The Associate Public Health Sanitarian Passbook® prepares you for your test by allowing you to take practice exams in the subjects you need to study. It provides hundreds of questions and answers in the areas that will likely be covered on your upcoming exam, including but not limited to: application of scientific principles and knowledge to public and environment health protection; microbiology as related to disease prevention and control, sanitary chemistry and toxic substances; public health and sanitary engineering including water sources; water treatment and control; pollution control and subdivision control; preparing written material; educating and interacting with the public; administrative supervision; and other related areas.