Spatial Variability and Application of Ratios between BTEX in Two Canadian Cities

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ID: 48840
2011
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Abstract
Spatial monitoring campaigns of volatile organic compounds were carried out in two similarly sized urban industrial cities, Windsor and Sarnia, ON, Canada. For Windsor, data were obtained for all four seasons at approximately 50 sites in each season (winter, spring, summer, and fall) over a three-year period (2004, 2005, and 2006) for a total of 12 sampling sessions. Sampling in Sarnia took place at 37 monitoring sites in fall 2005. In both cities, passive sampling was done using 3M 3500 organic vapor samplers. This paper characterizes benzene, toluene, ethylbenzene, o, and (m + p)-xylene (BTEX) concentrations and relationships among BTEX species in the two cities during the fall sampling periods. BTEX concentration levels and rank order among the species were similar between the two cities. In Sarnia, the relationships between the BTEX species varied depending on location. Correlation analysis between land use and concentration ratios showed a strong influence from local industries. Use one of the ratios between the BTEX species to diagnose photochemical age may be biased due to point source emissions, for example, 53 tonnes of benzene and 86 tonnes of toluene in Sarnia. However, considering multiple ratios leads to better conclusions regarding photochemical aging. Ratios obtained in the sampling campaigns showed significant deviation from those obtained at central monitoring stations, with less difference in the (m + p)/E ratio but better overall agreement in Windsor than in Sarnia.
Reference Key
miller2011spatialthe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Miller, Lindsay;Xu, Xiaohong;Wheeler, Amanda;Atari, Dominic Odwa;Grgicak-Mannion, Alice;Luginaah, Isaac;
Journal the scientific world journal
Year 2011
DOI
DOI not found
URL
http://dx.doi.org/10.1100/2011/167973
Keywords
chemistry Medicine Materials of engineering and construction. Mechanics of materials Technology Science environmental sciences chemical engineering genetics environmental technology. sanitary engineering industrial medicine. industrial hygiene

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