Difference between revisions of "Dichlorvos"
(Boiling point = 140C, so a liquid at room temperature (but with a high vapour pressure), and not technically a fumigant which is a gas at RT.)
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Latest revision as of 10:00, 20 September 2010
|File:Dichlorvos Structural Formulae .V.1.svg|
|Systematic (IUPAC) name|
2,2-dichlorovinyl dimethyl phosphate
|ATCvet code||QP52AB03 (WHO) QP53|
|Molar mass||220.98 g/mol[[Script error: No such module "String".]]|
|Script error: No such module "collapsible list".|
Dichlorvos or 2,2-dichlorovinyl dimethyl phosphate (DDVP) is a highly volatile organophosphate, widely used as a insecticide to control household pests, in public health, and protecting stored product from insects. It is effective against mushroom flies, aphids, spider mites, caterpillars, thrips, and whiteflies in greenhouse, outdoor fruit, and vegetable crops. It is also used in the milling and grain handling industries and to treat a variety of parasitic worm infections in dogs, livestock, and humans. It is fed to livestock to control bot fly larvae in the manure. It acts against insects as both a contact and a stomach poison. It is available as an aerosol and soluble concentrate. It is also used in pet collars and "no-pest strips" as pesticide-impregnated plastic. The United States Environmental Protection Agency first considered a ban on DDVP in 1981. Since then it has been close to being banned on several occasions, but continues to be available. Major concerns are over acute and chronic toxicity. There is no conclusive evidence of carcinogenicity to date, however a 2010 study found that each 10-fold increase in urinary concentration of organophosphate metabolites was associated with a 55% to 72% increase in the odds of ADHD in children.
DDVP is absorbed through all routes of exposure. its symptoms are weakness, headache, tightness in chest, blurred vision, salivation, sweating, nausea, vomiting, diarrhea, and abdominal cramps.
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- Extension Toxicology Network fact sheet
- Media Release from Australian Pesticides & Veterinary Medicines Authority
- Raeburn, Paul (Aug 2006). "Slow-Acting: After 25 years the EPA still won't ban a risky pesticide". Scientific American. 295 (2): 26. PMID 16866280.
- Material Safety Data Sheet (MSDS) for Dichlorvos
- BBC News: Insecticide ban amid cancer fears
- Australian Pesticides & Veterinary Medicines Authority review of Dichlorvos