What is pesticide drift ?
https://www.adamsonlab.com/what-is-pesticide-drift/
The spread of pesticides from the area of application to surrounding areas via air is known as pesticide drift. This drift can occur during the application of pesticides through particles in the air or after the application when certain pesticides convert into vapors that disperse in the surrounding areas. Adamson Analytical Laboratories can perform pesticide residue testing of over 700+ chemicals with our multi-method.