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Community exposure to a paraquat drift
R G Ames1, R A Howd, L Doherty
1California Environmental Protection Agency, Office of Environmental Health Hazard Assessment, Berkeley.
Archives of Environmental Health
|January 1, 1993
Summary
Paraquat herbicide drift caused increased health symptoms, including cough, nausea, and breathing issues, in a nearby residential community. Researchers recommend avoiding paraquat spraying near populated areas to prevent adverse health effects.
Area of Science:
- Environmental Health
- Toxicology
- Public Health
Background:
- Paraquat herbicide application via helicopter occurred near a residential community.
- Drift from paraquat spraying led to resident complaints regarding potential health impacts.
Purpose of the Study:
- To investigate health consequences in residents exposed to paraquat drift.
- To assess the relationship between paraquat exposure and self-reported symptoms.
Main Methods:
- A community survey was conducted to collect self-reported health symptom data.
- Symptom rates in the exposed community were compared to historical control communities.
- Internal analysis examined symptom rates based on perceived paraquat exposure (odor).
Main Results:
- Ten symptoms, including cough, nausea, and wheezing, were significantly elevated in the exposed community (p < .05).
- Paraquat exposure, indicated by odor, was associated with significantly higher risks of fever (RR = 11.97) and nausea (RR = 3.75).
- Perception of paraquat odor correlated with reporting a higher number of symptoms.
Conclusions:
- Residents exposed to paraquat drift likely experienced an increase in health symptoms.
- It is recommended that paraquat spraying be avoided near residential communities to mitigate health risks.