing.However, there is still little relevant research in Taiwan. We have wet and dry seasons in June and November 2017.Thus, the study is based on 8 sampling sites along the sandy shore in Hengchun Peninsula where is located in southern Taiwan. Techniques in the study include application of saturated salt water density separation method to extract plastic particles at first. Second, classify the particles according to shape and color with microscope. Finally, use Fourier transform attenuated total infrared spectroscopy (Attenuated Total internal Reflectance Fourier Transform Infrared spectrosocopy, ATR-FTIR) to identify the chemical composition of plastic particles. The result shows that MPs are ubiquitous on the beach in Hengchun Peninsula, especially on the recreational beach. The highest percentage of MPs is fiber (97%), and white is the dominant color (57%). The quantity of MPs on Baisha beach is significantly higher than Baolisi, Houbihu, and Jialeshuei. This study also discusses the volume, shape, sorts, spatial and seasonal distribution of MPs. It can provide not only information for studies of global MPs distribution along the coast but also reference to the coastal management in Taiwan. 


第一章 前言 1
第二章 文獻回顧 3
第三章 材料與方法 9
第四章 實驗結果 15
第五章 討論 25
第六章 結論 33

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