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Investigation of Dissipation, Adsorption, Degradation, and Leaching of Triazophos Pesticide in Various Soils
- Source :
- Polycyclic Aromatic Compounds. 36:229-241
- Publication Year :
- 2015
- Publisher :
- Informa UK Limited, 2015.
-
Abstract
- This study concerns the investigation of dissipation, adsorption, and degradation of triazophos in different soils from Pakistan. These processes help in the disappearance of pesticide from the environment. Gas chromatography was used for dissipation and adsorption analysis while for degradation study mass spectrometer was used in addition of gas chromatography (GC-MS). The dissipation rate of triazophos in three different soils was 90% over 30 days with average half-life of 9.059 days. From dissipation study it was inferred that rate is variable in each soil due to climatic changes, soil nature and soil-pesticide interactions. Adsorption experiment has revealed that the adsorption of this pesticide to soil follows the pseudo first order kinetic model with rate constant value of 0.479/h and Freundlich isotherm with adsorption capacity of 1.832 mol/g. Degradation study has displayed two major metabolites, one is phosphorothioic acid, S-[2-[(1-cyano-1-methylethyl) amino]-2-oxoethyl] O,O-diethyl ester at ret...
- Subjects :
- 021110 strategic, defence & security studies
Polymers and Plastics
Chemistry
Organic Chemistry
0211 other engineering and technologies
02 engineering and technology
010501 environmental sciences
Pesticide
complex mixtures
01 natural sciences
Reaction rate constant
Adsorption
Environmental chemistry
Soil water
Materials Chemistry
Degradation (geology)
Freundlich equation
Gas chromatography
Leaching (agriculture)
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 15635333 and 10406638
- Volume :
- 36
- Database :
- OpenAIRE
- Journal :
- Polycyclic Aromatic Compounds
- Accession number :
- edsair.doi...........cfbf312c408a96d21495c58fc9cc76f1