Proposal to NARSTO: Incorporation of Canadian and Mexican PM data into

NAM Spatio-Temporal Analysis

Submitted to NARSTORudolf Husar

May 2001

PM2.5 Networks over N. America

• The Canadian & US PM2.5 data will be reformatted for integration• Compatible parameters (PM2.5, SO4…) extracted

Data Processing and QA

• Summary statistics calculated – Seasonal average– Annual average– Seasonal Percentiles (20, 50, 80, 90%)

• Compatibility of US & Canadian data evaluation (to some degree)– Comparison of co-located samples (few but available)– Average concentration comparison near boundary– Elimination of early 1999 US PM2.5 FRM data– Other tests, to be determined

Seasonal contour maps

• Canadian data to be added• Seasonal and annual PM2.5 maps will be prepared• In remote Canada, data will be shown as color coded bars.

New England: Fine Particle Mass Percentiles

• The same seasonal trend charts will be done for selected Canadian sites

• Shows both the average, seasonality and the episodicity of PM concentration

Lye Brook

MoosehornAcadia

Seasonal PM10 Mexico

• Mexico for 36 stations, 5 cities are available from Mexico

• Additional FRM PM10 data are in AIRS for El Paso, Mexicali and other boarder sites

• Seasonal pattern will be evaluated

Guadalajara Monterrey

Toluca Mexico City

New England: Seasonal Chemical Mass Balance

• The same seasonal chemical trend charts will be done for selected Canadian sites

• Shows the seasonal contribution of different species

Lye Brook

MoosehornAcadiaProctor Maple

Ringwood