The Henderson Main Post Office temporarily closed Thursday when a small amount of mercury was found, according to a Postal ...

HENDERSON (KTNV) — The Henderson Main Post Office closes temporarily due to the discovery of mercury in their office on ...

We know that red mercury makes the manufacturing of nuclear bombs much, much easier. We don’t exactly know how it manages to do this, but that’s only because red mercury, as far as we know ...

A CDC advisory has recommended to ban the use of thimerosal in flu shots despite no evidence that it causes any harm.

WASHINGTON -- A federal study of mercury contamination released today found the toxic substance in every fish tested at nearly 300 streams across the country, a finding that underscores how ...

The CDC panel voted against an ingredient that the anti-vaccine movement has long targeted, while Arcadia was acquired by ...

There is a lot scientists don't understand about mercury — namely, how it becomes its most toxic form and why our bodies don't get rid of it. Researchers with the Woods Hole Oceanographic Institution ...

Skin lesions from arsenic poisoning. ajc1, CC BY-NC-ND Elemental arsenic has an LD50 of around 13 mg/kg – orders of magnitude higher than some of the substances on this list.

LD50 is a measure of the dose of a substance needed to kill half of a given population, usually of mice. It is usually measured in dosage needed per unit weight of the animal.