The World Health Organization answers questions relating to dioxins in our environment. Learn what dioxins are, how they effect our health and what is being done about possible contamination of the food supply.

While students gain an understand of basic environmental toxicology, they explore the health impacts of industrialization on society in these lessons. This is a cross curricular unit that addresses standards for eleventh grade in math,...

In this self-paced lesson, students learn how environmental factors affect the health of living things, including humans.

Investigate synthetic chemicals that may be found in one's environment, and consider how toxic synthetic chemicals may affect people differently. Reflect on alternatives to toxic home-use products, and evaluate the risks and benefits.

Many different kinds of organisms live in water. Excess nutrients can cause over-abundant growth of some organisms living in water and non-point source pollution is a major threat to water supplies in the United States. In this activity...

This site provides information about the active ingredients registered as pesticides. Site discusses toxicology, exposure, dose-response and risk characterization.

This site contains great information about a number of household hazardous wastes and suggested methods of disposal.

Information about the element, Zinc, atomic number 30. Covers physical and chemical properties, how abundant it is on the Earth, where it occurs, isotopes, zinc in the environment, its role in human health, and the history of its use in...

Read a brief history of the use of DDT in the United States, its effect on wildlife, and the banning of the toxin in 1972 by the EPA.

This US Geological Survey site briefly discusses the basics of why pesticides are increasingly found in our ground water. Click Home to access the site in Spanish.

A concise site that defines hazardous waste and looks at who is responsible for contaminating our planet.