Input of trichloroacetic acid into the vegetation of various climate zones––measurements on several continents
| Autor: | Christian A. Lange, Matthias Nüchter, Andrea Pfennigsdorff, Klaus Ullrich Seyfarth, E. Putz, Karsten Kotte, Nikolai Elansky, Gert Krüger, Ludwig Weissflog |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Insecticides
Environmental Engineering Perennial plant Climate Health Toxicology and Mutagenesis Biomonitoring Environmental Chemistry Trichloroethanes Trichloroacetic Acid Southern Hemisphere Atmosphere Ecology Public Health Environmental and Occupational Health Biogeochemistry General Medicine General Chemistry Vegetation South America Pinus Pollution Europe Plant Leaves Atmospheric chemistry Environmental chemistry Africa North America Environmental science Environmental Pollutants Terrestrial ecosystem Oxidation-Reduction Environmental Monitoring Woody plant |
| Zdroj: | Chemosphere. 52:443-449 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/s0045-6535(03)00209-1 |
| Popis: | Trichloroacetic acid (TCA, CCl(3)COOH) is a phytotoxic chemical. Although TCA salts and derivates were once used as herbicides to combat perennial grasses and weeds, they have since been banned because of their indiscriminate herbicidal effects on woody plant species. However, TCA can also be formed in the atmosphere. For instance, the high-volatile C(2)-chlorohydrocarbons tetrachloroethene (TECE, C(2)Cl(4)) and 1,1,1-trichloroethane (TCE, CCl(3)CH(3)) can react under oxidative conditions in the atmosphere to form TCA and other substances. The ongoing industrialisation of Southeast Asia, South Africa and South America means that use of TECE as solvents in the metal and textile industries of these regions in the southern hemisphere can be expected to rise. The increasing emissions of this substance--together with the rise in the atmospheric oxidation potential caused by urban activities, slash and burn agriculture and forest fires in the southern hemisphere--could lead to a greater input/formation of TCA in the vegetation located in the lee of these emission sources. By means of biomonitoring studies, the input/formation of TCA in vegetation was detected at various locations in South America, North America, Africa, and Europe. |
| Databáze: | OpenAIRE |
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