Intraurban concentrations, spatial variability and correlation of ambient polycyclic aromatic hydrocarbons (PAH) and PM2.5
Angelos T Anastasopoulos, Amanda J Wheeler, Deniz Karman, Ryan H Kulka
ATMOSPHERIC ENVIRONMENT | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2012
To investigate the intraurban spatial variability of air toxics associated with respirable particulate matter (PM), ambient PM 2.5 and 16 polycyclic aromatic hydrocarbons (PAH) species (vapour phase plus 2.5 μm particle phase) were sampled over a dense network of sites in Hamilton, Ontario, Canada in June/July 2009 and December 2009. PM 2.5 levels ranged from 2.46 to 11.0 μg m -3 in the summer campaign and 6.52 to 13.4 μg m -3 in the winter campaign. Total sampled PAH (Σ 16PAH) levels ranged from 10.2 to 83.7 ng m -3 in the summer campaign and 8.31 to 52.1 ng m -3 in the winter campaign. Ambient PM 2.5 and PAH concentrations were greater below the city's escarpment with a below/above escarpm..View full abstract
Awarded by Health Canada under CARA contract
Funding for this project was provided by Health Canada under CARA contract #4500212140. The authors sincerely thank: Matt Lawson for serving as primary liaison at City of Hamilton and assisting field work; Roger Finkenbrink and Ivo Zielinski from the City of Hamilton for assisting the field work; City of Hamilton facilities managers and supporting staff for access to municipal sites; Hamilton Fire Department, Hamilton SPCA and the private homeowners and churches who graciously allowed sampling on their properties; Altaf Arain at McMaster University for use of the McMaster sampling site; and Health Canada staff for assistance with field work and data management. The authors would also like to thank Michael Jerrett at University of California at Berkeley for his assistance with sampling siting using location-allocation modelling.