Difference between revisions of "Trifluralin"

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{{Definition|title= trifluralin  
 
{{Definition|title= trifluralin  
  
|definition=Trifluralin is a herbicide used to control a wide spectrum of annual grasses and broadleaf weeds in agriculture, horticulture, viticulture, amenity and home garden. The major crops it is used on are oilseed rape and sunflowers and, to a lesser extent, cotton and cereals.<ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00203_BD%20on%20trifluralin.pdf OSPAR Commission, 2005: OSPAR background document on trifluralin]</ref>}}
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|definition=Trifluralin is a herbicide used to control a wide spectrum of annual grasses and broadleaf weeds. It's mainly used on oilseed rape and sunflowers and, to a lesser extent, cotton and cereals<ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00203_BD%20on%20trifluralin.pdf OSPAR Commission, 2005: OSPAR background document on trifluralin]</ref>.}}
  
 
== Notes ==
 
== Notes ==
  
Approximately 3200 tonnes of active substance trifluralin annually are used in the EU (including accession countries). Trifluralin is presently authorised for use in Belgium, Finland, France, Germany, Ireland, Portugal, Spain and the United Kingdom. <ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00203_BD%20on%20trifluralin.pdf OSPAR Commission, 2005: OSPAR background document on trifluralin]</ref>
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{| class="toccolours" border="1" style="float: right; clear: right; margin: 0 0 1em 1em; border-collapse: collapse;"
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! bgcolor="#FF8888" | Trifluralin
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| align="center" bgcolor="#FFFFFF" | [[Image:Trifluralin.jpg|200px|Trifluralin ]]
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! bgcolor="#8888FF" | Formula
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| align="center" | C<sub>13</sub>H<sub>16</sub>F<sub>3</sub>N<sub>3</sub>O<sub>4</sub>
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Significant amounts may evaporate into the air from the agricultural use (estimated 64 t/y for total Europe), but photochemical oxidative degradation will rapidly decrease this load before it can be transported far beyond the coasts. Trifluralin has a high affinity towards organic matter and will therefore be found mostly in sediment and bound to suspended particles. Because of this high affinity to sediment, it's considered unlikely that large amounts of trifluralin enter the marine environment through run off from application areas. Trifluralin is rather stable in water, although it can rapidly be photodegraded. In a water sediment system its concentration is halved in less than 15 days.
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Approximately 3200 tonnes of trifluralin are annually used in the EU. Trifluralin is presently authorised for use in Belgium, Finland, France, Germany, Ireland, Portugal, Spain and the United Kingdom<ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00203_BD%20on%20trifluralin.pdf OSPAR Commission, 2005: OSPAR background document on trifluralin]</ref>.
Trifluralin is [[bioacumulation|bioacumulates]] in organisms and is thought to [[biomagnification|biomagnify]] through [[food chain|food chains]].
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It is also a very toxic substance, concentrations above 1 µg/l can interfere with the life cycle of some fish species, while concentrations above 12 µg/l are lethal for a few algae. Concentrations of trifluralin in both the North Sea and the Baltic sea are bellow 0,06 ng/l. Current concentrations also don't pose a threat for high trophic [[pollution and sea birds|sea birds]] or [[pollution and marine mammals|marine mammals]].<ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00203_BD%20on%20trifluralin.pdf OSPAR Commission, 2005: OSPAR background document on trifluralin]</ref>
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Significant amounts may evaporate into the air from the agricultural use (estimated 64 t/y for total Europe), where it will be rapidly degraded. Trifluralin has a high affinity towards organic matter and will therefore be mostly found in sediment and bound to suspended particles. Because of this high affinity to sediment, it's considered unlikely that large amounts of trifluralin enter the marine environment through run off from application areas. Trifluralin is rather unstable in water. The [[half-life]] in a water sediment system is less than 15 days.<P>
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Trifluralin [[bioaccumulation|bioacumulates]] in organisms and is thought to [[biomagnification|biomagnify]] through [[food chain|food chains]].<P>
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It is also a very [[toxic]] substance, concentrations above 1 µg/l can interfere with the life cycle of some [[pollution and pelagic fishes|fish]] [[species]], while concentrations above 12 µg/l are lethal for a few algae species. Concentrations of trifluralin in both the [[North Sea]] and the [[Baltic Sea]] are bellow 0,06 ng/l. Current concentrations also don't pose a threat for [[trophic level|high trophic]] [[pollution and sea birds|sea birds]] or [[pollution and marine mammals|marine mammals]]<ref name = OECD>[http://www.ospar.org/documents%5Cdbase%5Cpublications%5Cp00203_BD%20on%20trifluralin.pdf OSPAR Commission, 2005: OSPAR background document on trifluralin]</ref>.
 
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==References==
 
==References==
 
<references/>
 
<references/>
 
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{{author
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|AuthorID=19826
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|AuthorFullName=Daphnis De Pooter
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|AuthorName=Daphnisd}}
 
[[Category:Coastal and marine pollution]]
 
[[Category:Coastal and marine pollution]]

Revision as of 15:40, 20 March 2013

Definition of trifluralin:
Trifluralin is a herbicide used to control a wide spectrum of annual grasses and broadleaf weeds. It's mainly used on oilseed rape and sunflowers and, to a lesser extent, cotton and cereals[1].
This is the common definition for trifluralin, other definitions can be discussed in the article

Notes

Trifluralin
Trifluralin
Formula
C13H16F3N3O4

Approximately 3200 tonnes of trifluralin are annually used in the EU. Trifluralin is presently authorised for use in Belgium, Finland, France, Germany, Ireland, Portugal, Spain and the United Kingdom[1].

Significant amounts may evaporate into the air from the agricultural use (estimated 64 t/y for total Europe), where it will be rapidly degraded. Trifluralin has a high affinity towards organic matter and will therefore be mostly found in sediment and bound to suspended particles. Because of this high affinity to sediment, it's considered unlikely that large amounts of trifluralin enter the marine environment through run off from application areas. Trifluralin is rather unstable in water. The half-life in a water sediment system is less than 15 days.

Trifluralin bioacumulates in organisms and is thought to biomagnify through food chains.

It is also a very toxic substance, concentrations above 1 µg/l can interfere with the life cycle of some fish species, while concentrations above 12 µg/l are lethal for a few algae species. Concentrations of trifluralin in both the North Sea and the Baltic Sea are bellow 0,06 ng/l. Current concentrations also don't pose a threat for high trophic sea birds or marine mammals[1].


Environmental standards and legislation

Included in the OSPAR list of substances of priority action

Included in the water framework list of priority substances


See also

Trifluralin on the ED North Database

OSPAR background document on trifluralin


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): Trifluralin. Available from http://www.coastalwiki.org/wiki/Trifluralin [accessed on 28-03-2024]