The potential for a given pesticide to contaminate groundwater depends on:

The potential for a given pesticide to contaminate groundwater depends on:

• A. It's ability to move in the soil
• B. It's persistence
• C. It's solubility
• D. All of the above

Answer: (D)

Groundwater contamination potential comes from how much a pesticide can move through soil, how long it lasts in the environment, and how easily it dissolves in water. If a pesticide can move readily through soil (high mobility), it can travel with infiltrating water toward groundwater. If it persists for a long time, it remains present long enough to reach groundwater before it breaks down. If it is highly soluble, more of it dissolves in water and can be carried downward with percolating moisture. When all three factors are present—high mobility, persistence, and solubility—the risk of groundwater contamination is greatest. Conversely, a pesticide that binds tightly to soil or degrades quickly has a lower risk, even if one property seems favorable. In practice, the combination of these properties determines the potential for groundwater contamination.

Groundwater contamination potential comes from how much a pesticide can move through soil, how long it lasts in the environment, and how easily it dissolves in water. If a pesticide can move readily through soil (high mobility), it can travel with infiltrating water toward groundwater. If it persists for a long time, it remains present long enough to reach groundwater before it breaks down. If it is highly soluble, more of it dissolves in water and can be carried downward with percolating moisture. When all three factors are present—high mobility, persistence, and solubility—the risk of groundwater contamination is greatest. Conversely, a pesticide that binds tightly to soil or degrades quickly has a lower risk, even if one property seems favorable. In practice, the combination of these properties determines the potential for groundwater contamination.