ERIC Number: ED415658
Record Type: RIE
Publication Date: 1994-Mar
Science Laboratories and Indoor Air Quality in Schools. Technical Bulletin.
Jacobs, Bruce W.
Some of the issues surrounding the indoor air quality (IAQ) problems presented by science labs are discussed. Described are possible contaminants in labs, such as chemicals and biological organisms, and ways to lessen accidents arising from these sources are suggested. Some of the factors contributing to comfort, such as temperature levels, are explored, and an overview of exposure standards for air contaminant levels are discussed. Recommended control methods to avoid IAQ problems include eliminating or reducing the use of potentially harmful chemicals such as ether and mercury; ensuring that room ventilation meets government standards; and using hoods in labs to vent harmful vapors. Various laboratory hood exhaust systems are described and recommendations for hood placement are provided. It is emphasized that maintenance and sound operation policies are needed to ensure proper ventilation and that labs should use negative pressure whenever production of contaminants may occur. An overview of laboratory hood performance is provided. Others control methods include the proper storage of chemicals, careful disposal of laboratory waste, and implementation of a chemical hygiene plan. (Contains 1 table, 3 figures, and 14 references.) (RJM)
Descriptors: Elementary Secondary Education, Facilities Management, Hazardous Materials, Health Conditions, Indoor Air Pollution, Inspection, Quality Control, School Buildings, School Safety, Science Facilities, Science Laboratories, Ventilation
Maryland State Dept. of Education, School Facilities Branch, 200 W. Baltimore St., Baltimore, MD 21201 (free to Maryland public schools; $8 for others).
Publication Type: Guides - Non-Classroom; Reports - Research
Education Level: N/A
Audience: Administrators; Practitioners; Support Staff; Teachers
Sponsor: Environmental Protection Agency, Washington, DC. Office of Radiation and Indoor Air.
Authoring Institution: Maryland State Dept. of Education, Baltimore.