School maintenance workers also may be exposed if precautions aren't taken to control lead dust. They can even expose their families if lead dust travels home on their clothes. Lead damages the brain, nervous system, and kidneys. Poisoning can occur gradually, and there are often no obvious symptoms. Even at low levels, lead can cause learning difficulties, behavior problems, and lower IQs in children.
Lead poisoning is preventable if lead-safe policies and procedures are followed.
Lead paint is usually not a hazard if it is in good condition. However, lead dust may be created when surfaces are damaged or prepared for repainting. Assume surfaces that have been painted prior to 1992 have lead paint, and follow recommended lead-safe work practices. Give first priority to young childrens' classrooms and play areas. Make sure custodians and maintenance staff are properly trained in lead-safe work practices.