Klump, J. V., University of Wisconsin-Milwau, Milwaukee, USA, vklump@uwm.edu
McLellan, S. L., University of Wisconsin-Milwaukee/ Great Lakes WATER Institute, Milwaukee, USA, mclellan@uwm.edu
Mueller-Spitz, S. ., University of Wisconsin-Milwaukee/ Great Lakes WATER Institute, Milwaukee, USA, smspitz@uwm.edu
Bravo, H. R., University of Wisconsin-Milwaukee/ Great Lakes WATER Institute, Milwaukee, USA, hrbravo@uwm.edu
PARTICLE DYNAMICS ASSOCIATED WITH PATHOGEN TRANSPORT IN COASTAL LAKE MICHIGAN
Since many pathogens associate with particles, the fate and transport of particles in the coastal zone is an important process in determining the health risk associated with pathogen inputs from storm water, CSOs and river plumes. We are utilizing sediment traps, large volume (>1000 L) filtrations of suspended particulates, and ROV collections of surface sediment to quantify sediment resuspension rates, particle settling rates and particle residence times in the nearshore waters of the Milwaukee Bight – a coastal region of Lake Michigan strongly influenced by the export of materials from the Milwaukee Harbor and its highly urbanized watershed. Activities of the naturally occurring radionuclides Be-7, Pb-210 and Cs-137 have been used to determine the time scales of particle movement. Samples were collected every ~3 weeks from early May through the end of October 2007, at 4 stations from the river mouth to open Lake Michigan, including off the major metropolitan swimming beach. Radionuclide data are being used to help validate the particle dynamics modeled with a fine grid, 3-dimensional hydrodynamic model of coastal currents, temperature fields and particle transport.
Poster presentation
Presentation is given by student: No
Session #:120
Date: 03-03-2008
Time: 17:30 - 19:30