By: Danielle Vienneau
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An Assessrnent of the Available Information on Environmental Impacts of Chernical Pesticides Used in the CARICOM States of the Caribbean Region By: Danielle Vienneau Submitted in partial fulfillrnent of the requirernents for the degree of Master of Environmental Studies at Dalhousie University Halifax, Nova Scotia July 18, 1997 @ Copyright by Danielle Vienneau, 1997 Nationai u~rary uiwnrneque nauur iaia 1*1 of Canada du Canada Acquisitions and Acquisitions et Bibliographic Services services bibliographiques 395 Wellington Street 395, nie Wellington Ottawa ON K1A ON4 OttawaON K1AON4 Canada Canada The author has granted a non- L'auteur a accordé une licence non exclusive licence ailowing the exclusive permettant a la National Library of Canada to Bibliothèque nationale du Canada de reproduce, loan, distribute or sell reproduire, prêter, distribuer ou copies of this thesis in rnicroform, vendre des copies de cette thèse sous paper or electronic formats. la forme de microfiche/film, de reproduction sur papier ou sur format électronîque. The author retains ownership of the L'auteur conserve la propriété du copyright in this thesis. Neither the droit d'auteur qui protège cette thèse. thesis nor substantial extracts fiom it Ni la thèse ni des extraits substantiels may be printed or otherwise de celle-ci ne doivent être imprimés reproduced without the author's ou autrement reproduits sans son permission. autorisation. 3.0 Country Information and Model Island Characteristics ............39 3.1 Introduction .............................................. 39 3.2 Summary of the CARICOM Countries .......................... 39 3.2.1 Climate .............................................39 3.2.2 Country Sire and Land Use ............................. 40 3.3.2 Agricultural Production .................................40 3.3.4 Irrigation ............................................ 45 3.3.5 Pesticide Use ........................................46 3.3.6Topography .......................................... 48 3. 4Barbados ................................................ 49 3.4.1 Location ............................................ 49 3.4.2Economy ............................................ 49 3.4.3Topography .......................................... 49 3.4.4 Geology, Soils and Vegetation ........................... 50 3.4.5 Land Use and Agriculture ............................... 51 3.5Jamaica ................................................. 51 3.5.1 Location ............................................ 51 3.5.2Economy ............................................ 52 3.5.3Topography .......................................... 52 3.5.4 Geology, Soils and Vegetation ........................... 52 3.5.5 Land Use and Agriculture ............................... 53 3.6St.Lucia ................................................ 53 3.6.1 Location ............................................ 53 3.6.2 Economy ............................................ 54 3.6.3Topography ..........................................54 3.6.4 Geology, Soils, and Vegetation ........................... 54 3.6.5 Land use and Agriculture ............................... 55 3.7TrinidadandTobago ......................................56 3.7.1 Location ............................................ 56 3.7.2Economy ............................................ 56 3.7.3Topography .......................................... 56 3.7.4 Land Use and Agriculture ............................... 57 3.8 Cornparison and Conclusion ................................. 57 4.0 Literature Review of Pesticide Impacts in the CARICOM ........... 62 4.1 Introduction .............................................. 62 4.2 Water and Sediment ....................................... 62 4.3Soil ....................................................66 4.4Air ....................-................................67 4.5Biota ................................................... 67 4.5.1 Aquatic Organisms ....................................67 4.5.2 lnsects ............................................. 71 4.5.3 Plants .............................................. 72 4.5.4 Wildlife ............................................. 73 4.5.5 Humans ............................................ 74 4.6 Laboratory Studies ........................................75 4.7 Knowledge. Attitudes. Practices and Beliefs ..................... 76 4.8 Conclusion ..............................................81 5.0 Model lsland analysis of the transport, fate and effects of pesticides in the Caribbean ................................... 85 5.1 Introduction .............................................. 85 5.2 Definition of Models ........................................ 