EPA Chemical Emergency Preparedness and Prevention Advisory Swimming Pool Chemicals: Chlorine [open pdf - 60KB]
"This advisory to Local Emergency Planning Committees (LEPCs) [advises] special attention to swimming pool chemicals this summer." This advisory outlines how pool chemicals work, steps for LEPCs, and steps for facilities. […] "Many chemicals used at swimming pools may release chlorine - an extremely hazardous substance (EHS). Careless storing, wetting, mixing, or the contamination of any of these chemicals or the systems used to feed them can cause fires, explosions, burns, and possibly the release of gaseous chlorine, resulting in injuries or death. Facilities should train all employees, including summer employees, on the safe use and potential hazards of these chemicals."
Series 8, No. 1
United States Environmental Protection Agency: http://www.epa.gov/