Spatial variability of sulfur dioxide and sulfate over complex terrain in East Tennessee,USA |
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| Authors: | LaToya Myles Ronald J. Dobosy Tilden P. Meyers William R. Pendergrass |
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| Affiliation: | 1. Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russian Federation;2. Radiation Protection & Civil Defense Department, Nuclear Research Center, Egyptian Atomic Energy Authority (EAEA), 13759 Abu Zaabal, Egypt;3. Division of Neutron Physics, National Nuclear Research Centre JSC, 370143 Baku, Azerbaijan;4. Department of Ecological Chemistry, Baku State University, AZ1148 Baku, Azerbaijan;1. Department of Climatology and Landscape Ecology, University of Szeged, HU-6701 Szeged, P.O. Box 653, Hungary;2. Department of Mechanical Machines, “Politehnica” University, RO-300222 Timi?oara, Bv. Mihai Viteazu, No. 1, Romania;3. Department of Meteorology, Eötvös Loránd University, H-1117 Budapest, Pázmány Péter Street 1/A, Hungary |
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| Abstract: | In 2004 and 2005, the East Tennessee Ozone Study (ETOS) enhanced its regional measurement program with annular denuder systems to quantify sulfur dioxide (SO2) and PM2.5 sulfate (SO42?) at five sampling sites that were representative of the complex terrain and physiographic features of East Tennessee. Intersite spatial variability was more defined for SO2 than for SO42?, which showed a fairly uniform structure in both daytime and nighttime measurements. Pollution roses indicated that two sites may have been influenced by the proximity of SO2 emission sources. The data suggest that SO2 is affected by nearby sources in the study area while the sources of SO42? are regionally distributed. |
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