当地时间2月5日，总台记者获悉，京都府立大学环境卫生学教授原田浩二表示，每升泡沫中检测出的有 机氟化合物(PFAS)约为268纳克，超过日本暂定目标值的5倍。 经济观察网据央视新闻客户端消息，今年1月下旬，在日本冲绳县宜野湾市的一住宅区内，发现有泡沫 从下水道井盖中冒出。宜野湾市方面介绍，该井盖下方的下水道与附近的美军普天间机场相连。 PFAS是全氟烷基和多氟烷基化合物等多种有机氟化合物的总称。由于这类化学物质难以降解，会在环 境和人体中累积，通常又被称为"永久性化学物"。 2020年，普天间机场曾发生含有PFAS的泡沫灭火剂流入住宅区的事件。 这些泡沫于今年1月29日在宜野湾市被发现后，由市民团体采集后委托原田教授进行检测。原田教授指 出，美军基地内可能一直存在PFAS外流的情况。 ...

Core Insights - A research team from Kyoto University has found organic fluorinated compounds (PFAS) in all samples taken from 34 sewage treatment plants across Japan, raising health concerns [1] Group 1: Research Findings - The study involved random sampling from approximately 2,200 sewage treatment plants, with 34 selected based on size, treatment method, and regional distribution [1] - Samples of dewatered sludge were collected in 2023 from various locations, including Hokkaido, Kyushu, and Okinawa [1] - PFOS, a representative substance of PFAS, was detected in nearly all samples, with a median concentration of 5.1 nanograms per gram and a maximum value of 69 nanograms [1] Group 2: Health Implications - PFAS are a collective term for thousands of chemical substances that are difficult to degrade and accumulate in the human body and environment, often referred to as "forever chemicals" [1] - The U.S. Centers for Disease Control and Prevention (CDC) has indicated that these substances may lead to various health issues, including kidney cancer, testicular cancer, and elevated cholesterol levels [1]