| Environmental fate of chlorothalonil in a Costa Rican banana plantation. | |
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MedLine Citation:
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PMID: 17498771 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The environmental fate of chlorothalonil (CHT) and its metabolites were studied under field-variable conditions in a commercial banana plantation in Costa Rica. Weather conditions were representative of a tropical environment and the fungicide applications were typical of those in banana production. The test plots were treated with Bravo 720 at 1.2 l ha(-1) of formulated product. Field persistence of CHT in soil and on banana leaves was measured during five consecutive months and after three aerial applications of the fungicide. Residues were analyzed in soil, sediment, water, banana leaves and drift cards by gas and liquid chromatography coupled to mass spectrometry. In soil and on the surface of banana leaves, CHT dissipated rapidly with half-lives of 2.2 and 3.9 d, respectively. Soil residues persisted and were detected 85 d after application. The main metabolite found in soil, 4-hydroxy-chlorothalonil, accounted for approximately 65% of residues detected and was measured up to 6d after application. |
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Authors:
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Alicia Chaves; Damian Shea; W Gregory Cope |
Publication Detail:
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Type: Journal Article Date: 2007-05-10 |
Journal Detail:
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Title: Chemosphere Volume: 69 ISSN: 0045-6535 ISO Abbreviation: Chemosphere Publication Date: 2007 Oct |
Date Detail:
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Created Date: 2007-09-25 Completed Date: 2007-12-28 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0320657 Medline TA: Chemosphere Country: England |
Other Details:
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Languages: eng Pagination: 1166-74 Citation Subset: IM |
Affiliation:
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Department of Environmental and Molecular Toxicology, North Carolina State University, Campus Box 7633, Raleigh, NC 27695, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Agriculture* Costa Rica Environmental Monitoring* Fungicides, Industrial / analysis* Musa* / chemistry Nitriles / analysis* Plant Leaves / chemistry Soil / analysis Time Factors Tropical Climate |
| Chemical | |
Reg. No./Substance:
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0/Fungicides, Industrial; 0/Nitriles; 0/Soil; 1897-45-6/tetrachloroisophthalonitrile |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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