Implementing an Intervention to Reduce Heat Stress and Chemical Exposures

NCT ID: NCT06442969

Last Updated: 2025-11-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-06-07

Study Completion Date

2026-03-31

Brief Summary

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The investigators are studying the dangers that farmworkers face while working in the fields and at home. The investigators goals are:

1. Measure how much heat and chemicals farmworkers in Imperial County are exposed to.

The investigators will ask the participants to wear a special belt under their clothes during work to measure heat. The investigators will also put two small temperature monitors in the participant's home for a day. The investigators will collect a urine sample to check hydration, and also measure the participants height, weight, blood pressure, and some blood markers for diseases using a simple finger-prick test.

To measure chemicals, the investigators will give the participants a wristband to wear for a week and hang another in the participants home. The investigators will also collect dust from each participant's home with a vacuum. Then, the investigators will analyze everything at San Diego State University.

After collecting samples, a trained community health worker will ask the participants a few questions about their work, lifestyle, health symptoms, and any hazards they face. The investigators will meet the participants twice at their homes to distribute the tools which will later be collected. Once the tools are collected, the investigators will have the chance to follow up with the participants if they have any questions.
2. Provide help to lower heat and chemical exposure with the help of community health workers.
3. Measure heat and chemicals again using the same methods to see if the project made a difference.
4. Talk to participants about what they liked and how the investigators can make future projects better.

Detailed Description

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Conditions

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Dehydration Heat Stress

Keywords

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Farm worker Heat exposure Chemical exposure Agricultural worker Take-home exposure

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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All participants

All participants will receive the intervention

Group Type OTHER

Education and resources provided by community health workers

Intervention Type OTHER

The intervention will consist of implementing existing tools provided by EPA's Design for the Environment program, CalOSHA and NIOSH sector-specific guidance for agricultural workers, the Imperial County Department of Public Health and materials from California Department of Toxics Substances Control. The investigators will utilize and adjust existing educational tools such as the Heat Illness Prevention plan developed by CalOSHA. In addition to the educational materials, the investigators will give each farmworker cooling working gear to be worn during their work-shift with (specialized clothes that has been used in other occupational settings). The investigators will provide all participants with a low-cost fan filter, known as Corsi-Rosenthal box built jointly by the community health/research team to reduce chemicals at home, and a small A/C unit to reduce heat stress.

Interventions

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Education and resources provided by community health workers

The intervention will consist of implementing existing tools provided by EPA's Design for the Environment program, CalOSHA and NIOSH sector-specific guidance for agricultural workers, the Imperial County Department of Public Health and materials from California Department of Toxics Substances Control. The investigators will utilize and adjust existing educational tools such as the Heat Illness Prevention plan developed by CalOSHA. In addition to the educational materials, the investigators will give each farmworker cooling working gear to be worn during their work-shift with (specialized clothes that has been used in other occupational settings). The investigators will provide all participants with a low-cost fan filter, known as Corsi-Rosenthal box built jointly by the community health/research team to reduce chemicals at home, and a small A/C unit to reduce heat stress.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Currently living in Imperial County, California, USA
* Currently work in agriculture
* Plan on living in Imperial Valley for the next 6 months

Exclusion Criteria

* Not currently living in Imperial County, California, USA
* Not currently working in agriculture
* Not planning to live in Imperial Valley for the next 6 months
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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San Diego State University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Lideres Campesinas Imperial

El Centro, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Nicolas I Lopez-Galvez, PhD

Role: CONTACT

Phone: 858-292-1416

Email: [email protected]

Facility Contacts

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Brandon Toji

Role: primary

Alejandra Early

Role: backup

Other Identifiers

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HS-2024-0081

Identifier Type: -

Identifier Source: org_study_id