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Pesticides in air and in precipitation and effects on plant communities

Table of contents

Executive summary
 
Dansk sammendrag
 
1 Introduction
 
2 Materials and methods
2.1 Test system
2.1.1 Volatilisation chamber
2.1.2 System set-up
2.2 Performance of the test
2.2.1 Chemicals and standards
2.2.2 Preparation and spiking of the samples
2.2.3 Sample preparation
2.2.4 GC-MS-SIM analysis
 
3 Results
3.1 Pre-test of the experimental set-up
3.2 Results of the experiments in a short volatilisationchamber after 24 hours
3.2.1 Volatilisation of MCPP-P applied to filter paper at different concentrations
3.2.2 Volatilisation of lindane applied to filter paper at different concentrations
3.2.3 Volatilisation of MCPP methyl and lindane applied to different artificial surfaces and at different airflows
3.3 Results of volatilisation of lindane and MCPP methyl in a "longer and lower" volatilisation chamber
3.3.1 Volatilisation of lindane and MCPP methyl applied at recommended dose during an experimental test of 30 hours
3.3.2  Volatilisation of lindane and MCPP methyl at different temperatures
3.3.3 Volatilisation of lindane and MCPP methyl applied at two different doses
3.3.4 Volatilisation of lindane and MCPP methyl at different air flow
3.3.5 Volatilisation of lindane and MCPP methyl applied to different surfaces
 
4 Discussion
4.1  Estimation of volatility of pesticides based on physical/chemical parameters of the test substance
4.2 Experimental measurement of volatilisation of pesticides with special reference to lindane, MCPP-P and MCPP methyl
4.2.1 The German BBA test guideline
4.2.2  Experimental measurement and evaluation of selected factors influencing on the volatilisation, and of pesticides with special focus on MCPP-P, MCPP methyl, and lindane
4.3 Conclusions and suggestions for further validation work
   
5 References

 

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