Chlorfenvinphos

Definition of chlorfenvinphos: Chlorfenvinphos is an insecticide used to control insect pests on livestock. It was also used to control household pests such as flies, fleas, and mites. The pure chemical is a colourless liquid with a mild odour. This is the common definition for chlorfenvinphos, other definitions can be discussed in the article

Notes

Chlorfenvinphos
Formula
C12H14Cl3O4P

Chlorfenvinphos was introduced in 1963 in the U.S.A., where it was used until 1991. No information is available about the volumes in which it was used.

Chlorfenvinphos enters the environment from run-off after rainfall and leaching from hazardous waste sites. After it has leached, it may be present in the soil and underground water. It has a water solubility of 130mg/l and a moderate tendency to adsorb to particles. In water it is relatively stable, (it is only slowly hydrolysed), but some biodegradation might occur by micro-organisms.

It may have a low to moderate tendency to bioaccumulate, however no experimental data on fishes are available. There also isn't any information available on its potential to biomagnify.

It is very toxic for fishes: acute toxicity concentrations range, depending on the species, between 25 µg/l and 1 mg/l. Zooplankton are even more vulnerable, some species don't survive short exposure to concentrations above 0.4 µg/l.

Environmental standards and legislation

Included in the water framework list of priority substances

See also

Chlorfenvinphos on the ED North Database

References

The main author of this article is Daphnis De Pooter Please note that others may also have edited the contents of this article. Citation: Daphnis De Pooter (2013): Chlorfenvinphos. Available from http://www.coastalwiki.org/wiki/Chlorfenvinphos [accessed on 21-11-2024] For other articles by this author see Category:Articles by Daphnis De Pooter For an overview of contributions by this author see Special:Contributions/Daphnisd