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Pesticide drift refers to the unintentional diffusion of pesticides and the potential negative effects of pesticide application--including, but not limited to: off-target contamination due to spray drift as well as runoff from plants/soil[1]. This can lead to damage in human health, environmental contamination, and property damage [1] [2]. Contents 1 Types 2 Public concern 3 See also 4 References 5 Notes 6 See also 7 External links Types With placement (localised) spraying of broad spectrum pesticides, wind drift must be minimized, and considerable efforts have been made recently to quantify and control spray drift from hydraulic nozzles[3]. Conversely, wind drift is also an efficient mechanism for moving droplets of an appropriate size range to their targets over a wide area with ultra-low volume (ULV) spraying. Himel (1974) made a distinction between exo-drift (the transfer of spray out of the target area) and endo-drift, where the active ingredient (AI) in droplets falls into the target area, but does not reach the biological target. Endo-drift is volumetrically more significant and may therefore cause greater ecological contamination (e.g. where chemical pesticides pollute ground water). Public concern This section does not cite any references or sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. (March 2011) Although there has been much public concern and research into spray drift, several studies[which?] have concluded that point source pollution (e.g. pesticides entering bodies of water following spillage of concentrate or rinsate) can cause greatest environmental harm[citation needed]. See also Aerial application Environmental issues with agriculture Environmental protection Farmworker justice Nonpoint source pollution Pesticide Pesticide application References ^ a b "Pesticide Spray and Dust Drift". Pesticides: Topical & Chemical Fact Sheets. Environmental Protection Agency. http://www.epa.gov/opp00001/factsheets/spraydrift.htm. Retrieved 25 March 2011.  ^ "Community Guide to Recognizing and Reporting Pesticide Problems". Community Guide to Recognizing and Reporting Pesticide Problems. CA Dept. of Pesticide Regulation. http://www.cdpr.ca.gov/docs/dept/comguide/index.htm. Retrieved 25 March 2011.  ^ Hewitt, A.J., Spray drift: impact of requirements to protect the environment, Crop Protection 19 (2000) p 623-627 Notes Himel, C.M. (1974) Analytical methodology in ULV. In: Pesticide application by ULV methods British Crop Protection Council Monograph No. 11, 112-119. Matthews G.A. (2006) Pesticides: Health, Safety and the Environment Blackwell, Oxford See also Agricultural runoff Environmental justice Nonpoint source pollution External links EarthJustice - health impacts of pesticide drift in rural farming community Pesticide Action Network North America (PANNA)- "Advancing alternatives to pesticides worldwide" International Pesticide Application Research Centre (IPARC)