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Pesticides in streams and subsurface drainage water within two arable catchments in Denmark: Pesticide application, concentration, transport and fate
Table of Contents
Preface
Sammenfatning og konklusioner
Summary and conclusions
1 Introduction
1.1 Objectives
1.2 Background
2 Description of the two investigated catchments
2.1 Lillebæk on Funen
2.2 Odderbæk stream in northern Jutland
3 Methods
3.1 Field sampling and measurements
3.2 Laboratory analysis
3.2.1 Analysis of pesticides in water samples
3.2.2 Analysis of pesticides in sediment
3.3 Transport estimation and statistical analysis
4 Crop types and pesticide application in the catchments
4.1 Lillebæk catchment
4.2 Odderbæk catchment
5 Catchment hydrology
5.1 Lillebæk catchment
5.2 Odderbæk catchment
6 Pesticide occurrence and concentration in stream and drains in the Lillebæk catchment
6.1 Water and sediment samples collected from the monitoring stations in the Lillebæk catchment
6.2 Detection of pesticides in stream and sub-surface tile drainage water
6.3 Key pesticides detected in stream and drainage water
6.4 Pesticides in suspended sediment
6.5 Pesticides in streambed sediment
7 Pesticide occurrence and concentration in stream and drains in the Odderbæk catchment
7.1 Water and sediment samples collected from the monitoring stations in the Odderbæk catchment
7.2 Detection of pesticides in stream and subsurface tile drainage water
7.3 Key pesticides detected in stream and drainage water
7.4 Pesticides in suspended sediment
7.5 Pesticides in streambed sediment
8 Application and loss of pesticides in the Lillebæk catchment
8.1 Application and loss of pesticides in the upstream culverted sub-catchment
8.1.1 Application and loss of pesticides in the upstream sub-catchment
8.1.2 Total application, loss and loss ratio of the 18 pesticides applied in the upstream sub-catchment
8.1.3 Loss of ’old’ pesticides not applied within the upstream sub-catchment
8.1.4 Application and loss of key pesticides in the upstream sub-catchment during each quarter of the study period
8.1.5 Modeling pesticide loss from the upstream sub-catchment
8.2 Application and loss of pesticides in the Lillebæk catchment as a whole
8.2.1 Overall application of pesticides and total loss of pesticides
8.2.2 Application, loss and loss ratio of 18 pesticides applied in the Lillebæk catchment as a whole
8.2.3 Loss of ’old’ pesticides not applied within the Lillebæk catchment
8.2.4 Application and loss of key pesticides during each quarter of the study period in the Lillebæk catchment as a whole
8.2.5 Modeling pesticide loss from the entire Lillebæk catchment
8.3 Comparison of pesticide application and loss from the two sub-catchments in the Lillebæk catchment
8.4 Pesticide loss in the 4th quarter 2000
9 Application and loss of pesticides in the Odderbæk catchment
9.1 Application and loss of pesticides in the catchment
9.1.1 Applied amount and loss of pesticides
9.1.2 Total application, loss and loss ratio of the 18 pesticides applied in the sub-catchment
9.1.3 Loss of ’old’ pesticides not applied within the sub-catchment
9.1.4 Application and loss of key pesticides in each quarter of the study period
9.1.5 Modeling pesticide loss from the catchment
10 Linking application and hydrology in the catchment to pesticide concentration in stream water
10.1 Application of pesticides in the Lillebæk catchment in May/June 2000
10.2 Precipitation and discharge in Lillebæk during the investigated period
10.3 Concentration of the herbicide isoproturon at the two stream stations in Lillebæk
10.4 Concentration of the metabolite BAM at the two stream stations in Lillebæk
10.5 Concentration of the herbicide MCPA at the two stream stations in Lillebæk
10.6 Concentration of the herbicide Diuron at the two stream stations in Lillebæk
10.7 Concentration of the herbicide Terbuthylazine at the two stream stations
10.8 Concentration of the fungicide Fenpropimorph at the two stream stations
10.9 Concentration of the insecticide pirimicarb at the two stream stations
10.10 Mass-balance for pesticides in the two sub-catchments in Lillebæk
10.11 Concentration of pesticides during single storm events in the Lillebæk catchment
10.12 Concentration of pesticides during single storm events in the Odderbæk catchment
11 Comparison of pesticide fate in the two catchments and prediction of recurrence intervals for pesticide concentrations
11.1 Pesticide application
11.2 Pesticide detection and concentration in stream and tile drainage water
11.3 Pesticide loss
11.4 Prediction of recurrence intervals for different pesticide concentrations
12 References
Appendix 4.1
Appendix 4.2
Appendix 4.3
Appendix 6.1
Appendix 7.1
Appendix 8.1
Appendix 8.2
Appendix 9.1
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