What does Environmental Health do? Environmental Health is concerned with protecting the public's health and preventing disease, primarily through the regulation of those public facilities which can adversely affect the public by improper safety and hygienic practices. In Yavapai County, some of the establishments we regulate include restaurants, bars and certain food processors; public and semipublic swimming pools; hotels and motels; and school grounds. Additionally, we respond to situations involving mosquitoes, rodents and other animals which may be capable of spreading disease. Historically, Environmental Health is the oldest component of the public health movement and continues to be part of the county’s efforts building and maintaining healthier communities.