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  2. Healthy School Environments

Environmental Health Threats Found at Schools

Learn about common environmental contaminants that could be found in the air, water, ground, or walls of school buildings, worsening the health of students and staff. Children compared to adults are especially vulnerable to these contaminants, as their bodies natural defenses are still growing, and their habits are more likely to increase their exposures.

On this page: 
  • Asbestos
  • Extreme Heat
  • Lead
  • Mercury
  • Mold
  • Noise Pollution
  • Polychlorinated Biphenyls (PCBs)
  • Radon
  • Sun Safety
  • Wildfire Smoke

Asbestos 

Public and non-profit private schools have distinct regulatory requirements to protect school children and school employees from asbestos exposure.

  • Learn about asbestos.
  • Learn about asbestos and school buildings.

Extreme Heat

Children are extra sensitive to high temperatures. Compared to adults, children spend more time outdoors, running, swimming, playing games and sports that expose them to high temperatures. Their bodies’ natural defenses and abilities to regulate heat are still developing, so the consequences of extreme heat can occur quickly, last longer and be more severe. 

  • Heat.gov
  • Protecting Children from Extreme Heat
  • Let's Talk about Heat Challenge

Lead

Lead can be found in all parts of our environment – the air, the soil, the water, and even inside buildings and homes. Lead is particularly dangerous to children and even low levels can result issues like behavior and learning problems, lowered IQ and Hyperactivity

  • Learn about lead.

Lead and Children:

  • Environmental health facts about children and lead exposure
  • Federal Action Plan to Reduce Childhood Lead Exposure
  • Protecting Children from Lead Exposures
  • Protecting children where they learn and play

Lead in Drinking Water:

  • Basic Information about Lead in Drinking Water
  • Lead Testing in School and Child Care Program Drinking Water Grant

Mercury

Mercury is dangerous, and mercury poisoning can affect the nervous system, lungs, and kidney. There are still many sources of mercury in schools today like glass thermometers or compact fluorescent light (CFL) bulbs.

  • Learn about mercury.
  • Case studies about mercury cleanups at schools.

Mold

Moisture control issues in school buildings can lead to mold. Molds produce allergens and irritants which cause allergic reactions and worsen asthma symptoms.

  • Learn about mold.
  • Mold and indoor air quality in schools.
  • Mold remediation in schools and commercial buildings.
  • Mold resources for schools and commercial buildings.

Noise Pollution

Children often participate in recreational activities that can harm their hearing. This could include band class, sporting events such as football or basketball games, concerts, fireworks, loud toys, video games and using high volume with headphones and audio devices.

  • Noise Pollution Materials for Kids and Teachers

Polychlorinated Biphenyls (PCBs)

PCBs are a chemical compound that used to be used in industrial and consumer products.  Although no longer commercially produced in the United States, PCBs may be present in products and materials produced before the 1979 PCB ban. There is potential widespread use of PCB-containing building materials in schools and other buildings constructed or renovated between about 1950 and 1979. PCBs are a probable human carcinogenic and can cause a variety of other health effects.

  • Learn about Polychlorinated Biphenyls (PCBs).
  • Learn about PCBs in building materials for school administrators, building owners and managers.

Radon

Radon is a natural, colorless, and odorless gas that comes from the ground and can leak and build up in buildings and homes. At certain levels it is known to cause lung cancer in people.

  • Learn about radon.
  • Learn about radon in schools.

Sun Safety

While some exposure to sunlight can be enjoyable, too much can be dangerous. Overexposure to ultraviolet (UV) radiation from the sun can result in a painful sunburn and lead to skin cancer and more. Children are particularly at risk. 

  • Learn about sun safety.

Wildfire Smoke

Children’s lungs are still growing and developing so they are especially vulnerable to smoke . Wildfire smoke can also be particularly harmful to children with asthma, allergies, or other chronic health. 

  • Wildfires and Indoor Air Quality in Schools and Commercial Buildings

  • Protecting Children's Health During and After Natural Disasters: Wildfires & Volcanic Ash

Healthy School Environments

  • Creating a Healthy School Environment
    • Assess and Improve Your School Environment
    • Combating Air Pollution at Schools
    • Using Chemicals and Cleaning Safely at School
    • Disasters, Emergencies and Schools
    • Managing Asthma at School
    • Reducing Waste at Schools
  • Environmental Health Threats at School
  • Resources for Educators
Contact Us about Healthy School Environments
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 16, 2025
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