A pesticide that remains active in the environment for extended periods is referred to as what type of pesticide?

A pesticide that remains active in the environment for an extended period is classified as a persistent pesticide. This characteristic means that the chemical does not break down easily and can have lasting effects on the ecosystem, potentially impacting non-target organisms and water sources. Persistent pesticides can accumulate in the soil or water, leading to long-term exposure risks.

In contrast, other types of pesticides, such as degradable ones, are designed to break down more quickly, reducing their longevity and potential environmental impact. Volatile pesticides tend to evaporate rapidly into the atmosphere, which also reduces their environmental residence time. Systemic pesticides are absorbed and distributed throughout the plant, providing targeted control but are not inherently defined by their environmental persistence. Understanding these distinctions is crucial for effective pest management and minimizing ecological harm when selecting and applying pesticides.