According to a new study from the American Journal of Respiratory and Critical Care Medicine, 25,814 farm women were tested for a link between their exposure to agricultural chemicals and adult onset of allergy-related asthma. The results showed that farm women who directly handled the chemicals had a 50 percent higher chance of developing this type of asthma.
Of the approximately 30 insecticides, herbicides and fungicides tested, at least 10 were found to significantly increase the risk. Read more here and here.