<Nihon Trim Survey on Hydration Awareness> About 80% Answered They Are "Completely Unaware" of the April 2026 Tap Water Quality Standard Revision
Nihon Trim conducted an awareness survey on hydration, revealing that approximately 80% of respondents are entirely unaware of the upcoming April 2026 revision to the tap water quality standards, which elevates PFAS to a strict quality standard item.
📋 Article Processing Timeline
- 📰 Published: April 1, 2026 at 22:00
- 🔍 Collected: April 1, 2026 at 16:47
- 🤖 AI Analyzed: April 21, 2026 at 10:45 (473h 57m after Collected)
Nihon Trim Co., Ltd. (Headquarters: Osaka City; President: Shuo Tahara; hereinafter "Nihon Trim"), which holds the No. 1*1 market share in water purifier sales, conducted an "Awareness Survey on Hydration" targeting 500 men and women in their 20s to 60s nationwide.
With the tap water quality standards revised as of April 1, 2026, organic fluorine compounds (PFOS/PFOA) have been upgraded to water quality standard items, bringing increased attention to "water" as living infrastructure. The survey results revealed that traditional drinking habits are changing, with a new habit focused on "functionality" taking root, especially among younger demographics.
*1 2023 Domestic Market for Home Water Purifiers. Total series products based on manufacturer shipment value of the main unit. Surveyed by Yano Research Institute Ltd., as of June 2025. (These survey results are estimates based on qualitative research and analysis methods.)
■ Survey Results Summary
1. From April 2026, the "Tap Water Quality Standards" will be revised. About 80% of the total answered they are "completely unaware" of the revision.
2. Direct consumption of tap water is polarized by "generation." A style of "not drinking tap water" is spreading, centered on younger demographics.
3. "Functional water" has become a new selection criterion. Over half answered they have "drunk it before."
4. It is overwhelmingly women who feel the benefits of sufficient hydration.
5. The percentage of those who know that some water purifiers/conditioners that make drinking water for home use are "controlled medical devices for improving gastrointestinal symptoms" is 20%.
■ Survey Overview
Survey Content: Awareness survey on hydration accompanying the 2026 tap water quality standard revision
Survey Target: Men and women in their 20s to 60s nationwide (Age/Gender equally divided)
Valid Responses: 500 people
Survey Period: March 2026
Survey Method: Internet survey (Rakuten Insight)
*Please credit "Survey by Nihon Trim" when quoting the survey.
1. From April 2026, the "Tap Water Quality Standards" will be revised. About 80% of the total answered they are "completely unaware" of the revision.
From April 1, 2026, the tap water quality standards were revised. The target values for organic fluorine compounds (PFOS/PFOA*2), whose persistence in the environment has become a problem in recent years, have been raised to stricter "water quality standard items," and legal compliance obligations have been strengthened.
*2 PFOS/PFOA are a type of "organic fluorine compounds (PFAS)."
Quoted from the Ministry of the Environment: https://www.env.go.jp/content/000241758.pdf
Ahead of this revision
With the tap water quality standards revised as of April 1, 2026, organic fluorine compounds (PFOS/PFOA) have been upgraded to water quality standard items, bringing increased attention to "water" as living infrastructure. The survey results revealed that traditional drinking habits are changing, with a new habit focused on "functionality" taking root, especially among younger demographics.
*1 2023 Domestic Market for Home Water Purifiers. Total series products based on manufacturer shipment value of the main unit. Surveyed by Yano Research Institute Ltd., as of June 2025. (These survey results are estimates based on qualitative research and analysis methods.)
■ Survey Results Summary
1. From April 2026, the "Tap Water Quality Standards" will be revised. About 80% of the total answered they are "completely unaware" of the revision.
2. Direct consumption of tap water is polarized by "generation." A style of "not drinking tap water" is spreading, centered on younger demographics.
3. "Functional water" has become a new selection criterion. Over half answered they have "drunk it before."
4. It is overwhelmingly women who feel the benefits of sufficient hydration.
5. The percentage of those who know that some water purifiers/conditioners that make drinking water for home use are "controlled medical devices for improving gastrointestinal symptoms" is 20%.
■ Survey Overview
Survey Content: Awareness survey on hydration accompanying the 2026 tap water quality standard revision
Survey Target: Men and women in their 20s to 60s nationwide (Age/Gender equally divided)
Valid Responses: 500 people
Survey Period: March 2026
Survey Method: Internet survey (Rakuten Insight)
*Please credit "Survey by Nihon Trim" when quoting the survey.
1. From April 2026, the "Tap Water Quality Standards" will be revised. About 80% of the total answered they are "completely unaware" of the revision.
From April 1, 2026, the tap water quality standards were revised. The target values for organic fluorine compounds (PFOS/PFOA*2), whose persistence in the environment has become a problem in recent years, have been raised to stricter "water quality standard items," and legal compliance obligations have been strengthened.
*2 PFOS/PFOA are a type of "organic fluorine compounds (PFAS)."
Quoted from the Ministry of the Environment: https://www.env.go.jp/content/000241758.pdf
Ahead of this revision