Pest control operators: risk perception of the use of chlorpyrifos

Abstract

A questionnaire survey addressing the health symptoms and work practices of 31 Western Australian pest control operators who used chlorpyrifos was conducted. Task observations were also made. The operators reported that: all washed their hands when "dirty" or following a job; 58% spilt the concentrate at least once a week; 74% had recently spilt/splashed diluted chlorpyrifos in their eyes and 90% on their boots; and 52% believed that they would benefit from more education concerning chlorpyrifos. No significant adverse health symptoms were reported. Behavioural assessments showed that: all operators were exposed to chlorpyrifos; 26% were observed to wash their hands; 78% had a spill or splash; and 48% wore inappropriate or no gloves. A discrepancy therefore exists between operators' perceptions of risk and their actual exposure. In order to effectively reduce exposure, a change in the safety culture of organisations is required, for example, the implementation of an OHS management system.