Community-Engaged Use of Low-Cost Sensors to Assess the Spatial Distribution of PM2.5 Concentrations across Disadvantaged Communities: Results from a Pilot Study in Santa Ana, CA.

PM2.5 is an air pollutant that is widely associated with adverse health effects, and which tends to be disproportionately located near low-income communities and communities of color. We applied a community-engaged research approach to assess the distribution of PM2.5 concentrations in the context of community concerns and urban features within and around the city of Santa Ana, CA. Approximately 183 h of one-minute average PM2.5 measurements, along with high-resolution geographic coordinate measurements, were collected by volunteer community participants using roughly two dozen low-cost AtmoTube Pro air pollution sensors paired with real-time GPS tracking devices. PM2.5 varied by region, time of day, and month. In general, concentrations were higher near the city's industrial corridor, which is an area of concern to local community members. While the freeway systems were shown to correlate with some degree of elevated air pollution, two of four sampling days demonstrated little to no visible association with freeway traffic. Concentrations tended to be higher within socioeconomically disadvantaged communities compared to other areas. This pilot study demonstrates the utility of using low-cost air pollution sensors for the application of community-engaged study designs that leverage community knowledge, enable high-density air monitoring, and facilitate greater health-related awareness, education, and empowerment among communities. The mobile air-monitoring approach used in this study, and its application to characterize the ambient air quality within a defined geographic region, is in contrast to other community-engaged studies, which employ fixed-site monitoring and/or focus on personal exposure. The findings from this study underscore the existence of environmental health inequities that persist in urban areas today, which can help to inform policy decisions related to health equity, future urban planning, and community access to resources.

Addressing health care needs of the Latino community: one medical school's approach.

The Program in Medical Education for the Latino Community (PRIME-LC) at the University of California-Irvine (UCI) School of Medicine was designed to improve health care delivery, research, and policy in underserved Latino communities. Specialized training develops strongly committed physicians with linguistic skills and cultural understanding, enabling them to serve Latino patients. Presently, the health care system's shortage of providers with this expertise renders it unable to address the Latino community's needs adequately. The UCI School of Medicine realized they were proposing a radically different type of program at the onset of this project -- one designed to address the health care needs of a specific ethnic group. Developed with dual goals, PRIME-LC aspires to provide the Latino community with culturally sensitive, Spanish-speaking physicians who are well aware of medical and social conditions prevalent among Latinos, in addition to physicians with a broad understanding of community medicine who are well versed in advocacy and able to become leaders within and outside the Latino community. PRIME-LC must be placed within the context of predicted physician shortages in the United States attributable to the projected population increase in general and, more specifically, within the context of a growing Latino population nationwide. As medical schools prepare to increase their output, programs like PRIME-LC that address society's special needs deserve serious consideration.

A study of the physician workforce supply for the latino population in California.

PURPOSE: To determine the physician supply during two decades to the workforce available to California Latinos from two separate training tracks at the University of California, Irvine School of Medicine (UCI)--the Fifth Pathway Program (FPP) and the traditional medical school curriculum. METHOD: In 2002, the authors compared two groups of physicians practicing in California to ascertain the percentage of Latino patients in their practices. One group had completed the FPP (n = 229) during the period 1971-1991, and UCI graduates from the same period composed the second group (n = 960). The authors also examined Latino population statistics for California communities where physicians located their practices. RESULTS: Both groups practiced in California (71.5%) and in primary care (59.9%) at the same rates. Women were underrepresented among FPP physicians (12.2% versus 33.3%). FPP physicians self-reported seeing significantly more Latino patients (14.3% versus 9.2%; P < .001). However, the groups did not significantly differ in the rates at which they practiced in communities with 40% or more Latino residents (18.1% versus 12.9%). CONCLUSIONS: Reactivating the FPP may increase the raw number of physicians in California, but two decades of this program did not recruit physicians to practice in California's Latino community at a rate much above that for traditional medical school graduates, especially for communities having the highest Latino population densities.