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Emission Reduction: partnership with Corning and Syracuse China to reduce lead releases

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The 1997 Toxic Release Inventory (TRI) data identified Corning Inc. and Syracuse China Manufacturing Co. as the top two releasers of lead and lead compounds in New York State. The purpose of this project was to identify the unit operations of the glass and ceramic processes at the two companies that contribute to high emissions of lead, and to assist in implementing cost effective solutions. As a result of this project, as well as other factors, the level of lead used in the glass and china processes at both companies is decreasing; the release of lead to airways from both companies reflects this reduction.

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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?

2. How are the assessment results summarized?


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

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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