Characterizing dry deposition of mercury in urban runoff

    Authors

    M. Fulkerson; F. N. Nnadi;L. S. Chasar

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Water Air Soil Pollut.

    Keywords

    dry deposition; mercury; partitioning; stormwater; urban runoff; ATMOSPHERIC MERCURY; STORMWATER RUNOFF; METROPOLITAN-AREA; WATER; METALS; QUALITY; NETWORK; FLORIDA; Environmental Sciences; Meteorology & Atmospheric Sciences; Water; Resources

    Abstract

    Stormwater runoff from urban surfaces often contains elevated levels of toxic metals. When discharged directly into water bodies, these pollutants degrade water quality and impact aquatic life and human health. In this study, the composition of impervious surface runoff and associated rainfall was investigated for several storm events at an urban site in Orlando, Florida. Total mercury in runoff consisted of 58% particulate and 42% filtered forms. Concentration comparisons at the start and end of runoff events indicate that about 85% of particulate total mercury and 93% of particulate methylmercury were removed from the surface before runoff ended. Filtered mercury concentrations showed less than 50% reduction of both total and methylmercury from first flush to final flush. Direct comparison between rainfall and runoff at this urban site indicates dry deposition accounted for 22% of total inorganic mercury in runoff.

    Journal Title

    Water Air and Soil Pollution

    Volume

    185

    Issue/Number

    1-4

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    21

    Last Page

    32

    WOS Identifier

    WOS:000249635700003

    ISSN

    0049-6979

    Share

    COinS