What is the purpose of establishing buffer zones when applying pesticides near water bodies?

Establishing buffer zones when applying pesticides near water bodies is primarily aimed at preventing pesticide contamination of the water. These buffer zones act as a protective barrier, minimizing the potential for pesticide runoff and drift into aquatic environments. By creating a physical separation between the areas being treated and nearby water sources, buffer zones help safeguard aquatic ecosystems, which can be vulnerable to chemical exposure.

Incorporating buffer zones is crucial for protecting water quality and ensuring the health of aquatic organisms, as pesticides can have detrimental effects on fish, invertebrates, and other wildlife. This practice is not only beneficial for the environment but is often required by regulations to mitigate risks associated with pesticide application near water.