What level of dermal LD50 is associated with slightly toxic pesticides?

The dermal LD50 (lethal dose for 50% of the population via skin exposure) is a key indicator in determining the toxicity level of a pesticide. A slightly toxic pesticide is categorized with a dermal LD50 that is greater than 2000 mg/kg. This means that a higher quantity of the substance must be absorbed through the skin to reach a lethal dose for 50% of the test subjects, indicating lower toxicity compared to substances with lower LD50 values.

When determining toxicity levels, regulatory agencies use these LD50 values to classify the potential risks associated with pesticide exposure. Pesticides with LD50 values greater than 2000 mg/kg are considered to pose a lower risk to humans and animals when they come into contact with the skin, thus classifying them as slightly toxic. This classification helps inform usage guidelines and safety precautions for applicators and handlers.