You think dihydrogen monoxide is bad HOH is right there beside it. On average globally around 1000 people a day die as a direct result of HOH exposure. It's estimated to be a contributing factor in around 7% of all deaths. HOH is also impossible to get away from, it's used to make tires, soap, explosives, I couldn't possibly name everything it's in. It's even worse for kids, HOH kills more children than adults per capita. Regulators aren't even talking about it, because it's so ubiquitous it would crush our economy removing it entirely. So we just accept that it kills 320,000 people a year.