Which department manages environmental systems in a hospital according to established standards?

The department that manages environmental systems in a hospital according to established standards is facilities maintenance. This department is responsible for ensuring that the physical environment of the hospital is safe, efficient, and compliant with regulatory codes. This includes managing systems like HVAC (heating, ventilation, and air conditioning), water supply, waste management, and other critical infrastructure that supports patient care and safety. By maintaining these systems, facilities maintenance helps to ensure that the hospital operates smoothly and provides a healthy environment for patients, visitors, and staff.

The other departments listed have distinct responsibilities that do not include the management of environmental systems. Diagnostic imaging focuses on medical imaging technologies, emergency services deals with urgent patient care, and human resources is centered around workforce management and employee relations.