Appendix D
Scientific Questions and Policy Questions for the NARSTO Assessment Document1
SCIENTIFIC QUESTIONS FOR THE NARSTO ASSESSMENT DOCUMENT
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What are the most significant research developments in tropospheric ozone science in the past decade?
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How does ozone accumulation on urban (< 200 km) and regional (200 - 2000 km) scales depend on the source dimension and location? How does it depend on the relative contribution from urban and regional sources?
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What are the most recent assessments of the relative contributions of VOCs, NOx, and CO to ozone accumulation on urban and regional scales in North America?
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What are the strengths and limitations of the current scientific methods and tools in assessing tropospheric ozone issues and developing emissions-management strategies?
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What approaches are required to determine historical concentration trends of ozone and its precursors on urban and regional scales? What is required to demonstrate the effectiveness of emissions-control strategies over time?
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What are the relationships between the control strategies designed to manage tropospheric ozone and those designed to manage other pollutant regimes of interest?
1 |
The questions are presented in the appendix of the draft document entitled “An Assessment of Tropospheric Ozone Pollution: A North American Perspective” dated December 20, 1998. |
POLICY QUESTIONS FOR THE NARSTO ASSESSMENT DOCUMENT
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What changes have occurred to tropospheric ozone science over the last decade to alter (or confirm) the course of current air-quality management strategies?
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How manageable is the ozone problem for a given area? (What portion of the problem is local, and what portion is transported in? What portion is essentially irreducible, and what portion is potentially controllable?)
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Are existing emissions-control measures helping to bring the ozone problem under control? (For a given area, if these control measures are continued, will they lead to ozone abatement?)
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What are the relationships between on-going efforts to manage tropospheric ozone pollution and the scientific understanding of the issues?
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What are alternate approaches for reducing current and future high ozone concentrations on urban (< 200 km) and regional (200 - 2000 km) scales?
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How can we best track and assess the progress and effectiveness of our ozone-management efforts?
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Will our efforts to manage ozone help or hinder efforts to mitigate other environmental problems, such as acid rain, fine particles, and global climate change, and vice versa?