analyze and briefly summarize the situation that brought the carcinogen to newsworthy status

Research a carcinogen that can be classified as either an environmental or   occupational toxicant that has had relevance in the news within the last five   years. 

In  your paper, analyze and briefly summarize the situation that brought the   carcinogen to newsworthy status. Discuss the exposure limits of this   carcinogen, and how individuals were exposed. Also, discuss the toxicological   effects that were not only observed, but all of the possible effects of this   agent. In referencing  Chapter 23 from your assigned reading, briefly discuss   the models used for assessing cancer risks. 

Your analysis should be  at least three pages in length. The title  page and   reference page are not included in the required paper length. Your  paper must   contain at least three references and may  include reliable internet sources,   books, and professional journals or  resources related to the profession. All   sources used, including the textbook,  must be referenced; paraphrased and   quoted material must have accompanying  citations.