Discussion

Instructions:

Post at least one comment to each of the questions listed below. Also post your own questions and thoughts on the lesson.

1. When metals are released in industrial discharge, they are highly persistent, often bioaccumulative and often toxic. What is the best approach for determining allowable levels of release while preserving environmental quality?
2. What should be the comparative risk criteria when considering active discharge of one pollutant against the potential for accidental release of another pollutant?
3. If a natural system, such as VOCs release from forests or metal release from mineral outcroppings, is responsible for chemicals in the environment, should we regard the quality of that environment as degraded

How to Participate in the Discussion

1. Log in to Blackboard and go to the ETox Course.
2. Click on Discussion.
3. Choose the discussion topic Lecture discussions.
4. ReadingMessages:
• Under the Subjectcolumn click on a message.
• If you see a Plusnext to a message that means there are more messages in that thread.They can be expanded by clicking on the Plus.
5. Posting Messages:
• Click on Create Message
• Type your subject and message
• Attachany files you need to
• pressPost

6. Refer to Blackboard for additional assistance.

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