Environmental determinants of health and disease are pervasive and integral to the assessment, diagnosis, intervention, planning, and evaluation components of nursing practice. However, environmental factors that affect health are commonly overlooked in routine patient assessments. When environmental health concerns are missed, an opportunity for prevention is lost, and public health is less well served.

Although not every illness has an environmental etiology, nearly everyone will have a health problem related to an environmental hazard for which evaluation or advice is appropriate in terms of good nursing practice. It is important in nursing practice to identify not only the hazards that contribute to a current diagnosis (e.g., exposure to lead-contaminated dust resulting in elevated blood lead levels, and outdoor ozone or indoor allergens exacerbating childhood asthma), but also those that have not yet caused illness but are amenable to intervention (e.g., friable asbestos, radon, formaldehyde gases from building materials, and carbon monoxide and nitrogen oxides from poorly ventilated furnaces). By taking a proactive approach, nurses can initiate preventive actions to abate hazards before they manifest as disease. Thus, consideration of environmental health concepts as a core nursing function will vastly strengthen nursing's contribution to disease prevention.