Japan is set to launch a comprehensive three-year study starting in June 2024 to investigate the health effects of per- and polyfluoroalkyl substances (PFAS), commonly known as \"forever chemicals.\" This initiative comes in response to the detection of high concentrations of PFAS in various regions across the country, sparking concerns among residents.
PFAS are widely used in products like non-stick frying pans and water-repellent clothing. Recent findings have revealed alarming levels of these chemicals in human blood and water sources near Self-Defense Forces and U.S. military bases, as well as in industrial areas. Notably, areas around Yokota Air Base in western Tokyo and the U.S. Navy base in Yokosuka have reported PFAS levels exceeding the Japanese government’s safety standards. Additionally, a drainage channel in an industrial park in Fukushima Prefecture and regions surrounding a chemical factory in Shizuoka Prefecture have shown elevated PFAS concentrations. In February 2024, well water near the Seno River in Higashihiroshima City, Hiroshima Prefecture, was found to contain PFAS levels 300 times higher than the provisional limit of 50 ng.
Known for their persistence in the environment and human body, PFAS can accumulate over time, potentially leading to serious health issues such as liver damage, thyroid disease, obesity, fertility problems, and cancer.
The government-led study will be conducted by Hokkaido University, Hyogo Medical University, and the National Institute of Health Sciences. Hokkaido University will analyze blood samples from around 700 individuals, ranging from fetal stages to late adolescence, to examine the impact of 39 different PFAS on fat metabolism and development. Hyogo Medical University will carry out experiments on mice to determine whether PFAS exposure suppresses the immune system and diminishes the effectiveness of vaccinations. Meanwhile, the National Institute of Health Sciences aims to uncover the molecular mechanisms behind PFAS toxicity.
This proactive approach underscores Japan’s commitment to safeguarding public health and addressing the environmental challenges posed by persistent pollutants like PFAS.
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Japan to study health impact after PFAS detection raises concern
cgtn.com
