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A. Unit conversions 1. Units of measure used to express chemical or radiation levels in the natural environment: Units Place in correct descending order according to mass (highest to lowest): Gram Femtogram Microgram Milligram Picogram Kilogram Nanogram 2. How many femtograms are there in a milligram? 1000000000000 3. Which of the following represents the lowest concentration of a chemical? A. 2 mg/L B. 4 ng/L C. 8 mg/mL D. 5 ?g/mL 4. Which of the following represents the highest concentration of a chemical? A. 8.5 x 10-2 mg/L B. 3.0 ng/M3 C. 0.25 mg/M3 D. 3.5 x 10-5 ?g/L 5. Environmental Exposures are expressed in terms of unit of mass per unit volume. In the following provide the quantified intake units for the following media: Air: Water: Food: B. Risk Assessment of Non-carcinogenic Agents (5 points): 1. Given a NOAEL of 1000 mg/kg-day, based on a long-term chronic animal study, the ADI (mg/kg-day) would be _____________. 2. Given a LOAEL of 1000 mg/kg-day, based on a long-term chronic animal study, the ADI (mg/kg-day) would be __________________. 3. Given a LOAEL of 1000 mg/kg-day, based on a subchronic animal study, the ADI (mg/kg-day) would be ____________. 4. Given a LOAEL of 1000 mg/kg-day, based on an epidemiology study, the ADI (mg/kg-day) would be __________. 5. Given the data in the following table, what are the values for: a) NOAEL __________ b) LOAEL __________ Dose Number deaths/exposed animals 0.5 mg 1.0 mg 1.5 mg 2.0 mg 3.0 mg 3.5 mg
Although nontechnical staff may not be directly involved in the technical details related to developing a new system, why should they be included in the development process?
Explain the economic system in Cuba, and what kind of trades they do with other countries. Also explain if their trades have been affected or not with other countries because of the BAD relationship with the US.
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Select two of the following theoretical approaches: psychodynamic, humanistic and existential, dispositional, or learning.
Conduct some library research before writing your paper. You will need to use at least four academic research articles in your essay
Scope Statement: Create a scope statement for the project.
question 1tourism gives rise to different advantages and costs and the nature and scope of economic impacts tend to
Should the United States implement National Health Care
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The terms Hispanic and Latino are umbrella terms for people from many different Spanish-speaking cultures in the Western Hemisphere. Although the grouping includes a wide range of cultures there is evidence of the formation of a panethnic identity
What is High Intensity Interval Training? Give some examples.
What are the implications of the actions or nonactions in this situation that can impact your job status, other parties involved, and the community?
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