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| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/1999/72340,%20U%20Florida, Snyder.PDF
Last checked: 04/09/2013
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Material Type: | Manuscript |
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| Monographic Author(s): | Snyder, George H.; Cisar, John L.; Borgert, Christopher |
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| Author Affiliation: | Snyder: University of Florida, IFAS, Everglades Research and Education Center, Belle Glade, FL; Cisar: University of Florida, IFAS, Ft. Lauderdale Research and Education Center, Ft. Lauderdale, FL; and Borgert: Applied Pharmacology and Toxicology, Inc. |
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| Monograph Title: | An Assessment of the Risks Associated with Pesticides Volatilized and Dislodged from Golf Turf: 1999 Annual Report, 1999. |
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| Publishing Information: | [Tallahassee, Florida]: University of Florida, IFAS |
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| # of Pages: | 13 |
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| Collation: | 10, 12, 15-16 pp. |
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| Abstract/Contents: | "Following laboratory studies to verify methodology, the concentration of ethoprop, fonofos, and isofenphos in air following application to a golf course fairway was determined. Although the weather was cloudy and rainy during the study, appreciable airborne pesticide residue was observed over a three-day measurement period. The highest concentration was found for ethoprop (20 μg m-3 on day 2). Fonofos has a maximum concentration of 5.9 μg m-3 on day 2, and isofenphos was 1.0 μg m-3 on day 3. Although there was a general trend for increasing concentrations of ethoprop on the morning of the second day after application and a decline thereafter, trends were less evident for the other two pesticides. The study will be repeated in 2000, and an assessment of risks to golfers from inhalation of these pesticides will be conducted using available USEPA chronic reference dose data. An assessment using isazophos volatized residues data from two previous studies indicated values exceeding the USEPA chronic reference dose for 18-19 hours after application. Of course, this assessment assumes inhalation of the residues by a golfer playing every day for 70 years. For a more realistic assessment, the risk can be reduced in proportion to the actual amount of exposure. A series of pesticide dislodgeability studies were conducted to evaluate the risks associated with golfer exposure to dislodged pesticides as a result of application to greens. The work, which was performed by Mr. Raymond H. Snyder as part of a master of science degree program at the University of Florida, involved 2,4-D, Dicamba, isazofos, chlorpyrifos, and fenamiphos. The full report of this work is contained in his M.S. thesis. Generally, the amount of pesticide dislodged decreased with time after application, and was greatly reduced following irrigation. By combining the data, risk assessment calculations could be made for various scenarios. The lowest risks were found for dicamba and chlorpyrifos. Even for fenamiphos, the pesticide from the group that posed the greatest risk from dislodgeable residues, little risk was calculated for a golfer who plays the day after pesticide application and irrigation everyday for 70 years. In the coming year, in addition to conducting a second pesticide volatilization study we anticipate making another evaluation of the ability of a Stabilized Organic Polymer (SOP) to reduced fenamiphos and fenamiphos leaching in a USGA green. The SOP was developed as part of a previous USGA project, and the University of Florida is pursuing a patent on this project." |
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| Language: | English |
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| References: | 7 |
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| See Also: | See also related sumary article, "An assessment of the risks associated with pesticides volatilized and dislodged from golf turf", 1999 Turfgrass and Environmental Research Summary [USGA], 1999, pp. 50-51, R=72340. R=72340 |
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| Note: | "Annual Report - November - 1999"
Tables |
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