Analysis of Exposure Differences for Traditional and Organic Farmers. P. Visuthismajarn and C. Siriwong, Prince of Songkla University, Thailand
Exposure analysis of traditional and organic farmers is carried out in Thailand. Organophosphate and Carbamate are heavily used by traditional farmers in the South. Questionnaire and observation in the field are being conducted to analyse their exposure. Traditional farmer shows higher exposing to pesticide than the organic farmer. After expose with these pesticide, there are numerous diverse and related to broad spectum to metabolic and behavioral in enzyme production, growth, reproduction activity, production of tumors and teratogenic effect. Among these key issues for this analysis is how to evaluate and present information for exposures to organophosphate and carbamate by inhalation, dermal contact and ingestion in ways that can focus subsequent risk redution measures on the dominant hazards considering the most likely exposure routes. Approaches for addressing Cholinesterase (ChE) of farmer’s blood combined with the toxicity-based bench marks to define exposure pathways and risk characterization. Cholinesterase is founded in lower levels from traditional than organic farmers indicating of the high risk group. The result is in corresponding with the contaminant data in vegetables of the traditional farm. Behavioral of using pesticide shows area-specific hazard profiles that can be used to guide risk reduction measures for the Thai farmers.
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