In the DPSIR framework, which component represents the changes in environmental condition caused by pressures?

• A. Driving forces
• B. Pressures
• C. State
• D. Impact

Answer: (C)

In this framework, the part that captures how the environment changes under stress is the state. It describes the actual condition of environmental attributes at a given time, such as water quality, climate variables, or biodiversity. Pressures are the human activities or forces that push the environment to change, like pollution discharge or land-use change. So, when pressures act, the resulting changes in environmental condition—how clean or degraded, how nutrient-rich, how altered the ecosystem is—are reflected in the state. For example, fertilizer runoff (a pressure) can raise nutrient levels and turbidity in a stream, changing its state. Driving forces are the underlying socioeconomic factors that drive pressures, while impact refers to the consequences of the changed state on ecosystems or people.