85 5.2.1 Predictive or Mathematical Models ........................ 86 5.2.2 The Model Island as a Representation ..................... 86 5.3 Criteria for Understanding Environmental Impacts ................ 88 5.3.1 Transport (Soil) .......................................88 5.3.2 Transport (Water) ..................................... 89 5.3.3 Transport (Air) ........................................ 89 4.3.4 Transport (Biota) ...................................... 89 5.3.5 Fate (Soil) ........................................... 90 5.3.6 Fate (Water) ......................................... 90 5.3.7 Fate (Air) ............................................ 90 5.3.8 Fate (Biota) .......................................... 91 5.3.9 Effects .............................................. 91 5.4 The Model Island Analysis- Available Data ...................... 92 5.4.1 Transport (Soil) ....................................... 92 5.4.2 Transport (Water) ..................................... 92 5.4.3 Transport (Air) ........................................ 92 5.4.4 Transport (Biota) ...................................... 93 5.4.5 Fate (Soil) ........................................... 94 5.4.6 Fate (Water) ......................................... 94 5.4.7 Fate (Biota) .......................................... 95 5.4.8 Effects (Soil) ......................................... 96 5.4.9 Effects (Water) ....................................... 96 5.4.1 0 Effects (Biota) ....................................... 96 5.5 Conclusions of Model Analysis ............................... 98 6.0 Discussion and Conclusions .................................100 6.1 Introduction ............................................. 100 6.2 The Literature Search Process ..............................100 6.3 Pesticides of Concern in the Caribbean .......................101 6.4 Summary of Findings .....................................111 6.4.1 Question One ........................................112 6.4.2 Question Two ........................................114 6.4.3 Question Three ....................................... 116 6.5 Knowledge, Attitudes, Practices and Beliefs .................... 117 6.6 Public Awareness Campaigns ............................... 118 6.7Conclusion ............................................. 119 7.0Recommendations ......................................... 120 7.1 The Literature Search ..................................... 120 7.2 Pesticides of Concern in the Caribbean ....................... 120 7.3 Summary of Findings ..................................... 121 7.4 Knowledge. Attitudes. Practices and Beliefs .................... 122 Appendix 1: Information on selected pesticides of concern .............. 123 Appendix 2: Information Sources .................................. 143 Appendix 3: Letter of Introduction .................................. 151 Appendix 4: Website Information .................................. 154 Appendix 5: List of pesticides imported into various CARICOM Islands in19951996 ............................................... 157 Appendix 6: List of Active lngredients Found in the Caribbean ........... 188 Appendix 7: Concentrations (ppb) of pesticides and PCBs in water aroundSt.Lucia ............................................ 197 Appendix 8: Pesticide concentrations (ugkg dry matter) in sediment samples in Jamaica ......................................... 198 Appendix 9: Pesticide concentrations (ppb) in surface water samples in Jamaica ................................................... 199 Appendix 10: Pesticide concentration (ppb) in g roundwater sam ples in Jamaica ................................................... 200 Appendix 11: Concentrations (ppb) of alpha.. betaendosulfan and endosulfan sulfate in waters and sediment of several Jamaican Rivers . 201 Appendix 12: Mean concentration of organochlorine residues in water and sediment in the Hope watershed. Jamaica 1989-1991 ........... 202 Appendix 13: Summary of data on insecticide residues in water and sediment in Kingston Harbour July- August 1992 ................... 204 Appendix 14: Residues by location and cornmodity in Jamaica. 1985 ...... 205 Appendix 15: Average atrazine concentrations (ug/L) found in the Bell and Hampton Catchments from December 1988 to June 1991 ........ 206 vii List of Tables Table 1 List of pesticides and target pests .............................11 Table 2 List of CD ROM databases searched at Dalhousie University andNSAC.................................................... 29 Table 3 List of information sources in St . Lucia......................... 33 Table 4 List of information sources in Trinidad ......................... 34 Table 5 List of information sources in Barbados........................ 35 Table 6 1994 Land use (1 000 ha) information for the CARICOM Islands ..... 41 Table