Cholrine

Remember to write your name and student number. Deposit your completed assignment in box outside SW-223. You should use a word processor for your written responses. Your document should conform to the following: 25.4 mm margins, single-spaced, 12-point print size, Q #3 no longer than two pages.

1. What are the FIVE major risks you face from:

i. Your lifestyle. Explain (5 point)

ii. Where you live. Explain (5 point)

iii. What you do for a living. Explain. (5 point)

Which of these risks are voluntary (1 point) and which are involuntary (1 point)

List five most important things you can do to reduce these risks. Discuss. (2 point)

Which of these things do you actually plan to do? (1 point)

2. In each of the following cases, specify the route(s) of entry of the toxic substance to the body. Explain.

i. A child living in an old house in which the paint is peeling is found to have an elevated level of lead in his blood (2 point)

ii. A worker in a retail dry-cleaning establishment who specialized in removing stains by rubbing them with special solvents develops liver disease, diagnosed to be caused by chlorinated hydrocarbons.

(2 point)

iii. A hiker becomes violently ill after being bitten by a rattlesnake. (2 point)

3. Chlorine is widely used to disinfect drinking water. It is known to form low molecular weight chloromethane compounds (e.g. chloroform) due to the presence of trace amounts of organic material in drinking water. There is some evidence to link exposure