Per- and polyfluoroalkyl substances are synthetic environmental pollutants previously used for packaging applications as a grease, oil, and water-resistant coating. Exposure reported in previous studies highlighting potential concerns with public health. This study evaluated performance of coated paper packaging used for microwave popcorn, snacks, and sandwich bags for presence of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS). Current paper packaging materials: seven popcorn bags and three snack and sandwich bags were analysed for PFOA and PFOS and compared to concentrations in microwave popcorn bags between 2005 and 2018. Only two microwave popcorn bags had average PFOA content above the limit of quantitation of 5.11 ng g⁻¹ paper. All other sample types had PFOA and PFOS values below the limit of detection (LOD) of 1.53 and 0.63 ng g⁻¹ paper, respectively. Results of this study follow trends from 2005 to 2018 suggesting a reduction in PFOS and PFOA concentrations in microwave packaging.

全氟烷基物质和多氟烷基物质是合成环境污染物，以前曾作为油脂，油和防水涂料用于包装应用。先前研究报告的暴露强调了对公共卫生的潜在关注。这项研究评估了用于微波爆米花，零食和三明治袋的铜版纸包装的性能，以评估是否存在全氟辛酸（PFOA）和全氟辛烷磺酸（PFOS）。当前的纸质包装材料：分析了七个爆米花袋和三个零食和三明治袋中的PFOA和PFOS，并与2005年至2018年之间微波爆米花袋中的浓度进行了比较。只有两个微波爆米花袋中的PFOA平均含量高于5.11 ng的定量限制g ^-1纸。所有其他样品类型的PFOA和PFOS值分别低于1.53和0.63 ng g ^-1纸的检出限（LOD）。这项研究的结果遵循2005年至2018年的趋势，表明微波包装中PFOS和PFOA的浓度降低。