Toxic Substances Hydrology Program
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Mobile Atmospheric Mercury Laboratory CapabilitiesU.S. Geological Survey (USGS) scientists have developed a mobile atmospheric mercury laboratory capable of rapidly measuring the speciation and concentration of mercury in air, as well as relevant air quality and meteorological parameters. The mobile laboratory is capable of
The combined multimedia data collected by the mobile laboratory enables scientists to examine the relative importance of local versus regional versus global mercury contributions at a site. This is done by comparing wind direction, air quality data, concentrations of the three primary forms of mercury in air (gaseous elemental, particulate, and reactive gaseous mercury), and the location of known mercury sources. At present (2005), few studies have undertaken detailed examination of the relationship between possible sources of mercury (local, regional, and global) and places where mercury is deposited (lakes, wetlands, …). This relationship is important to evaluate in order to assess whether corrective actions on a local, regional, or global level would achieve improved environmental conditions at a given location. More Information
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