What is the half life of chlordane?
May 11, 2020 · What is the shelf life of chlordane? It has an environmental half-life of 10 to 20 years. Accordingly, how dangerous is chlordane? Exposure to chlordane occurs from its past use as a pesticide. The acute (short-term) effects of chlordane in humans consist of gastrointestinal distress and neurological symptoms, such as tremors and convulsions. Chronic (long-term) …
What are the long term effects of chlordane?
Chlordane lasts for 30 years. But health concerns about lingering chemical vapors led the EPA to ban chlordane use by exterminators after April, 1988. Chlordane can damage the central nervous system and is suspected of causing cancer, although not all scientists are convinced of that.
How long does chlordane take to kill termites?
Studies on chlordane levels in indoor air reported levels ranging from < 1 to 610,000 nanograms per cubic meter (ng/m 3). (1) Currently, exposure to chlordane appears to be highest for those persons living in homes that were treated for termites with chlordane. Chlordane may be found in the air in these homes for many years after treatment. (1)
Is chlordane still used in the US?
Mar 23, 2020 · Chlordane was applied under the home/building during treatment for termites and the half-life can be up to 30 years. Chlordane has a low vapor pressure and volatilizes slowly into the air of home/building above. Secondly, how dangerous is chlordane? Exposure to chlordane occurs from its past use as a pesticide.
How long does termite spot treatment last?
How long does fumigation last?
Can termites come back after treatment?
How effective is chlordane for termites?
Is Vikane fumigation safe?
How soon can termites return after fumigation?
Why am I still seeing termites after treatment?
How do you termite proof a house?
Is termite tenting effective?
Can you still buy chlordane?
Later in 1988, the EPA banned all uses of Chlordane. Today, Chlordane can still be manufactured legally in the United States, but may only be sold to and used by foreign countries.
What is a substitute for chlordane?
What is the mix ratio for chlordane?
Is chlordane still used?
Though chlordane was banned in the USA long ago, it can be still used in other countries. And people should know, why it is so dangerous and what happens when it enters the environment. The product could be used as a pesticide on gardens, lawns and crops, and in houses for termite control.
When was chlordane used?
People used it from 1948 to 1988 to control the number of termites in the house. Everybody could buy it those times. Chlordane was liked by homeowners and considered to be an effective insecticide. It was used not only against termites, but also other insects.
Is chlordane a termite killer?
The Banned Killer: Chlordane for Termite Treatment. Termites are really controversial insects. From one side, they are really helpful in nature, because consume fallen trees in the forest. From the other side, termites are really harmful for all the wooden objects they can find in your house or yard.
Is chlordane a chemical?
Actually chlordane is a mixture of more than 50 different chemicals. Different variation of this product have different toxicity. It may resemble amber liquid. The smell also differs, chlordane may have no scent or even a terrible odor. Nowadays chlordane for termite control is not used.
Is chlordane safe for termites?
According to some reports chlordane was dangerous for human health. Here you can learn more information about another effective termite control remedies: Bora-Care, Boric acid, Borate, Fipronil, Chlorpyrifos, Borax, Timbor, Termidor and Terminator.
Is chlordane a carcinogen?
The EPA proved that this chemical is a carcinogen for humans. There were a number of researches. For example, animals in laboratory got a liver cancer after they consumed a lot of chlordane. So, it may cause human cancer as well. Also, it takes a long time for chlordane to break down in soil, usually about 25-35 years.
What insecticide was used to kill termites?
If you were alive before 1988 and visited homes which were treated against termites, you are most probably exposed, because chlordane was the most popular insecticide those times. According to the researchers from all over the world, chlordane is found in a great number of substances.
What is chlordane used for?
Chlordane, or chlordan, is an organochlorine compound used as a pesticide. It is a white solid. In the United States, chlordane was used for termite-treatment of approximately 30 million homes until it was banned in 1988.
Is chlordane toxic to fish?
It requires many years to degrade. Chlordane bioaccumulates in animals. It is highly toxic to fish, with an LD 50 of 0.022–0.095 mg/kg (oral).
Is chlordane a pollutant?
Like other chlorinated cyclodiene insecticides, chlordane is classified as an organic pollutant hazardous for human health. It is resistant to degradation in the environment and in humans/animals and readily accumulates in lipids (fats) of humans and animals.
What is heptachlor used for?
Chlordane was used in homes and for termite control. Heptachlor was used as a soil and seed treatment and for termite control. Since 1992, the use of heptachlor has been limited to treatment of fire ants near utility equipment.
What is the 4th report?
In the Fourth National Report on Human Exposure to Environmental Chemicals (Fourth Report), CDC scientists measured the metabolites of chlordane and heptachlor in the blood serum (the clear part of blood) of 1,955 participants aged 12 years and older who took part in the National Health and Nutrition Examination Survey (NHANES) during 2003–2004. Prior survey periods of 1999–2000 and 2001–2002 are also included in the Fourth Report. By measuring the metabolites of chlordane and heptachlor in serum, scientists can estimate the amounts of these chemicals that have entered people’s bodies.
