Explain why this claim is scientifically false: “Every year…

Explain why this claim is scientifically false: “Every year the American funeral industry allows gallons of buried formaldehyde to seep into our soil and waterways.  They embalm a person with about 3 gallons of formaldehyde, then bury the person.  The person eventually decomposes and that 3 gallons of formaldehyde makes its way into the soil and ground water.”