Wildfire smoke, even from fires far away, carries potentially harmful gases that, once inside, tend to stick around. An air quality specialist offers an easy, cheap, effective way to deal with it.

Xylazine, or tranq, is increasingly being mixed with drugs like fentanyl or heroin and can be difficult to detect. Most people who use drugs are unable to tell if they have been exposed to it.

From ‘Breaking Bad’ to James Bond, certain chemicals are popular options for characters looking to achieve nefarious ends.

From eating potpourri to blast fishing, Wednesday Addams and her friends and family get involved in a number of grisly hijinks. But could they happen in real life?

Man-made chemical disrupt the activities of most human genes. What effect does this have on human health and how should regulators respond?

It's all about the dose.