Ozone at high elevation in Quebec region

Kurt Anlauf, Kathy Hayden, Maurice Watt

(1)present background ozone concentrations (2) real-time ozone for use in air quality forecasting (3) long-term trend of ozone in Eastern North America

(4) ozone episodes as a result of anthropogenic emissions

(5) the meteorological and chemical processes conducive to the appearance of such episodes

(6) the transboundary flux into southern Quebec.

Science Objectives

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845 masl at the top of a ski hill

7 km north of the Vermont/Quebec border in the eastern townships of Quebec

Sutton O3 Trend: Jan 1987-Dec 2003

Sutton O3 Trend by Wind Direction Sector

Jan 1987-Dec 2003

Sutton O3 Monthly Averages: 1987-2003

Sutton O3 Monthly Averages by Sector

1987-2003

Seasonal Trend in O3 at Sutton: 1987-2003

Sutton O3: Number of hourly O3 values exceeding 60 and 80 ppbv per year

-2003 O3 and meteorology data set in final form

- Continuous remote data collection (2x/day) and site calibrations

- data acquisition software upgraded and archiving programs rewritten – more streamlined

- web site set up to post daily/weekly plots: http://smog.ontario.int.ec.gc.ca/hep

- trend analysis using trajectories

Current Activities

Future Activities

- site to be added to the AQ forecasting network - install upgraded instrumentation for real time access

- start and complete 2004 O3 and meteorology datasets

- collaborating with S. Oltmans (NOAA) on a paper to assess tropospheric O3 changes

- more detailed NOx emissions (seasonal) – changes in anthropogenic emissions

- continue with trend analysis