Final answer:
An intervention is an action taken to improve health and safety outcomes, including a range of strategies from educational programs to policy changes.
Step-by-step explanation:
A specific action intended to improve health and safety outcomes is known as an intervention. Interventions are deliberate actions taken to prevent or treat a problem or to improve a situation. In the context of environmental health, interventions often aim to reduce exposure to hazardous conditions and promote behaviors that improve health outcomes.
For example, the removal of lead from gasoline is an intervention that decreased childhood lead exposure and consequently contributed to a reduction in crime. Interventions can be diverse, ranging from educational programs to policy changes like market incentives for pollution control, or command-and-control regulations like setting national standards for water quality by the EPA.