Approximately 53 million children and 6 million adults in the U.S. spend a significant portion of their days in more than 120,000 public and private school buildings. Many of these buildings are old, in poor condition, and may contain environmental conditions that pose increased risks to the health of children and staff. Reducing exposures to environmental hazards in schools can help children's health. Healthier school environments enable children to learn and produce more in the classroom which can improve their performance and achievements later in life. This brochure is designed to address some of the most common areas of environmental health concerns found in schools. It also provides one-stop access to learn some facts about these issues and the many existing low cost or no cost, affordable measures, programs and resources available to help prevent, reduce and resolve each of the highlighted environmental hazards. By completing the voluntary Quick Assessment activity provided near the end of this brochure, schools can determine which areas and programs will require more detailed attention. Additionally, by implementing the waste reduction and energy efficiency actions highlighted, schools can conserve valuable, financial resources. Energy efficiency is a powerful tool that can drastically cut short- and long-term operating costs. At least a ten percent energy savings can occur by implementing little to no-cost minimal actions and energy management practices. School districts can often leverage the opportunity created by energy efficiency upgrades to put in place building upgrades and practices that enhance the health and quality of students' learning environments. Some examples would include improved ventilation systems, moisture control, integrated pest management practices, and removal of PCB-containing lighting ballasts and building materials from school facilities. Another valuable cost savings tool for schools is waste reduction. Reusing or recycling materials can save schools money in the short term and also encourage environmentally conscious behavior among America's youth. Simple tasks like composting food or yard waste and reusing school supplies can help conserve valuable funds.