Showing 1-15 of 42
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Concentrations of perfluoroalkyl substances in the dust of Japanese households and buildings; Implications for human exposure
Science
1 Jun 2026 | Atmos. Pollut. Res.
PFOS, PFOA, and PFNA remain persistent in indoor dust despite phaseouts, with campus and public buildings containing more than 16x higher PFAS concentrations than household dust.
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Okinawa town finds elevated PFAS levels near Marine base in annual water survey
News
9 Apr 2026 | Stars and Stripes
Three sites near the Ryukyu Hospital showed the highest PFAS levels, including 220 parts per trillion upstream of the hospital, 200 parts per trillion downstream and 130 parts per trillion where streams merged, according to the survey results.
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Alarming pet food study is causing great concern among dog and cat owners
News
3 Apr 2026 | Earth.com
Across 100 products sold in Japan, the team screened 34 PFAS and found contamination across dog and cat foods alike, mainly from contaminated fish ingredients.
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Fish-based pet food may expose cats and dogs to forever chemicals
News
20 Feb 2026 | New Scientist
A survey of 100 commercial foods for dogs and cats revealed that PFAS chemicals appear in numerous brands and types, with fish-based products among those with the highest levels.
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U.S. military rejects Okinawa access requests over PFAS findings
News
19 Dec 2025 | The Japan Times
The reply says that inspections could be considered only if there were agreed upon environmental standards enabling both sides to properly assess sampling results and clear scientific evidence identifying U.S. facilities as the pollution source.
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Tokyo says no to Okinawa’s funding request for ‘forever chemical’ cleanup
News
14 Nov 2025 | Stars and Stripes
State Minister Masahisa Miyazaki said the ministry cannot pay for plant maintenance, including filter replacement, under the current legal framework
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Association between maternal exposure to per-and polyfluoroalkyl substances and childhood growth trajectories up to 4 years of age: The Japan environment and children’s study
Science
24 Oct 2025 | Environ Sci Technol
Maternal exposure to PFAS during pregnancy was linked to slower early childhood growth in Japan, with higher PFOS, PFOA, and PFHxS levels associated with lower weight gain and shorter height through age four, suggesting that prenatal PFAS exposure may hinder fetal and postnatal development.
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Employees of major chemical maker Daikin underwent PFAS blood tests
News
13 Sep 2025 | KYODO News
Major Japanese chemical maker Daikin Industries Ltd. conducted blood tests on employees in the past following possible exposure to potentially harmful PFAS chemicals, a source familiar with the matter said Saturday.
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Treated PFAS water at Air Force base in Tokyo is safe for release, Japan says
News
30 May 2025 | Stars and Stripes
The Japanese government on Friday gave the U.S. military the green light to release about 400,000 gallons of treated water from this airlift hub in western Tokyo.
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PFAS levels found to exceed gov't cap in 22 of Japan's 47 prefectures
News
26 Apr 2025 | Japan Today
Potentially harmful PFAS chemicals have been detected at high levels in rivers and groundwater across 22 of Japan's 47 prefectures, a government survey conducted in fiscal 2023 showed Friday.
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High serum perfluorooctanoic acid (PFOA) concentrations and interstitial lung disease in former and current workers in a fluorochemical company
Science
22 Apr 2025 | Ind Health
Former workers at a Japanese chemical plant who were exposed to dust containing high levels of PFOA, had much higher blood concentrations and a greater risk of lung disease even years after the plant stopped using PFAS, highlighting the need for long-term health monitoring.
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Determinants of plasma poly-and perfluoroalkyl substances during pregnancy: The Japan environment and children’s study
Science
1 Apr 2025 | Ecotoxicol. Environ. Saf
In a study of 103,099 pregnant women in Japan, researchers found that PFAS levels in blood varied most by region, with higher levels linked to certain areas, older age, higher fish intake, and socioeconomic status—highlighting both geographic and personal factors driving exposure to these toxic chemicals.
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Characterizing seasonal patterns, gas-particle partitioning, and potential sources of airborne per-and polyfluoroalkyl substances in Japan
Science
4 Mar 2025 | Environ. Sci. Technol.
Airborne PFAAs and their precursors in Japan show seasonal variations, with PFCAs more abundant in warm months and PFSAs in colder months, primarily originating from aqueous film-forming foams, waste streams, and fluoropolymer manufacturing.
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PFAS levels in 80% of Okayama townsfolk exceed U.S. guidelines
News
4 Feb 2025 | The Asahi Shimbun
More than 80 percent of Kibi-Chuo residents tested for cancer-causing organic fluorine compounds in their blood had levels exceeding U.S. guidelines, according to town officials.
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Exploring the Chemical Complexity and Sources of Airborne Fine Particulate Matter in East Asia by Nontarget Analysis and Multivariate Modeling
Science
27 Jan 2025 | Environ Sci Technol
Airborne fine particulate matter (PM2.5) in East Asia contains thousands of complex organic and inorganic chemicals, including newly identified PFAS seasonal variations are influenced by temperature and air mass origins from China, the Korean Peninsula, and surrounding seas.