Dabrowski, James M2015-11-132015-11-132015-01Dabrowski, JM. 2015. Development of pesticide use maps for South Africa. South African Journal of Science, Vol 111(1/2), pp 1-70038-2353http://www.sajs.co.za/development-pesticide-use-maps-south-africa/james-m-dabrowskihttp://hdl.handle.net/10204/8275Copyright: 2015. Academy of Science of South AfricaOver 3000 pesticides are registered for use in South Africa. Many studies have highlighted the movement of pesticides to agricultural crops from the point of application into non-target environments, particularly surface and groundwater resources. Exposure to pesticides can lead to serious human health and environmental effects. It is therefore important to identify critical areas where specific pesticides may result in a high risk of exposure to humans or the environment. Crop specific pesticide use data were obtained from a market research company and integrated into a geographical information system detailing the distribution of agricultural crops in South Africa as determined by an agricultural census performed in 2002. By estimating the total application of a specific pesticide to all crops produced in a magisterial district, it was possible to generate maps which provide an estimate of the application rate of over 200 pesticides per magisterial district. These maps were intersected with an agricultural land-cover map to provide a refined map giving details of the spatial distribution of pesticide use across the country. These maps are the first of their kind in South Africa and provide a spatial overview of the likely distribution of specific active ingredients based on the distribution of crops throughout the country. While there are a number of limitations and uncertainties associated with the data used to produce these maps, these are not unique to South Africa, and similar methodologies have been applied in more developed countries.enRisk assessmentAgricultural pesticidesHuman healthAquatic ecosystemsArticleDabrowski, J. M. (2015). Development of pesticide use maps for South Africa. http://hdl.handle.net/10204/8275Dabrowski, James M "Development of pesticide use maps for South Africa." (2015) http://hdl.handle.net/10204/8275Dabrowski JM. Development of pesticide use maps for South Africa. 2015; http://hdl.handle.net/10204/8275.TY - Article AU - Dabrowski, James M AB - Over 3000 pesticides are registered for use in South Africa. Many studies have highlighted the movement of pesticides to agricultural crops from the point of application into non-target environments, particularly surface and groundwater resources. Exposure to pesticides can lead to serious human health and environmental effects. It is therefore important to identify critical areas where specific pesticides may result in a high risk of exposure to humans or the environment. Crop specific pesticide use data were obtained from a market research company and integrated into a geographical information system detailing the distribution of agricultural crops in South Africa as determined by an agricultural census performed in 2002. By estimating the total application of a specific pesticide to all crops produced in a magisterial district, it was possible to generate maps which provide an estimate of the application rate of over 200 pesticides per magisterial district. These maps were intersected with an agricultural land-cover map to provide a refined map giving details of the spatial distribution of pesticide use across the country. These maps are the first of their kind in South Africa and provide a spatial overview of the likely distribution of specific active ingredients based on the distribution of crops throughout the country. While there are a number of limitations and uncertainties associated with the data used to produce these maps, these are not unique to South Africa, and similar methodologies have been applied in more developed countries. DA - 2015-01 DB - ResearchSpace DP - CSIR KW - Risk assessment KW - Agricultural pesticides KW - Human health KW - Aquatic ecosystems LK - https://researchspace.csir.co.za PY - 2015 SM - 0038-2353 T1 - Development of pesticide use maps for South Africa TI - Development of pesticide use maps for South Africa UR - http://hdl.handle.net/10204/8275 ER -