Healthy diet is not an environmental health hazard for children. It is important for their overall health and development, but it does not pose a direct threat to their health due to environmental factors.

Children are primarily exposed to lead through ingestion, often by mouthing or chewing on objects that contain lead, such as lead-based paint chips or soil contaminated with lead.

Children can be exposed to secondhand smoke from parents, grandparents, daycare providers, or other adults who smoke in their presence.

Exposure to secondhand smoke can increase the risk of asthma, respiratory infections, and sudden infant death syndrome (SIDS) in children.

Indoor air pollution in homes with children can come from various sources, including tobacco smoke, cooking fumes, cleaning products, and other household chemicals.

Abdominal pain, vomiting, and headaches are common symptoms of lead poisoning in children.

Exposure to poor indoor air quality can increase the risk of asthma, respiratory infections, and cancer in children.

Children can be exposed to pesticides through fruits and vegetables, lawn care products, household pest control products, and other sources.

Exposure to pesticides can increase the risk of cancer, developmental disorders, and reproductive problems in children.

Fish is the primary source of exposure to mercury for children. Mercury can accumulate in fish tissue, and children who eat fish regularly can be exposed to high levels of mercury.

Exposure to mercury can cause neurological damage, developmental disorders, kidney damage, and other health problems in children.

Radon is a radioactive gas that can accumulate in homes with basements, crawl spaces, or attached garages. Children who live in homes with high levels of radon are at increased risk of lung cancer.

Exposure to radon is the leading cause of lung cancer among nonsmokers. Children who are exposed to high levels of radon are at increased risk of developing lung cancer later in life.

Asbestos is a mineral fiber that was commonly used in building materials in the past. Older homes and buildings, schools, and daycare centers may contain asbestos, and children who spend time in these places can be exposed to asbestos fibers.

Exposure to asbestos can increase the risk of lung cancer, mesothelioma, and asbestosis, a lung disease caused by the inhalation of asbestos fibers.