Predictors of herbicide exposure in farm applicators

Abstract

Although similar domains of factors were associated with exposure in both models, the specific factors identified and the signs of the coefficients were sufficiently different between the final models for each herbicide that additional investigations appear to be warranted to determine the sources of the differences and assess the validity of the models and their ability to be generalised.

Indirect sources of herbicide exposure for families on Ontario farms

“…A consent form was signed by the families agreeing to participate and the protocol was approved by the research ethics board at the University of Guelph. Further details on the methods are provided in earlier papers (Arbuckle et al, 1999a(Arbuckle et al, , 2002(Arbuckle et al, , 2004. The field study period was May through July 1996 when MCPA or 2,4-D was used for the first time during the growing season by the participants in the study.…”

“…Previous analyses focused on measurement of 2,4-D residues in semen of applicators (Arbuckle et al, 1999a), identifying the main predictors of the applicator's exposure (Arbuckle et al, 2002) and the extent of children's exposure to these herbicides (Arbuckle et al, 2004). In the current analysis, we describe the results of environmental monitoring to measure indirect sources of exposure for a subset of the study population.…”

Environmental and biological monitoring for the identification of main exposure determinants in vineyard mancozeb applicators

“…In agricultural application of pesticides, exposure can occur during mixing and loading (MIX) of the formulation, application (APPL), and maintenance and cleaning (MTNT) of the equipment (16,17). Levels of exposure differ greatly between workers, depending on various determinants of exposure (16,(18)(19)(20).…”

“…Levels of exposure differ greatly between workers, depending on various determinants of exposure (16,(18)(19)(20). Performing field studies of occupational pesticide exposure in agriculture provides us with exposure measurements in real-life conditions of pesticide use.…”

“…Performing field studies of occupational pesticide exposure in agriculture provides us with exposure measurements in real-life conditions of pesticide use. The results of field studies help us identify the main determinants of exposure, analyse their relationship, and produce information necessary for preventive interventions (16,18). …”