Risks involved with the use of soil sterilants include:

Study for the Iowa Right-of-Way Herbicide Category 6 Exam. Discover flashcards and multiple choice questions, each accompanied by helpful hints and explanations. Prepare effectively for your certification!

The correct answer highlights a significant concern related to soil sterilants: their potential to move off-site and contaminate groundwater. Soil sterilants are designed to inhibit the growth of plants and can have a long-lasting impact on the soil environment. This means that if not managed properly, these chemicals can leach into the groundwater, posing risks to drinking water supplies and other environmental components.

In the context of herbicide application, understanding the mobility of these chemicals is critical for effective environmental management and compliance with safety regulations. It emphasizes the importance of applying these products in a manner that minimizes their movement away from the intended application site.

While damage to nearby trees with roots not entering the treated area and the toxicity of all soil sterilants to mammals are valid concerns, they do not encompass the broad and critical issue of groundwater contamination that is posed by the use of soil sterilants. Therefore, the focus on the movement of pesticides off-site into groundwater points to a fundamental risk that necessitates attention during planning and application activities.

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