Pap Smears and Pelvic Exams. The Pap smear is a screening test for cancer of the cervix, and for changes of the cells of the cervix that could lead to cancer. When: Routine screening is done every 3 years, beginning at age 21 and going until age 65. How: Please see below under Speculum exam.
Insecticides are commonly used in agricultural, public health, and industrial applications, as well as household and commercial uses (e.g., control of roaches and termites). The most commonly used insecticides are the organophosphates, pyrethroids and carbamates (Figure 1). The USDA (2001) reported that insecticides accounted for 12% of total pesticides applied to the surveyed crops. Corn and cotton account for the largest shares of insecticide use in the United States.
Herbicides are used to kill weeds and other undesirable plants. There are many different types of herbicides, all of which can be dangerous to humans or the environment if used irresponsibly. Paraquat, atrazine and Agent Orange are among the most well-known herbicides, but there are many others. Herbicides may cause harm by acute poisoning or long-term, cumulative exposure, with side effects ranging from mild to deadly. Understanding the side effects of herbicides can help to prevent unnecessary harm if you are exposed to these substances.