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Air Pollution Trends Opportunities

Air Pollution Trends Opportunities. Jeffrey R. Brook Senior Scientist Air Quality Research Division. Air quality has improved considerably. Long-Term Trend in “Soot”. Elemental or Black Carbon ( m g/m 3 ). Courtesy of Tom Dann. Decreasing Trend in PM 2.5.

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Air Pollution Trends Opportunities

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  1. Air Pollution TrendsOpportunities Jeffrey R. Brook Senior Scientist Air Quality Research Division

  2. Air quality has improved considerably

  3. Long-Term Trend in “Soot” Elemental or Black Carbon (mg/m3) Courtesy of Tom Dann

  4. Decreasing Trend in PM2.5 Annual Mean Sulphate (mg/m3) Annual Mean PM2.5 (mg/m3)

  5. Decreasing Trend in NOx Annual Mean NO2 and NO (ppb)

  6. An Environmental Management Success Story

  7. Ground-level ozone has declined since the early 2000s, however… Large regions encompassing a large fraction of the population still exceed the new National Standard

  8. Hotspots may still pose risks Ambient Volatile Organic Compound (VOC) levels increasing among monitoring sites near petrochemical industries

  9. Traffic Air Pollution remains an important source of exposure for many CanadiansAir pollution effects occur down to low concentrations

  10. Given what has and is expected to be done to regulate emissions …What else could be considered?

  11. Health Benefits of Reducing Diesel Exposure “Scientific evidence is compelling” http://www.iarc.fr/en/media-centre/iarcnews/2012/mono105-info.php

  12. New diesels are much cleanerLegacy heavy duty diesels are potentially on and off our roads for multiple decades to come $460M

  13. There are also opportunities to improve air quality in Canada through retrofits of the legacy diesel fleet Some assessments Some small pilot tests

  14. Air pollution is a factor in asthma and allergy development and/or exacerbation and much of our exposure is “involuntary”However, all aspects of a child’s environment need to be considered to optimize preventive strategiesKnowledge is still lacking to do this

  15. CHILD Birth Cohort Examining the Origins of Asthma and Allergy A national platform for multi-disciplinary research on environment and health From asthma to other chronic diseases that develop through the life course Exposures Pollution N = 3600 Work & School environment Home environment Genetics Immune phenotypes Clinical phenotypes Stress Diet Viruses SES Pets

  16. CHILD is currently following children in Toronto, Winnipeg, Edmonton and VancouverOverall air pollution and traffic air pollution are being studied along with many other environmental factorsStay tuned !

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