The most dependable and abundant source of iodide in the american diet is

I think the most dependable and abundant source of iodide in the American diet is fortified salt. Iodine is an important mineral element found some types of food. It is needed by the body as it helps in making thyroid hormones. These are hormones that controls the body's metabolism and many other functions. The hormones are also needed for proper brain and bone development during pregnancy and infancy.  

Long term continuous groundwater monitoring, especially with warning systems and anthropic activity monitors