Hamilton Air Quality Trends Denis Corr Department of Engineering Physics McMaster University Lidar Workshop April 25, 2007.

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Presentation transcript:

Hamilton Air Quality Trends Denis Corr Department of Engineering Physics McMaster University Lidar Workshop April 25, 2007

Hamilton Air Quality Initiative Clean Air Hamilton

How Does Poor Air Quality Affect Us? Human Health Impacts Odors and Eye Irritation Poor Visibility and Haze Property Damage Community Perception Issues Direct and Indirect Economic Costs Damage to Natural Ecosystems

Health Impacts

Sahsuvaroglu & Jerrett 2003 Health Impacts of Air Pollutants in Hamilton

Health Impacts in Hamilton by Air Pollutant Sahsuvaroglu & Jerrett 2003

Fine Particles and Pollutant Gases Impact Lungs Inhaled PM 2.5 reaches the alveoli. Oxides of nitrogen and sulphur react with water in the lung tissue to give acidic products. Ozone is a severe lung irritant. Fine Particles and Pollutant Gases Impact Lungs Healthy Lung Airway Inflamed Lung Airway PM 10 PM 2.5

Inversions

Air Monitoring

Continuous Monitoring Locations

Non-Continuous Monitoring Locations

Trends

Have Particulate Levels in Hamilton Improved? Source: 2005 Clean Air Hamilton Report

How do We Compare to Other Ontario Cities? Source: 2003 Clean Air Hamilton Report

Overlay of TSP and PM 10 Data for Period TSP Data Range PM 10 Data Range PM 2.5 Range at City sites

Some Significant Recent Reductions in Pollutants due to Improved Industrial Controls Source: 2005 Clean Air Hamilton Report

Mobile Monitoring A i r Q u a l i t y M o n i t o r i n g S p e c i a l i s t s E n v i r o n m e n t a l ROTEK

NO ppb Wind Direction

PM 10

(Higher Impacts on Women and Over 60s) Exposure to Traffic and the Onset of Myocardial Infarction, A. Peters et al, NEJM, Oct 21, 2004 Traffic Exposure and Myocardial Infarction

Road Dust

Road Dust, Covariance 20xPM 1, 10xPM 2.5, PM 10

Road Dust/Trackout 18 Locations Monitored, 14 Sources Identified Street Resident Criterion – 50 ug/m3 over 24 hrs

PM10 ROAD DUST Ben Garden, Savas Kanaroglou, Pat DeLuca, Spatial analysis Unit, McMaster University

Road Dust Conclusions Survey for only short time period, in winter season, limited to specific areas. High levels of Airborne Particle Pollution due to Trackout/Resuspension were observed in 18 locations. 14 specific sources were identified. Resuspended Road Dust and Fugitive Emissions are very significant sources of Airborne Particle Pollution in Hamilton.

Source Apportionment

Traffic Modelling

High Pollution Triangle, Samples of Modeled Impacts of Traffic Pollutants, (Julie Wallace, Ph.D. Centre for Spatial Analysis, McMaster University) Julie Wallace, Ph.D., Centre for Spatial Analysis, McMaster University Traffic Modelling

East End High P10 West End 403 High NO

NO2 NO

The End

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