Abstract
An intensive multi-site pilot study of atmospheric Hg was conducted in Broward County, Florida in August and September of 1993. Broward County, which contains the city of Fort Lauderdale, is located in southeastern Florida. The county borders the Florida Everglades on the west and the Atlantic Ocean on the east. A network of four sampling sites was set up for 20 days throughout Broward County to measure Hg in both the vapor phase and the particle phase as well as Hg in precipitation. The mean concentrations of total vapor phase Hg measured at two inland sites were found to be significantly higher (3.3 and 2.8 ng/m3) than that measured at a site located on the Atlantic shore (1.8 ng/m3). The mean concentrations of particle phase Hg collected at the two inland sites (51 and 49 pg/m3) were found to be 50% greater than that measured at the coastal site (34 pg/m3). In addition, event precipitation samples were collected at four sampling sites over the 20 day study period and were analyzed for both reactive and total Hg. The mean concentration of total Hg in the precipitation samples was found to be 44 ng/L, with a range of 14 to 130 ng/L. It was determined that further meteorological analysis and a more complete characterization of the aerosol and precipitation composition are needed to identify the probable source(s) contributing to the increased deposition of Hg.
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Dvonch, J.T., Vette, A.F., Keeler, G.J., Evans, G., Stevens, R. (1995). An Intensive Multi-Site Pilot Study Investigating Atmospheric Mercury in Broward County, Florida. In: Porcella, D.B., Huckabee, J.W., Wheatley, B. (eds) Mercury as a Global Pollutant. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0153-0_19
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DOI: https://doi.org/10.1007/978-94-011-0153-0_19
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