Step 1: Keeping the case study provided above in your mind, develop a 300 to 500 word paper that addresses the following questions. 

• What is the role of biomarkers in exposure assessment? 
• What approaches for assessment, prevention, and control of Arsenic exposure can be applied in this case?
• What is the role of toxicology in environmental and occupational health?
• Develop a table stating the strengths and limitations of the available toxicological assessment methods (blood, urine analysis, and hair or nail testing)?
• All references should follow 7th Edition APA formatting. See the resource on the Himmelfarb Health Sciences Library for instructions: APA citation resource (references are excluded from word counts).

Before you submit, engage in an introspective self-analysis by systematically reviewing each component of your work. Reflect on what aspects of your work were executed well and what could be enhanced. Proceed to refine these elements in your work. 

Step 3: Submit your assignment by clicking “add a new discussion topic” below, completing the fields, and clicking “post to forum”.

OPTIONAL Step 4: Interact (10 minutes)

If you would like to, you can reply to your peers' posts in a respectful and professional manner. Ensure that your post engages your peers' ideas by including a reflection on their comments, sharing ideas of other potential difficulties and parties involved, or asking thought-provoking questions. If a peer comments on your posting, please reply. To post a reply, click “Reply” on a particular discussion, write your feedback and then click on “Post to forum.”

In this activity, you will propose a model for the development of lung cancer in the context of the environmental insult case study provided above.

Step 1: Review the case study provided above and the material regarding environmental insults provided in the course. An example of a model is provided here.

Step 2: Create an environmental insult model with the information provided above, it should look like the model presented above. Include a brief discussion that contains the following aspects:

• A rationale for the proposed model

• The process used to develop the model

• Instructions for testing the model 

• All references should follow 7th Edition APA formatting. See the resource on the Himmelfarb Health Sciences Library for instructions: APA citation resource (references are excluded from word counts).

Step 3: Prepare your work in a document and submit your assignment ensuring it meets the assignment's requirements by clicking “add a new discussion topic” below and completing the fields. Make sure to upload the document that contains your work, do NOT paste your work in the Description box.

Step 4: Self-Analysis and Enhancement
Before you submit, engage in an introspective self-analysis by systematically reviewing each component of your work. Reflect on what aspects of your work were executed well and what could be enhanced. Proceed to refine these elements in your work. 

Step 5: Submit your assignment by clicking “add a new discussion topic” below, completing the fields, and clicking “post to forum”.

OPTIONAL Step 6: Interact (10 minutes)

If you would like to, you can reply to your peers' posts in a respectful and professional manner. Ensure that your post engages your peers' ideas by including a reflection on their comments, sharing ideas of other potential difficulties and parties involved, or asking thought-provoking questions. If a peer comments on your posting, please reply. To post a reply, click “Reply” on a particular discussion, write your feedback and then click on “Post to forum.”