It is hard to prove that worker illness is a result of pesticide exposure in the field because other things, both on and off the job, can trigger physical symptoms, said Dr. Suzanne Wuerthele, an EPA toxicologist in Denver.
It is hard to prove because scientists are lazy and come up with conflicting results.
mnli hypothesis: It is hard to prove because scientists are lazy and come up with conflicting results. premise: It is hard to prove that worker illness is a result of pesticide exposure in the field because other things, both on and off the job, can trigger physical symptoms, said Dr. Suzanne Wuerthele, an EPA toxicologist in Denver.