How does chlordane affect humans?
Exposure to chlordane occurs from its past use as a pesticide. The acute (short-term) effects of chlordanein humans consist of gastrointestinal distress and neurological symptoms, such as tremors andconvulsions. Chronic (long-term) inhalation exposure of humans to chlordane results in effects on thenervous system. An occupational study reported an association between chlordane exposure and non-Hodgkins's lymphoma, while other human studies did not show an association between chlordane exposureand leukemia or multiple myeloma. Animal studies have reported liver cancer in mice and male ratsexposed to chlordane via ingestion. EPA has classified chlordane as a Group B2, probable humancarcinogen.
Is chlordane a liquid or a gas?
Chlordane is a thick, liquid man-made chemical whose color ranges from colorless to amber. (1)Chlordane is not soluble in water and is either odorless or has a mild, irritating odor. The odor thresholdfor chlordane is not available. (1)The molecular formula for chlordane is C10H6Cl-5The vapor pressure for chlordane is 1x10
What are the effects of chlordane on the nervous system?
The acute (short-term) effects of chlordane in humans consist of gastrointestinal distress and neurological symptoms, such as tremors and convulsions. Chronic (long-term) inhalation exposure of humans to chlordane results in effects on the nervous system.
How does chlordane affect humans?
The acute (short-term) effects of chlordane in humans consist of gastrointestinal distress and neurological symptoms , such as tremors and convulsions. Chronic (long-term) inhalation exposure of humans to chlordane results in effects on the nervous system.
What is the best alternative to chlordane? Can you still a form of it?
been told that this application has been banned in this country, what is the best alternative OR Can you still a form of it??
Answer
Chlordane was banned many years ago and there are no forms of it left for home or professional use in the US. If you are looking for a termite product that would last a long time, Termidor SC is the product of choice. When applied properly you can expect the product to last for up to 10 years in the soil.
How long does termite treatment last?
On average, termite treatment lasts about 5 years. Liquid termite treatment can last five years or more, whereas termite bait stations only last one year and need to be maintained annually.
Do termite treatments last longer?
Your termite specialist will need to access all the wood components of your home. If these elements are inaccessible or harder to reach, the treatment won’t last as long.
How much damage do termites do to homes?
Termites aren’t just a nuisance—they can be a budget-ruiner. These pests cause $5 billion a year of damage across homes in the U.S. When you do seek treatment, you have to know how long it will last. You don’t want to risk termites coming back and attacking your home all over again.
How long do termites last?
Liquid Termite Treatments. These termite treatments last for five years on average. For this treatment, a termite specialist will dig a trench around the perimeter of your home and apply the liquid treatment in it. That’s not to say termites will never find their way across, even in five years.
Do termites need bait stations?
Termite Bait Stations. In order to be effective, termite bait stations need to be monitored and maintained year-round. A specialist will place the baits strategically around your property. Termites will take the bait while foraging, and bring the poisonous bait back to their colony, infecting the other termites.
How long does it take for termites to get rid of bait stations?
Termites will take the bait while foraging, and bring the poisonous bait back to their colony, infecting the other termites. However, it could take months for termites to come across the bait stations, so it may take multiple weeks to eliminate the colony.
What are the most common termites?
Subterranean termites and drywood termites are the most common. Subterranean termites live in the soil around houses and build tunnel networks to access their food—the wood that your house is made of. Drywood termites, on the other hand, tunnel within your wood and eat right through it.
What Is Chlordane?
Why Was Chlordane Banned?
- During the period while people could use this chemical, it was appreciated for its effectiveness and low price. People were really fond of its long-lasting effect. Chlordane could save a house from termites for about 20 years. In 1988 the EPA forbid to use it as a termite control method. Now chlordane can be used only by experts against some specie...
Chlordane in The Environment
- Though chlordane was banned in the USA long ago, it can be still used in other countries. And people should know, why it is so dangerous and what happens when it enters the environment. The product could be used as a pesticide on gardens, lawns and crops, and in houses for termite control. In soil chlordane strongly attaches to the particles in upper layers. It doesn’t usually get t…
Chlordane Termite Treatment
- While you are using chlordane for termites the chemical affects the nervous system of insects. That happens because some really important chemical signals are blocked, and that causes overstimulation. Here you can learn more information about effective treatment method called tenting (fumigation): dangers for termites, preparing for fumigation and cleaning after, how long …
How Can I Be Exposed to Chlordane?
- We were talking a lot about why chlordane was banned. You can easily check if you are exposed or not. If you were alive before 1988 and visited homes which were treated against termites, you are most probably exposed, because chlordane was the most popular insecticide those times. According to the researchers from all over the world, chlordane is found in a great number of su…
How to Limit Exposure?
