Case Study Assignment
Part 1: Exposure Assessment Case Study
Directions: After reading the Centers for Disease Control and Prevention case study attached, answer the following questions.
Case Study: "Cross-sectional Exposure Assessment of Environmental Contaminants in Churchill County, Nevada" by the Centers for Disease Control and Prevention.t
1) Identify the agent:________________.
2) What type of agent is described?
___biological
___chemical
3) Source:
____anthropogenic _____non-anthropogenic
____area _____point
____stationary _____mobile
____indoor _____outdoor
4) Transport/carrier medium:
___air
___water
___soil
___dust
___food product item
5) Exposure pathways:
___eating contaminated food
___breathing contaminated air
___touching a contaminated surface
___drinking contaminated water
6) Exposure concentration:
___mg/kg (food) ___mg/litre (water)
___ug/m3 (air) ___ug/cm3 (contaminated surfaces)
___% by weight ___fibres/m3 (air)
7) Exposure route:
___inhalation ___dermal contact
___ingestion ___multiple routes
8) Exposure frequency:
___continuous ____intermittent
___cyclic ____random
___rare
9) Exposure duration:
___seconds ___minutes
___hours ___days
___weeks ___months
___years ___lifetime
10) Exposure setting:
___occupational ____non-occupational
___residential ____non-residential
___indoors ____outdoors
11) Exposed population:
____general population
____population subgroups
____individuals
12) Geographic scope:
___site ___specific
___local ___regional
___national ___international
___global
Part 2: Risk Assessment
Directions: Use the case study attached to provide answers to the following questions.
Case Study: "Illness Associated with Drift of Chloropicrin Soil Fumigant into a Residential Area-Kern County, California, 2003,"
1. Issue Identification
a. What is causing the identified problem?
b. Why is the problem a problem?
c. How was the problem initially identified?
d. What are the public perceptions of the hazard?
2. Hazard Identification
a. What types of adverse health effects might be caused by the problem?
b. How quickly and for what duration might the problem be experienced?
3. Dose Response Assessment
a. Evaluate both qualitative and quantitative toxicity information to estimate the incidence of adverse effects occurring in humans at different exposure levels.
4. Exposure Assessment for the Relevant Population
a. Determine the frequency, magnitude, extent, duration, and character of exposures to the hazard.
5. Risk Characterization
a. Detail the nature and potential incidence of effects for the exposure conditions described in the exposure assessment.
Format your assignment according to the following formatting requirements:
1. The answer should be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides.
2. The response also includes a cover page containing the title of the assignment, the student's name, the course title, and the date. The cover page is not included in the required page length.
3. Also include a reference page. The Citations and references should follow APA format. The reference page is not included in the required page length.