Photodegradation of chlorinated pesticides dispersed on sand
| Autor: | M. Jacquet, Abdennour Zertal, Tahar Sehili, Bernadette Lavédrine |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Pollution
Environmental Engineering Light Photochemistry Health Toxicology and Mutagenesis media_common.quotation_subject MCPA Gas Chromatography-Mass Spectrometry chemistry.chemical_compound Adsorption Hydrocarbons Chlorinated Environmental Chemistry Vinclozolin Pesticides Photodegradation Dichlorophen media_common Photolysis Chemistry Public Health Environmental and Occupational Health Environmental engineering General Medicine General Chemistry Pesticide Silicon Dioxide Environmental chemistry Microscopy Electron Scanning Degradation (geology) |
| Zdroj: | Chemosphere. 58:1431-1437 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2004.09.085 |
| Popis: | The photochemical behaviour of several chlorinated pesticides, namely 4-chloro-2-methylphenoxyacetic acid (MCPA), dichlorophen (DCPH), flamprop-methyl (FPM) and vinclozolin (VCZ) is studied on various kinds of sand: Fontainebleau sand (almost pure silica), Touggourt sand (coloured sand from Sahara) and Jijel sand (dark marine sand). The photodegradation of MCPA is more rapid on Fontainebleau sand than on the two others, because the former is almost colourless pure silica and the others adsorb on the internal surface of the reactor. The degradation rate decreases in the order MCPA, DCPH, FPM, VCZ. The main products identified are 4-chloro-2-methylphenol with MCPA and reduction product with DCPH. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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