- People may just only get information that their houses could be treated with chlordane long ago. But if that ever happened, the chemical is still here and may expose you. There are some useful tips helping to limit the exposure level: 1. Plant some grass near the houseor cover soil with some surface materials, for example, gravel. 2. Prevent your kids from playing on the ground near the f…
Useful Articles
- If you interested in more information of termites we recommend you to read the following articles: 1. All types of termites. Are they harmful to humans? Can they bite you? And what is the difference between drywood and subterraneanones? 2. What does swarmers of different species look like: drywood, subterranean, formosan? 3. Signs of infestation outside and in the house: in …
Conclusion
- We see how some insecticides can be harmful for nature. Knowing more information about chlordane we understand how dangerous it can be and why we should avoid it. This pesticide can still be sold in some countries due to its great effect against termites and low cost. You should be really careful about it, being able to prevent the others from using this harmful product.
Overview
Chlordane, or chlordan, is an organochlorine compound that was used as a pesticide. It is a white solid. In the United States, chlordane was used for termite-treatment of approximately 30 million homes until it was banned in 1988. Chlordane was banned 10 years earlier for food crops like corn and citrus, and on lawns and domestic gardens.
Like other chlorinated cyclodiene insecticides, chlordane is classified as an organic pollutanthaza…
Remediation
Chlordane was applied under the home/building during treatment for termites and the half-life can be up to 30 years. Chlordane has a low vapor pressure and volatilizes slowly into the air of home/building above. To remove chlordane from indoor air requires either ventilation (Heat Exchange Ventilation) or activated carbon filtration. Chemical remediation of chlordane in soils was attempted by the US Army Corps of Engineers by mixing chlordane with aqueous lime and p…
Production, composition and uses
Technical chlordane development was by chance at Velsicol Chemical Corporation by Julius Hyman in 1948, during a search for possible uses of a by-product of synthetic rubbermanufacturing. By chlorinating this by-product, persistent and potent insecticides were easily and cheaply produced. The chlorine atoms, 7 in the case of heptachlor, 8 in chlordane, and 9 in the case o…
Origin, pathways of exposure, and processes of excretion
In the years 1948–1988 chlordane was a common pesticide for corn and citrus crops, as well as a method of home termite control. Pathways of exposure to chlordane include ingestion of crops grown in chlordane-contaminated soil, inhalation of air in chlordane-treated homes and from landfills, and ingestion of high-fat foods such as meat, fish, and dairy, as chlordane builds up in fatty tiss…
Environmental impact
Being hydrophobic, chlordane adheres to soil particles and enters groundwater only slowly, owing to its low solubility (0.009 ppm). It requires many years to degrade. Chlordane bioaccumulates in animals. It is highly toxic to fish, with an LD50 of 0.022–0.095 mg/kg (oral).
Oxychlordane (C10H4Cl8O), the primary metabolite of chlordane, and heptachlor epoxide, the primary metaboliteof heptachlor, along with the two other main components of the chlordane mi…
Health effects
Exposure to chlordane/heptachlor and/or its metabolites (oxychlordane, heptachlor epoxide) are risk factors for type-2 diabetes, for lymphoma, for prostate cancer, for obesity, for testicular cancer, for breast cancer.
An epidemiological study conducted by the National Cancer Institute reported that higher levels of chlordane in dust on the floors of homes were associated with higher rates of non-Hodgkin lymp…
External links
• Chlordane Technical Fact Sheet - National Pesticide Information Center
• Chlordane General Fact Sheet - National Pesticide Information Center
• Chlordane Pesticide Information Profile - Extension Toxicology Network
How People Are Exposed to Chlordane and Heptachlor
- People are usually exposed to these chemicals by eating foods high in fat, such as meat, fish, and dairy products. Pregnant women may pass these chemicals to the fetus, and after birth, chlordane and heptachlor may be passed to infants through breast milk. Chlordane and heptachlor are converted in the body into chemicals called metabolites. These c...
How Chlordane and Heptachlor Affect People’s Health
- The human health effects from low environmental exposures to these chemicals are unknown. Short-term large exposures to either chlordane or heptachlor can cause seizures and injure the liver. Both chlordane and heptachlor are considered possible cancer-causing chemicals in humans.
Levels of Chlordane and Heptachlor Metabolites in The U.S. Population
- In the Fourth National Report on Human Exposure to Environmental Chemicals (Fourth Report), CDC scientists measured the metabolites of chlordane and heptachlor in the blood serum (the clear part of blood) of 1,955 participants aged 12 years and older who took part in the National Health and Nutrition Examination Survey (NHANES) during 2003–2004. Prior survey periods of 1…
Additional Resources
- Agency for Toxic Substances and Disease Registry
1. Public Health Statement for Chlordane 2. Public Health Statement for Heptachlor/Heptachlor Epoxide - Environmental Protection Agency
1. Technology Transfer Network Air Toxics Web Site: Chlordaneexternal icon