Gascape
Information on the dangers of contaminated natural gas.
www.gascape.org
PCB Home Page at United States Environmental Protection Agency
Provides information on the Federal program for regulating Polychlorinated Biphenyls, (commonly referred to as PCBs), with particular emphasis on regulatory activities within the Office of Pollution Prevention and Toxics (OPPT).
www.epa.gov/opptintr/pcb
Polychlorinated Biphenyl (PCB) Case Study
Discusses the carcinogenic effects of PCBs, environmental and occupational exposure pathways, common signs of exposure, laboratory evaluation, and treatment.
www.atsdr.cdc.gov/HEC/CSEM/pcb/index.html