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Staten Island/New Jersey Urban Air Toxics Assessment Project


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The project was a program of ambient air monitoring and meteorological data collection from October 1987 through September 1989, and indoor air sampling from July 1990 through mid-March 1991. An emission inventory was conducted to assist source identification and support risk management where the risk assessment indicated such a need.

This study examined the levels of toxic air pollutants in the Staten Island/New Jersey area and was designed to assess the health risks (cancer and noncancer) to the residents of Staten Island due to the emission of these toxic air pollutants. Estimation of risk of cancer and noncancer effects from lifetime inhalation exposure to air toxics released from point, area, and mobile sources. A limited study of indoor air and an odor monitoring study was also carried out.

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Completed reports available from National Technical Information Service (NTIS), telephone number (703) 878-4650.

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This section describes how emissions were measured or modeled, and what risk factors were used.

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1. How is this project best classified?

Human Health Assessment

2. How are the assessment results summarized?

Other

3. What risk types or hazards are considered in the project?

Chronic, Cancer, Noncancer, Indoor Air

4. List any additional features that describe the scope of the project.


5. Is the risk assessment done for an individual source (e.g., a permitted source) or for multiple sources in the area?


6. Which pollutants are assessed?

6.a. Are they assessed individually, or on a cumulative basis?

6.c. Additional Comments:

7. Does the project consider ambient/background concentrations in determining exposure?


8. What conservative assumptions are made?

9. What "best estimate" assumptions are made?

10. What cancer and non-cancer toxicity dose response values are used? Do they differ from the EPA IRIS values? What is the data source for these values?


11. What assumptions are made when a match from chemical emitted to toxicity value is not exact?


12. What is the basis for emission estimates used in the project -- actual or allowable?


13. What exposure pathways are assessed?


14. What assumptions are made in considering exposure pathways?


15. For inhalation exposure assessments, is exposure modeling conducted (i.e., consideration of changes in pollutant inhalation concentrations in different locations frequented at different times by populations of interest)? Or is there an assumption of continuous exposure to outdoor air over a certain time period?


16. Describe the peer review process for the study, if any.


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