*Article* **Environmental and Patient Impact of Applying a Point-of-Care Ultrasound Model in Primary Care: Rural vs. Urban Centres**

**Francesc X Marín-Gomez 1,2,3,\*, Jacobo Mendioroz Peña 1,2, Vicenç Canal Casals 4, Marcos Romero Mendez 5, Ana Darnés Surroca 6, Antoni Nieto Maclino 7 and Josep Vidal-Alaball 1,2**


Received: 21 April 2020; Accepted: 7 May 2020; Published: 11 May 2020

**Abstract:** Motor vehicles are a major contributor to air pollution, and the exposure to this human-caused air pollution can lead to harmful health effects. This study evaluates the impact of the provision of point-of-care ultrasounds (POCUS) by primary care (PC) to avoid the patient's need to travel to a specialized service. The study estimates the costs and air pollution avoided during 2019. The results confirm that performing this ultrasound at the point of care reduces the emission of 61.4 gr of carbon monoxide, 14.8 gr of nitric oxide and 2.7 gr of sulfur dioxide on each trip. During the study, an average of 17.8 km, 21.4 min per trip and almost 2000 L of fuel consumed in a year were avoided. Performing POCUS from PC reduces fuel consumption and the emission of air pollutants and also saves time and money. Furthermore, only 0.3% of the scans had to be repeated by radiologists. However, more studies with more participants need to be done to calculate the exact impact that these pollution reductions will have on human health.

**Keywords:** point-of-care systems; ultrasonography; traffic-related pollution; primary care
