CHED 217 |
| Pesticides play a significant role in agriculture and in maintaining our quality of life. However, most of these organic compounds are toxic and hazardous to wild-life and our health. They are known to cause cancer, attack the CNS and lead to an array of harmful physiological effects. It is important to exercise caution in their application since excessive use could threaten the quality of drinking water. Protecting water quality is a top environmental priority in today's continuously growing society. The objective of this investigation was to determine the levels of pesticides and organic semi volatiles, such as, polynuclear aromatic hydrocarbons, chlorinated hydrocarbons and phosphorous containing organic compounds, in rivers and tributaries surrounding the San Antonio metropolitan area. Pesticides were extracted from water samples by liquid-liquid extraction following a standardized procedure used by the Dos Rios water treatment plant. The organic extracts were filtered, concentrated and dried of water and analyzed by GC-MS |
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Undergraduate Research Poster Session: Analytical Chemistry
11:00 AM-1:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster
Division of Chemical Education |