Discusses the different types of risks imposed when exposed to asbestos. Risks that are discussed are cancer risks, reproductive effects, and chronic effects.

Learn about the threat of lead in drinking water and what actions you can take to prevent or deal with exposure.

Market-based regulatory programs designed by the EPA, with information for consumers and industry cap-and-trade policies, Clean Air Act, and other government-sponsored efforts to reduce air pollution.

Information provided on pesticide residues on food, the possibility that these pesticides could harm us, and what the government does to ensure that pesticides used on food are safe.

Find out about the EPA's Radiation Protection Division, which aims to protect the nation's people and environment from harmful exposure to radiation.

Concerned about an environmental situation within the community but don't know where to go for answers? Find out here!

The Nobel E-Museum offers several lengthy paragraphs on Emil von Behring. Includes links to sections on his Nobel Prize presentation speech and on commemorative stamps in his honor.

Find various resources from Sesame Street such as videos and games focusing on emotional development.

In the KET animated video Encontrado mi lugar, a boy describes his evening routine, which includes helping his parents with chores. [1:24]

Look at the organs of the endocrine system and examine them in detail as you click on the interactive animation.

Learn how waterways are polluted by agricultural pesticides such as atrazine, a herbicide commonly used on corn farms, in this video segment featuring live-action animation adapted from the independent film 'Big River: A King Corn Companion.' Also, hear about health concerns related to atrazine exposure from contaminated drinking water. Includes background essay and discussion questions. [1:18]

This video, adapted from 'Contaminated Without Consent,' explains how the Environmental Working Group, an advocacy organization working to protect children from toxic chemicals in the environment, tested 10 samples of umbilical cord blood, and details their findings. In the samples, the group found more than 200 chemicals, some of which were associated with cancer and other chronic diseases. Dr. Ted Schettler, with Physicians for Social Responsibility, explains that many chemicals have ended up in unexpected places (like breast milk, cord blood, and wildlife) and that action must be taken to protect the population from exposure. Includes background essay and discussion questions. [1:31]

Conflicting theories about what causes autism are explored in this video segment from 'Greater Boston.' Scientists still don't have an answer, and while many focus on genetics, some suspect that the environment may also play a role. Mark Blaxill, whose daughter Michaela is autistic, explains why he thinks the disorder is triggered by environmental factors. Dr. Martha Herbert, who studies the brains of autistic children, says that toxins like metals, pesticides, and PCBs have all come under suspicion. But other scientists, like Dr. David Miller, say the key to autism lies in a person's genes. Includes background essay and discussion questions. [3:31]

In this video adapted from 'Contaminated Without Consent,' participants in a national study talk about the toxic chemicals - including phthalates, BPA, and brominated flame retardants - found in dust samples from their homes. Scientist John Warner discusses the possibility of safer alternatives using green chemistry: the science of how to make materials in an environmentally responsible way. Includes background essay and discussion questions. [2:52]

Hear the personal story of Jamie Armstrong, a 10-year-old girl in Halifax, Nova Scotia, who developed a rash and serious asthma as a baby after her apartment was sprayed for cockroaches. Years later, Jamie still has severe asthmatic and allergic reactions when neighbors spray their yards with pesticides. When a ban on pesticides was proposed in Halifax, Jamie was one of more than 100 people to testify before the Halifax City Council to support the ban. Partly as a result of Jamie's testimony, Halifax became the first major North American city to ban the use of pesticides for lawn or garden use. Video segment adapted from Playing with Poison. Includes background essay and discussion questions. [2:26]

This video adapted from 'The Hidden Epidemic: Heart Disease in America' examines the environmental factors that decades ago made heart disease the leading killer in America. While its root causes were unknown at that time, today researchers can trace the problem to changes in the American lifestyle after World War II. Postwar prosperity led to more sedentary lifestyles and fattier diets. And cigarettes, which were introduced to soldiers during the war, became broadly popular. Researchers believe that the epidemic can be reversed if people eat healthier diets, exercise more, and stop smoking. Includes background essay and discussion questions. [4:17]

In this animated video segment adapted from the Eagle Books series produced by the Centers for Disease Control and Prevention, an American Indian boy named Rain That Dances meets Mr. Eagle, who is sad about the health of the people in the village. Mr. Eagle describes how hard work and physical activity used to be a way of life, making people strong and healthy, but now many people are sick with diabetes because of their new lifestyles. Rain That Dances learns how to prevent diabetes by eating healthy traditional foods and being more active, like his ancestors. Includes background essay and discussion questions. [3:49]

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