nontoxic

Proponents of building with materials derived from sources like clay, straw and hemp say they’re fire-resistant, carbon-friendly and nontoxic when scorched.

Ceramic nonstick cookware: A popular new class of nonstick cookware, these candy-colored ceramic pans — such as the Instagram-famous Always Pan — are often marketed as nontoxic.

The splintered fluorine atoms, the researchers report, are safely sequestered by reacting them with potassium hydride in solution to form potassium fluoride, a nontoxic ingredient in toothpaste.

The safest nontoxic material options for kitchen utensil are wood and stainless steel.

Chaves uses mosquito dunks, beige, doughnut-shaped floats that kill mosquito larvae but are nontoxic to other creatures.