Most people are aware of typical environmental contaminants that are produced as a result of modern human activity, such as carbon monoxide, nitrogen dioxide, and particulate matter. Residents of larger cities may even be familiar with the visible smog that can engulf a skyline as a result of these air pollutants.

Aside from the common ones, other toxic contaminants exist in the environment that may be lesser-known by the general population, but can be just as harmful to humans. The word, “dioxins” refers to a group of compounds that includes dioxins, furans, and certain polychlorinated biphenyls (PCBs). These structurally similar compounds are produced inadvertently as a result of large scale combustion activities such as incineration, thermal metal processes, and car exhaust. PCBs were actually intentionally produced during the mid twentieth century to be used in transformer oil, coolant fluids, carbonless copy paper, and plasticizers, until their manufacture was banned by the U.S. Environmental Protection Agency (EPA) in 1979. Continue Reading