109年度市售塑膠類食品器具，容器包裝產品含有及材料釋出之塑膠微粒調查研究   全文下載

Research on Microplastics in Bottled Water and Releasing From Commercial Plastic Food Containers, Food Utensil, and Packaging in the Year of 2020

塑膠微粒係指長度小於5 mm之塑膠碎片，由塑膠經分解所產生。塑膠微粒可藉由使用塑膠產品、飲食攝食或透過食物鏈進入人體中，對人體之影響尚待研究。為瞭解我國市售塑膠類食品器具容器包裝塑膠微粒之背景值含量，本研究採樣50件市售塑膠類食品器具容器包裝產品，並對其中21件產品以模擬正常使用方式，檢驗所釋出之塑膠微粒含量。結果顯示，在25℃下一次性塑膠杯碗釋出塑膠微粒之平均數量為2.9 particles（下稱PAs）/100 mL；茶包袋及咖啡袋樣品經95℃高溫熱水沖泡後釋出塑膠微粒之平均數量為120.4 PAs/200 mL；塑膠耐熱袋樣品，經95℃超純水浸泡10分鐘後未發現塑膠微粒；另對29件聚對苯二甲酸乙二酯（Polyethylene terephthalate, PET）瓶裝水檢測出所含有之塑膠微粒之平均數量為30.8 PAs/L，檢測出之塑膠微粒材質以PET及聚丙烯（Polypropylene, PP）為主。本次調查結果顯示我國市售塑膠類食品器具容器包裝材料釋出之塑膠微粒數值和國際文獻之數值相近。

Microplastics are small plastic fragments which are broken down from plastics that are less than 5 mm in length. Microplastics can enter human body by using plastic products, diet or through the food chain, however, it needs more researches to prove the relation with human health. There are 50 samples collected in this study for understanding the content of microplastic. The results showed 21 plastic containers released microplastics and the average amount was 2.9 particles (PAs)/100 mL at 25℃. After being immersed into hot water (95℃), microplastics were released from all teabags and coffee bags, and the average amount was 120.4 PAs /200 mL. Treating the plastic heat-resistant bag with hot water (95℃) did not detect microplastic. The average number of microplastics were detected in 29 polyethylene terephthalate (PET) bottled water samples is 30.8 particles/L, and the materials of the microplastics were PET and polypropylene (PP). This study showed that the number of microplastics releasing from food containers and packaging are similar to international's study.