Developed as a byproduct of other products, the group of chemical compounds make up Dioxins, and all have similar qualities and chemical characteristics.

There are three closely-related families of dioxins and of these families, there are several hundred individual varieties: the chlorinated dibenzo-p-dioxins (CDDs), chlorinated dibenzofurans (CDFs) and certain polychlorinated biphenyls (PCBs). One chemical in the first group, 2,3,7,8-tetrachlorodibenzo-p-dioxin or 2,3,7,8-TCDD, has been shown to be very toxic in animal studies and is the one most studied.

It causes effects on the skin and may cause cancer in humans.

Usually, dioxins are accidently produced within the manufacturing industry, and the only time they have been used is for the purpose of research. Often, when the pulp and paper mill process of chlorine bleaching is where they are formed, usually consiting of 2,3,7,8-TCDD. During the chlorination process at waste and water drinking treatment plants, dioxins are developed. They can occur as contaminants in the manufacture of certain organic chemicals. Dioxins are released into the air in emissions from municipal solid waste and industrial incinerators.

How can dioxins affect my health?

Chloracne is the most notable adverse health effect of dioxin exposure among indiviudals, which exposes them to the largest amounts of 2,3,7,8-TCDD. Chloracne is a severe skin disease with acne-like lesions that occur mainly on the face and upper body. Other skin effects noted in people exposed to high doses of 2,3,7,8-TCDD include skin rashes, discoloration, and excessive body hair. Changes in blood and urine that may indicate liver damage also are seen in people. Exposure to high concentrations of dioxins may induce long-term alterations in glucose metabolism and subtle changes in hormonal levels.

In certain animal species, 2,3,7,8-TCDD is especially harmful and can cause death after a single exposure. Exposure to lower levels can cause a variety of health effects in animals, such as weight loss, liver damage, and disruption of the endocrine system. For many species the exposure to the 2,3,7,8-TCDD causes the immune system to become weakened and eventually halts the ability to combat viruses and bacteria. In other animal studies, exposure to 2,3,7,8-TCDD has caused reproductive damage and birth defects. Some animal species exposed to dioxins during pregnancy had miscarriages. The offspring of animals exposed to 2,3,7,8-TCDD during pregnancy often had severe birth defects including skeletal deformities, kidney defects, and weakened immune responses. How likely are dioxins to cause cancer?

Several studies suggest that exposure to 2,3,7,8-TCDD increases the risk of several types of cancer in people. Animal studies have also shown an increased risk of cancer from exposure to 2,3,7,8-TCDD. The World Health Organization (WHO) has determined that 2,3,7,8-TCDD is a human carcinogen (a substance that causes cancer). The Department of Health and Human Services (DHHS) has determined that 2,3,7,8-TCDD may reasonably be anticipated to cause cancer. What are the dangers of dioxins regarding children?

Page 1 of 2 :: First | Last :: Prev | 1 2 | Next