tailieunhanh - HEMISPHERIC TRANSPORT OF AIR POLLUTION 2007: AIR POLLUTION STUDIES No. 16

In a variation to this base case, costs are also calculated where the health effects of PM10 are estimated without a threshold. This variation provides a sensitivity analysis that shows how specifying a threshold affects total cost estimates. As acknowledged by Kunzli et al. (1999), the approach of using one pollutant as an indicator of the air pollution mix and only estimating the impact of PM10 above a baseline will probably underestimate the impact of air pollution. In Sydney, ozone is a pollutant of particular concern, and epidemiological studies suggest that there are ozone health impacts additional to those. | ECONOMIC COMMISSION FOR EUROPE Geneva HEMISPHERIC TRANSPORT OF AIR POLLUTION 2007 AIR POLLUTION STUDIES No. 16 Interim report prepared by the Task Force on Hemispheric Transport of Air Pollution acting within the framework of the Convention on Long-range Transboundary Air Pollution UNITED NATIONS New York and Geneva 2007 Symbols of United Nations documents are composed of capital letters combined with figures. Mention of such symbols indicates a reference to a United Nations document. The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of the United Nations concerning the legal status of any country territory city or area or of its authorities or concerning the delimitation of its frontiers or boundaries. In United Nations texts the term ton refers to metric tons 1 000 kg or 2 lbs . Acknowledgements The Task Force Co-Chairs and the secretariat would like to acknowledge the assistance of EC R Inc. in preparing this publication. We would also like to acknowledge the invaluable contribution of the individual experts and the Convention s programme centres and task forces. ECE 94 UNITED NATIONS PUBLICATION __Sales No. ISSN 1014-4625 ISBN 978-92-1-116984-3 Copyright United Nations 2007 All rights reserved UNECE Information Service Palais des Nations CH-1211 Geneva 10 Switzerland Phone 41 0 22 917 44 44 Fax 41 0 22 917 05 05 E-mail Website http List of contributors Report Co-Chairs Terry Keating United States Executive summary Coordinating lead authors Terry Keating United States Contributing authors Glynis Lough United States André Zuber European Community André Zuber European Community Chapter 1 Introduction Terry Keating United States André Zuber European Community Chapter 2 Conceptual overview Coordinating lead authors Owen Cooper United States Contributing authors Ruth Doherty United .