About Chlordane

 

 

What is Chlordane?

Also known as chlordan, chlordane is a chemical compound with chemical formula C10H6CI8. The substance is a colorless liquid with a slightly pungent and chlorine-like odor. The chemical was banned for years in the United States due to its toxicity as a pesticide.

What Types of Industrial Uses Does it Have?

Prior to its banning, the chemical compound was used as a pesticide to control termites and food crop pests. The only commercial use for the viscous liquid substance is for fire ant control.

How Does Chlordane Get Into Your Drinking Water?

The chemical compound is resistant to degradation in the environment and may stay in the air, ground, and water for a long time. It may enter surface water and groundwater through leaching from pesticide applications.

What are the Health Risks Associated with Chlordane?

Some individuals who were exposed for years to levels of chlordane in drinking water above the MCL may experience liver or nervous system problems. They are also prone to increased risk of getting cancer.

How Common is Chlordane in Water?

Although it is no longer used intensively as a pesticide in the United States due to its banning, traces of the chemical contaminant can still be found in the environment including water systems.

What is the EPA’s Contamination Level Standards for Chlordane in Drinking Water?

The EPA has set a maximum contamination level goals (MCLG) of zero for the chemical contaminant chlordane. The maximum contaminant level (MCL) for the water pollutant is set at 0.002 mg/L or 2 ppb.

What is the Best Reduction Media for Removing Chlordane from Drinking Water?

You can effectively and safely remove the pollutant using a water filter system with granular activated carbon. Water filtration systems like AquaOx are made with premium activated carbon to eliminate chemical contaminants like chlordane from your drinking water. Get yours today and keep your family away from the harmful effects of chlordane!

From The Agency of Toxic Substances and Disease Registry

CAS#: 12789-03-6

Public Health Statement PDF PDF Version, 66 KB

Chlordane is a man-made chemical that was used as a pesticide in the United States from 1948 to 1988. It is sometimes referred to by the trade names Octachlor® and Velsicol 1068®. It is a thick liquid whose color ranges from colorless to amber, depending on its purity. It may have no smell or a mild, irritating smell. We do not know what it tastes like. Chlordane is not a single chemical, but is a mixture of many related chemicals, of which about 10 are major components. Some of the major components are trans-chlordane, cis-chlordane, beta-chlordene, heptachlor, and trans-nonachlor. Chlordane does not dissolve in water. Therefore, before it can be used as a spray, it must be placed in water with emulsifiers (soap-like substances), which results in a milky-looking mixture.

From 1983 until 1988, chlordane’s only approved use was to control termites in homes. The pesticide was applied underground around the foundation of homes. When chlordane is used in the soil around a house, it kills termites that come into contact with it.

Before 1978, chlordane was also used as a pesticide on agricultural crops, lawns, and gardens and as a fumigating agent. Because of concerns over cancer risk, evidence of human exposure and build up in body fat, persistence in the environment, and danger to wildlife, the EPA canceled the use of chlordane on food crops and phased out other above-ground uses over the next 5 years. In 1988, when the EPA canceled chlordane’s use for controlling termites, all approved use of chlordane in the United States stopped.

1,1-Dichloroethylene (Vinylidene Chloride)

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