Mn/V ratio as a tracer of aerosol sulfate transport

Influence of anthropogenic combustion emissions on the deposition of soluble aerosol iron to the ocean: Empirical estimates for island sites in the North Atlantic

“…The average value for the V/Al (Â100) ratio of oil fly ash is 333 with a range from 67 to 825. marine aerosols, relative to crustal values, is most likely a global-scale feature. Indeed, numerous studies have linked elevated V/Al ratios in marine aerosols to the presence of fuel oil combustion products (e.g., Hoffman et al, 1972;Zoller et al, 1973;Duce et al, , 1983Walsh and Duce, 1976;Rahn, 1981;Chen and Duce, 1983;Husain et al, 1984;Rahn and Lowenthal, 1984;Nriagu and Pacyna, 1988;Arimoto et al, 1995;Holmes and Zoller, 1996;Holmes et al, 1997;Huang et al, 1999Huang et al, , 2001Desboeufs et al, 2005;Jang et al, 2007). In this paper, we explore the possibility of using aerosol V content as a tracer of oil combustion emissions and proxy for aerosol iron solubility, using the AEROCE data set as a specific example.…”

Long‐term trends in atmospheric concentrations of sulfate, total sulfur, and trace elements in the northeastern United States

“…Entrainment of soil particles, forest fires, and sea salt are examples of natural sources in the region. The prevailing westerly winds transport SO 2 , aerosol SO 4 , and the trace elements over distances of hundreds of km in the northeastern United States [ Husain and Samson , 1979; Husain et al , 1984; Dutkiewicz et al , 1987; Rahn and Lowenthal , 1984, 1985]. The aerosols degrade visibility and air quality.…”

Comment on "Erasure of Midwestern Mn/V Signature in an Area of High Vanadium Concentration"

“…Our data simply showed that Mn/V data for Naragansett reported by Rahn et al 2 could not be used to study midwestern SO 4 2~ sources. The abovebetween Mayville and Whiteface Mountain, a distance of ~500 km.…”

“…7 Similarly much understanding of the Mn/V ratio is needed before it can be used to apportion aerosol sources. For example, changes in Mn/V ratios during one episode were very large and disproportional, compared to the changes in [SO 4 2 -] (Table I). These data are from a case particularly suited to study long-range transport.…”