Funded Small Grant Projects

Alena Marie Uliasz and Savannah Mack answers questions about their research

2018–2019 Projects

Metal and Inorganic Particulates in the Lungs of California Agricultural Workers

Jayveeritz Bautista, Graduate Student, UC Davis

In the Central Valley of California, agricultural workers bear a greater risk for respiratory disease due to the exposure to an ample variety of airborne toxicants, especially inorganic minerals or metals. This research will determine the correlation of particle content and composition to observed lung damage. Through the implementation of these approaches, specific particle types based on elemental composition and the presence of metals will be compared to observed lung damage to evaluate whether specific particulates and metal-containing compounds produce unique pathological changes in the lungs of farmworkers.

A Qualitative Study of the Mental Health and Alcohol Use of Indigenous Mexican Farmworker Youth

Seth Holmes, PhD, UC Berkeley

While research indicates increased rates of alcohol misuse and mental health problems among Latino/a farmworkers, little research has focused on indigenous Mexican farmworkers. To explore the risk and protective factors affecting the alcohol misuse, anxiety disorders, and depression in this understudied population, this project proposes in‐depth ethnographic research including collaborative participant observation, interviews, and
videography among indigenous Mexican farmworkers as they migrate between California, Washington State, and southern Mexico. The insights from this approach will result in policy‐relevant recommendations to best address the unique health and safety needs of indigenous Mexican farmworkers.

Developing a Test Station to Evaluate Performance of Crush Protection Devices in Agricultural ATV Rollover Accidents

Farzaneh Khorsandi, PhD, UC Davis

A distressing number of All-Terrain Vehicle (ATV) rollover-related injuries and fatalities occur in the US agriculture sector. However, there is neither a practical solution for ATV rollover accidents nor standards for implementing the solution in the US. A properly designed and installed Crush Protection Device (CPD) is an intervention that may decrease agricultural ATV rollover-related injuries. This project will experimentally evaluate the performance of several CPDs in agricultural ATV rollover accidents.

Exploring Stressors and Psychological Distress of Hired Mexican Migrant Agricultural Workers in California

Alvaro Medel-Herrero, PhD, UC Davis

Agricultural workers experience high rates of stress-related psychiatric conditions and one of the highest suicide rates of any industry. Stressors and the psychological distress of agricultural workers are not well understood despite their importance. This study will explore and measure psychological distress of California hired Mexican migrant agricultural workers, analyze the access/utilization of mental health services, as well as identify relevant stressors via in-person interviews and information gathering information from 200 participants.


2017–2018 Projects

A Water Quality Assessment in a Farmworker Community

Marc Verhougstraete, PhD, University of Arizona

Southeastern Arizona is vital for the national production of livestock, hay, corn, pecans, beans, and cotton throughout the year. Despite this importance, those that are responsible for planting, maintaining, and harvesting these products do not have access to adequate potable water, adequate sewer services, and safe/sanitary housing conditions. This study investigated the presence of microbes and metals in an agricultural community’s drinking water and found that all metals and bacteria were below EPA safety thresholds. This project also included a survey of residents’ concern of drinking water quality. The majority of respondents did not think their household water was contaminated, but surprisingly, over half reported using bottled water as their primary drinking water source. Additional studies are underway or planned to continue to understand the community’s needs, evaluate water quality, and enhance infrastructure.

Leptospirosis Among California Agricultural Workers—A Silent Epidemic?

Alvaro Medel-Herrero, PhD, UC Davis

Leptospirosis, a bacterial infection that affects humans and animals, is primarily an occupational disease, disproportionally affecting farmers. Leptospirosis is a reemerging infection in California; half of California cattle herds have been estimated to be infected with Leptospira, which is a serious threat to farmworkers. Active epidemiological surveillance has been repeatedly recommended, but no studies on Leptospira seroprevalence have been conducted in California agricultural workers. The goal of this project is to estimate the prevalence of leptospirosis among agricultural workers in the Central Valley of California and its relation to main exposure factors, including demographic information, sanitary conditions, occupational history, and contact with livestock, stagnant water, and moist soil. Investigators plan to use a questionnaire to collect information on exposure factors. To estimate leptospirosis prevalence, biological samples will be collected. Investigators expect to find a relatively high prevalence and close relationships between leptospirosis and occupation, environment, and poverty. Work on this project is ongoing.

Farm Incubator Agricultural Safety Training

Nathan Harkleroad, Agriculture and Land-Based Training Association (ALBA)

ALBA is a non-profit organization based in the heart of the Salinas Valley, the ‘salad bowl of America.’ ALBA provides education and farm development opportunities to aspiring farmers—primarily immigrant farm laborers—on its 100 acres of certified organic farmland. WCAHS funding allowed ALBA to conduct ten worker safety workshops on topics including pesticide safety, tractor safety, heat illness prevention, and CPR. An estimated 80 participants comprised of aspiring farmers and ALBA staff participated in trainings. ALBA had 14 new farmers enter its Organic Farm Incubator in 2018. They received several workshops and tailgate trainings that included: pesticide safety, labor law, tractor safety, and CPR. All of them demonstrated the safe use of tractors and installed appropriate sanitations services for themselves and their families. A bilingual worker safety resource section for the ALBA’s website is underway and expected to be finalized in the coming months.

The Correlation of Metal-Specific Dusts to Lung Pathology in California Agricultural Workers 

Katie Edwards, Graduate Student, UC Davis

Agricultural workers in the Central Valley of California are exposed to a wide variety of airborne toxicants that place workers at increased risk for respiratory disease compared to the general population. Among these airborne toxicants are inorganic minerals (metals). This research examines whether metals present in the dust inhaled by farmworkers contributes to the observed lung damage. Lung tissue from 20 cases from the Fresno County Coroner’s Office are being analyzed. Analysis will determine lung damage, the quantity and identity of metals present in lung tissues, and whether metals of a specific type are associated with sites of lung tissue remodeling and fibrosis. Lung tissue analysis is ongoing.

Organizational Risk Factors for Sexual Harassment and the Consequences for Agricultural Work Teams

Monica Cooper, PhD, UC Davis

This project examined the relationship between incidence of sexual harassment, work team factors that facilitate sexual harassment, and the consequences for vineyard workers. Investigators surveyed 295 workers in Napa County. Of the female workers, 30% reported experiencing offensive comments, jokes, and gestures in their current employment. A further 9% of these women reported unwanted sexual attention and 2% reported sexual coercion. Consequently, harassed women were more likely to intend to leave their current jobs than non-harassed women. The harassment also had a negative effect on male co-workers, who were more dissatisfied with their jobs when working in a crew where sexual harassment occurred. Surveys indicated that younger women and seasonal workers may be particularly vulnerable to sexual harassment. Findings suggest that improvements to the structure and administration of sexual harassment trainings to agricultural workers should be explored and that sexual harassment should be addressed across the organization or the industry as a whole, rather than at the level of the work team that was the focus of this study.