Polychlorinated biphenyls (PCBs) background of the chemical (uses of this chemical, occurance [natural or man-made], safe vs danger-level exposure concentrations, acute or chronic toxicity, etc) 2)  Does this chemical bioaccumulate? if so, why?  If not, why not?  Also discuss biotransformation of the chemical.  3) Effects on local wildlife, with a specific documented example of harmful exposure with this toxin.  Document how clean-up would  occur (if it could) and where storage of the toxin would happened...for how long...then what would be done with it? Generate numerical figures on yearly generation of this substance (what amount is made or generated whether naturally or by man-made process), and how is disposed of yearly.

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Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.