A plane flying over a field in California, when spraying crops like this there is a chance of pesticide drift, which can affect neighboring towns and residents with adverse reactions.
Tractor spraying pesticides, 2008
Pesticides in the United States are used predominantly by the agricultural sector,[ 1] but approximately a quarter of them are used in houses , yards , parks , golf courses , and swimming pools .[ 2]
^ Kellogg RL, Nehring R, Grube A, Goss DW, and Plotkin S (February 2000), Environmental indicators of pesticide leaching and runoff from farm fields Archived 2002-06-18 at the Wayback Machine . United States Department of Agriculture Natural Resources Conservation Service. Retrieved on 2007-10-03.
^ Miller GT (2004), Sustaining the Earth , 6th edition. Thompson Learning, Inc. Pacific Grove, California. Chapter 9, pp. 211–216.