Attribution of particulate sulfur in the Grand Canyon to specific point sources using tracer-aerosol gradient interpretive technique (TAGIT)
| Autor: | Mark C. Green, Luis A. de P. Vasconcelos, Warren H. White, Marc Pitchford, Hampden Kuhns, Vince Mirabella |
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| Zdroj: | ResearcherID |
| Popis: | Since aerosol particulate sulfur is generally a secondary airborne pollutant, most source attribution techniques require many assumptions about the transport and chemistry of sulfur dioxide (SO2) emissions. Uncertainties in our understanding of these processes impair our ability to generate reliable attribution information that is necessary for designing cost-effective pollution control policies. A new attribution technique using artificial tracer is presented in hopes of reducing the uncertainty of secondary aerosol source attribution. The Tracer-Aerosol Gradient Interpretive Technique (TAGIT) uses tracer data from a monitoring network to distinguish sites impacted by a source tagged with tracer from nonimpacted sites. Sites determined not to be influenced by the plume are considered to represent background particulate sulfur concentrations. The particulate sulfur attributable to the source at sites within the plume is calculated as the difference between observed and background particulate sulf... |
| Databáze: | OpenAIRE |
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