HR: 1330h
AN: A52C-0806    [PDF]
TI: HISTORICAL ANALYSIS AND CHARATERIZATION OF GROUND LEVEL OZONE FOR CANADA AND UNITED STATE
AU: * Lin, H
EM: hong.lin@ec.gc.ca
AF: Meteorological Service of Canada-Ontario Region, Environment Canada, 4905 Dufferin Street, Downsview, ON M3H 5T4 Canada
AU: Li, H
AF: AirZOne One, Inc., 2240 Speakman Drive, Mississauga, ON L5K 1A9 Canada
AU: Auld, H
AF: Meteorological Service of Canada-Ontario Region, Environment Canada, 4905 Dufferin Street, Downsview, ON M3H 5T4 Canada
AB: Ground-level ozone has long been recognized as an important health and ecosystem-related air quality concern in Canada and the United States. In this work we seek to understand the characteristics of ground level ozone conditions for Canada and United States to support the Ozone Annex under the Canada-U.S. Air Quality Agreement. Our analyses are based upon the data collected by Canadian National Air Pollution Surveillance (NAPS, the NAPS database has also been expanded to include U.S. EPA ground level ozone data) network. Historical ozone data from 1974 to 2002 at a total of 538 stations (253 Canadian stations and 285 U.S. stations) were statistically analyzed using several methodologies including the Canada Wide Standard (CWS). A more detailed analysis including hourly, daily, monthly, seasonally and yearly ozone concentration distributions and trends was undertaken for 54 stations.
DE: 0345 Pollution--urban and regional (0305)
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting