It can kill people and livestock and leaves nasty chemical burns even if you don't touch it. Get rid of poison hemlock before ...

Summer’s almost here, and that means nuisances: mosquitoes, poison ivy, and visiting relatives. Two cause itching, one causes ...

The dangers of refrigerant poisoning are serious. Freon, which is often used in refrigerants and coolants, is colorless and smells like freshly cut grass. Freon describes several chemicals ...

As he merged south on Interstate-5, he was uniquely aware that from this river of cars, including his own, issued an imperceptible and deadly chemical—the same chemical, he knew, disfiguring the ...