Life is a precious element to a broad range of creatures. When a chemical toxin invades life's environment, we should all be concerned. Polychlorinated biphenyls (PCBs) are a group of chemical compounds that are invading and polluting the environment. They cause severe health problems in humans and affect many creatures in nature. Scientist found high PCB levels in two orca whales that washed up dead last February near the Strait of Juan de Fuca (Ko, 2002). …showed first 75 words of 1132 total…

…showed last 75 words of 1132 total…from World Wide Web: http://www.ohioline.osu.edu/cd-fact Ko, M. (2002, June) A whale of a problem. The Report Newsmagazine, pp A906. Oregon State Department of Environmental Quality. (2000) Middle Willamette River Fish Consumption Study. Retrieved January 19, 2003 from World Wide Web: www.waterquality.deg.state.or.us/wq/willamet/reports2000.htm Don Hewitt. (November 11, 2002) Toxic Secret. Anniston, Alabama. CBS news. US. Environmental Protection Agency. (2002) PCBS. Retrieved January 19, 2003 from World Wide Web: www.epa.gov/pcbs