Week 3

Review Questions:


Provide at least three symptoms and three toxic outcomes of sub-lethal lead poisoning.

What segments of the population are most at risk to lead toxicity, and why?

What are the primary sources of lead to adults? What are the primary sources of lead for children?

Express concentrations of mg/L, ug/Kg, and ug/mL, and ng/g into ppm concentrations. Be familiar with these types of conversions from homework1.

Discuss the causes and effects of itai-itai disease.

In the Erin Brockovitch film, chromium caused spinal cord decay, cancer, and other horrible things in the people of Hinkley, but epidemological evidence showed that the people in the adjacent community acutally had higher incidences of these diseases. Discuss what you know about chromium and the quality of the scientific data available on this topic. What do you think of the movie's portrayl of chromium and its impact on the public?

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