Which of the following describes what constitutes waste pesticides?

The concept of waste pesticides is best defined by items that are no longer usable or wanted. Pesticides become classified as waste for several reasons, including expiration, effectiveness loss, improper formulation, damage to the container, changes in regulations, or simply when they are no longer needed for their intended purpose. This understanding is critical for proper disposal methods, ensuring that waste pesticides do not harm the environment or public health.

In contrast, correctly stored pesticides that are still within their expiration dates are not considered waste, as they can still be effectively used. Pesticides that can be sold to other users are also not waste; they retain value and usability. Newly acquired pesticides intended for immediate use likewise do not qualify as waste because they are still in their prime operational state.