Reducing Pesticide Exposure in Children of Farmworkers
Author Information
Author(s): Beti Thompson, Gloria D. Coronado, Eric M. Vigoren, William C. Griffith, Richard A. Fenske, John C. Kissel, Jeffry H. Shirai, Elaine M. Faustman
Primary Institution: Fred Hutchinson Cancer Research Center
Hypothesis
A community-based intervention trial would result in lower pesticide exposure among farmworkers and their children, compared with a control group with no intervention.
Conclusion
The study found no significant decreases in urinary pesticide metabolite concentrations or in pesticide residue concentrations in house and vehicle dust from intervention community households compared with control community households after adjusting for baseline.
Supporting Evidence
- The median concentration of urinary metabolites was higher in year 4 than in year 1 for both adults and children.
- There were significant increases in urinary metabolites within both intervention and control communities.
- The dust residue data showed high percentages of pesticide detects in vehicles and house dust.
- Despite intervention efforts, pesticide exposure levels did not decrease as expected.
- Community engagement was a key component of the intervention strategy.
- Contamination between communities may have influenced the study outcomes.
- Children are particularly vulnerable to pesticide exposure due to their developmental stage.
- Future interventions may need to focus on more intensive, individualized approaches.
Takeaway
The study tried to help farmworkers and their kids avoid harmful pesticides, but it didn't work as planned, and kids were still exposed to the same or more pesticides.
Methodology
A randomized community intervention trial with baseline and follow-up surveys, urine and dust sample collections from farmworkers and their children.
Potential Biases
There may have been contamination between intervention and control communities, affecting the results.
Limitations
The study faced potential contamination between intervention and control communities and relied on cross-sectional data which may not capture long-term effects.
Participant Demographics
Participants were primarily Hispanic farmworkers and their children aged 2-6 years in the Yakima Valley.
Statistical Information
P-Value
p = 0.21
Statistical Significance
p < 0.005
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website