Use of historical mapping to understand sources of soil-lead contamination: Case study of Santa Ana, CA

This paper investigates the historical sources of soil-lead contamination in Santa Ana, California. Even though dangerous levels of soil-lead have been found in a wide variety of communities across the United States, public health institutions lack clarity on the historical origins of these crises. This study uses geo-spatial data collected through archival research to estimate the impact of two potential sources of lead contamination in the past -- lead-paint and leaded gasoline. It examines, through a combination of statistical and historical methods, the association between lead concentrations in contemporary soil samples and patterns in the evolution of the city's physical features, such as the growth of urbanized areas and the historical flow of traffic. We emphasize the value of historical data collected through archival research for understanding the sources of environmental lead, particularly leaded gasoline, which our study found to be the most likely and most prominent contributor to soil-lead in Santa Ana's environment. This research contributes to environmental-justice advocacy efforts to reframe lead poisoning as a systemic environmental issue and outlines the path forward to community-level remediation strategies.

Occupational health within the bounds of primary care: Factors shaping the health of Latina/o immigrant workers in federally qualified health centers

BACKGROUND

Many workers seek care for work-related medical conditions in primary care settings. Additionally, occupational medicine training is not consistently addressed in primary care professional training. These patterns raise concerns about the health outcomes of low-wage Latina/o immigrant workers who make use of primary care settings to obtain care for work-related injuries and illnesses. The objective of this qualitative study was to investigate how primary care clinicians assessed and addressed the role of occupational exposures on the health and well-being of Latina/o immigrant workers.

METHODS

We conducted semistructured in-depth interviews with 17 primary care clinicians (physicians, resident physicians, and nurse practitioners) employed in an urban federally qualified health center (FQHC) with two sites located in Orange County, CA.

RESULTS

Using a constructivist grounded theory approach, we determined that primary care clinicians had a general understanding that employment influenced the health and well-being of their Latina/o immigrant patients. Clinicians delivered care to Latina/o immigrant workers who feared reporting their injury to their employer and to Latina/o immigrants whose workers' compensation claim was terminated before making a full recovery. Clinicians were responsive to patients' work-related concerns and leveraged the resources available within the FQHC. Although some clinicians offered suggestions to improve occupational health in the FQHC, a few clinicians raised concerns about the feasibility of additional health screenings and clinic-based interventions, and pointed to the importance of interventions outside of the healthcare system.

CONCLUSION

This study underscores the complexities of addressing occupational health concerns in urban FQHCs.

The State of Public Health Lead Policies: Implications for Urban Health Inequities and Recommendations for Health Equity

Although lead has been removed from paint and gasoline sold in the U.S., lead exposures persist, with communities of color and residents in urban and low-income areas at greatest risk for exposure. The persistence of and inequities in lead exposures raise questions about the scope and implementation of policies that address lead as a public health concern. To understand the multi-level nature of lead policies, this paper and case study reviews lead policies at the national level, for the state of California, and for Santa Ana, CA, a dense urban city in Southern California. Through a community-academic partnership process, this analysis examines lead exposure pathways represented, the level of intervention (e.g., prevention, remediation), and whether policies address health inequities. Results indicate that most national and state policies focus on establishing hazardous lead exposure levels in settings and consumer products, disclosing lead hazards, and remediating lead paint. Several policies focus on mitigating exposures rather than primary prevention. The persistence of lead exposures indicates the need to identify sustainable solutions to prevent lead exposures in the first place. We close with recommendations to reduce lead exposures across the life course, consider multiple lead exposure pathways, and reduce and eliminate health inequities related to lead.