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| Web URL(s): | http://usgatero.msu.edu/v01/n14.pdf
Last checked: 11/2002
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Haith, Douglas A. |
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| Author Affiliation: | Haith: Professor, Biological and Environmental Engineering, Cornell University, Ithaca, NY |
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| Title: | Modeling pesticide volatilization from turf |
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| Source: | USGA Turfgrass and Environmental Research Online. Vol. 1, No. 14, September 15 2002, p. [1-7]. |
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| Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Pesticides; Volatility; Environmental protection; Chemical control; Pesticide fate; Transport (chemical); Mathematical equations; Computer modeling; Evapotranspiration; Pesticide residues; Health; Risk assessment; Bendiocarb; Carbaryl; Chlorpyrifos; Diazinon; Ethoprophos; Isofenphos
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| Trade Names: | Turcam; Sevin; Dursban; Mocap; Oftanol |
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| Abstract/Contents: | "A key requirement in protecting the environment while using chemical pest control is the ability to predict what happens to pesticides after their application to the turf. Researchers at Cornell University are investigating chemical dissipation after application in an effort to develop models that will predict volatilization. The most useful tools for predicting chemical behaviors in the environment are "fate and transport" models. These are mathematical equations of chemical transformations and transport that are converted into computer programs which can be run for any chemical or site of interest. The ET model was tested using data from field turf experiments conducted at the University of Massachusetts Turfgrass Research Center. Testing data included the measured concentrations of volatile residues following application of pesticides in 11 experiments conducted in the 1995-97 growing seasons. In general, the model appears to be most applicable to those chemicals that have the largest volatilization losses (diazinon, ethoprop, chlorpyrifos). This conclusion is qualified somewhat by the substantial over-preduction of ethoprop vaporization. The results were also relatively good for the two chemicals with moderate volatilization, bendiocarb (1.63%) and isofenphos (1.53%), although the predicted isofenphos mean was only 63% of the observed value, this work demonstrates that using an ET-based model to predict volatilization losses of turfgrass pesticides is feasible. It also demonstrates that by using a simple chemical property, such as vapor pressure, hazard quotients can be estimated for turfgrass pesticides that accurately rank their health hazards." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other Reports from this USGA research project: 1998-41-149 |
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| Note: | Pictures, b/w
Tables
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Summary as abstract |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Haith, D. A. 2002. Modeling pesticide volatilization from turf. USGA Turfgrass Environ. Res. Online. 1(14):p. [1-7]. |
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| Web URL(s):
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Last checked: 11/2002
Requires: PDF Reader |
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