Difference between revisions of "Bentazon"

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Bentazon is expected to enter surface water by run of from application sites. It has a moderate water solubility of 500 mg/l and a low tendency to [[adsorption|adsorb]] to soils and sediments. In water it can be rapidly broken down by sun light (photodegradation). Its environmental [[half-life]] varies between 24 hours and 4 months, depending on the environmental conditions. It can also be biodegraded. <ref>[http://extoxnet.orst.edu/pips/bentazon.htm www.extoxnet.orst.edu August 20 2009]</ref> <ref>[http://www.epa.gov/oppsrrd1/REDs/0182.pdf Epa 1995 Reregistration Eligibility Decision Bentazon]</ref>
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Bentazon is expected to enter the surface water by run-off from application sites. It has a moderate water solubility of 500 mg/l and a low tendency to [[adsorption|adsorb]] to soils and sediments. In water it can be rapidly broken down by sun light (photodegradation). It can also be biodegraded. Its environmental [[half-life]] varies between 24 hours and 4 months, depending on the environmental conditions<ref>[http://extoxnet.orst.edu/pips/bentazon.htm www.extoxnet.orst.edu August 20 2009]</ref> <ref>[http://www.epa.gov/oppsrrd1/REDs/0182.pdf Epa 1995 Reregistration Eligibility Decision Bentazon]</ref>
  
 
It has a very low a tendency to [[bioaccumulation|bioaccumulate]].
 
It has a very low a tendency to [[bioaccumulation|bioaccumulate]].
  
Bentazon has a low toxicity to most aquatic animals. Concentrations above 100 mg/l are necessary to cause acute toxicity to fishes. Invertebrates are most vulnerable; mussels die at concentrations above 20 mg/l. Concentrations above 5 mg/l might affect phytoplankton. <ref>[http://www.pesticideinfo.org/Detail_Chemical.jsp?Rec_Id=PC33788 www.pesticideinfo.org August 20 2009]</ref>
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Bentazon has a low [[toxic|toxicity]] to most aquatic animals. Concentrations above 100 mg/l cause acute toxicity to fishes. Invertebrates are most vulnerable; mussels die at concentrations above 20 mg/l. Concentrations above 5 mg/l might affect phytoplankton<ref>[http://www.pesticideinfo.org/Detail_Chemical.jsp?Rec_Id=PC33788 www.pesticideinfo.org August 20 2009]</ref>.
 
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Revision as of 12:51, 2 October 2009

Definition of bentazon:
Bentazon is a herbicide used in agriculture for selective post-emergence control of many broad leaf weeds in soybeans, rice, corn, peanut, mint, dry bean, dry peas and succulent lima bean plantations[1].
This is the common definition for bentazon, other definitions can be discussed in the article


Notes

Bentazon
Bentazon
Formula
C9H12N203S

Bentazon is expected to enter the surface water by run-off from application sites. It has a moderate water solubility of 500 mg/l and a low tendency to adsorb to soils and sediments. In water it can be rapidly broken down by sun light (photodegradation). It can also be biodegraded. Its environmental half-life varies between 24 hours and 4 months, depending on the environmental conditions[2] [3].

It has a very low a tendency to bioaccumulate.

Bentazon has a low toxicity to most aquatic animals. Concentrations above 100 mg/l cause acute toxicity to fishes. Invertebrates are most vulnerable; mussels die at concentrations above 20 mg/l. Concentrations above 5 mg/l might affect phytoplankton[4].


Environmental standards and legislation

Included in the water framework list of priority substances


References