Per- and polyfluoroalkyl substances (PFAS) have been used to waterproof and greaseproof food serviceware for decades. Health concerns about these compounds have drawn attention to the potential for contamination of the food system. Finished compost (n = 3) made from manure and food serviceware labeled "compostable" generated at a large fair was found to contain 12 or 13 of the 28 PFAS compounds sampled for, in concentrations ranging from 1.1 to 183 μg/kg (Σ28PFAS range = 209-455 μg/kg). Of note, perfluorooctanoic acid, a known carcinogen, was found at concentrations between 47.2 and 55.5 μg/kg. In contrast, fresh manure contained only perfluoroctanesulfonic acid at 3.7 μg/kg, and separated food waste from the fair composted with grass clippings and livestock bedding had no detectable PFAS in 2022, and Σ28PFAS = 9.6 μg/kg in 2019. Including compostable serviceware in compost likely contaminates the finished compost and threatens surrounding groundwater and surface waters, in addition to increasing potential crop uptake.

中文翻译：

---

来自“可堆肥”食品用具的全氟烷基物质和多氟烷基物质 (PFAS) 造成堆肥污染的证据。

几十年来，全氟烷基物质和多氟烷基物质 (PFAS) 一直用于防水防油食品用具。对这些化合物的健康问题引起了人们对食品系统污染潜力的关注。由大型集市上生产的标有“可堆肥”标签的粪便和食品餐具制成的成品堆肥（n = 3）被发现含有采样的 28 种 PFAS 化合物中的 12 种或 13 种，浓度范围为 1.1 至 183 μg/kg（Σ28PFAS 范围= 209-455 微克/千克）。值得注意的是，全氟辛酸是一种已知的致癌物，其浓度在 47.2 至 55.5 微克/千克之间。相比之下，新鲜粪便仅含有 3.7 微克/千克的全氟辛烷磺酸，并且在 2022 年用草屑和牲畜垫料堆肥的集市垃圾中分离出的食物垃圾在 2022 年未检测到 PFAS，而在 2019 年 Σ28PFAS = 9.6 微克/千克。