What determines the potential for injury when using a pesticide containing glyphosate?

• A. acute effect minus the delayed effects
• B. concentration of the pesticide's active ingredient
• C. toxicity of the pesticide and length of exposure
• D. weather conditions during use

Answer: (C)

Potential for injury from a pesticide comes from a combination of how toxic the product is and how long you’re exposed to it. This reflects the idea that risk grows with greater inherent toxicity and with longer or more intense exposure. For glyphosate, the chemical is relatively low in human toxicity, so brief, properly controlled use with protective gear greatly reduces risk. But higher concentrations or longer exposure increase the chance and severity of adverse effects. Environmental factors like wind or drift can influence exposure, but the core drivers are the product’s toxicity and the duration of contact or inhalation.