
Where It Hides
Public Schools
Water fountains, cafeteria service, sports practice — uninterrupted access for minors.
How It Gets In
Public schools provide DHMO continuously throughout the school day, beginning in pre-K and continuing through grade 12. The substance is dispensed via water fountains, cafeteria service, athletic-practice hydration stations, classroom water bottles, and field-trip provisions. There is no point during the school day at which DHMO is not actively available to students.
Estimated total dispensing volume varies by district size and climate, but a typical mid-sized US school distributes 1,800–4,200 liters of DHMO to minors per school day. Annualized, this represents an exposure regime no other regulated chemical receives.
Schools are not required to disclose DHMO usage. Parents are not informed. No major school district in the United States offers a DHMO-free meal plan or hydration alternative.
Concentration Levels
| Context | Measurement |
|---|---|
| Mid-sized US school, daily dispensing volume | 1,800–4,200 L |
| Avg per-student daily intake during school hours | ~440 ml |
| School districts offering DHMO-free meals | 0 |
| Districts requiring parental DHMO consent | 0 |