Heavy metal contamination in Connecticut. Studies of dated marsh cores on abundances of Cu, Cr, Pb and Zn. Correlations with the industrial history of Connecticut. Radiogenic Pb isotope studies to trace the sources of Pb pollution.

Lead pollution in Chapman Pond, CT River


Wesleyan University BA senior thesis students: Donna McCready '83; John Brooks '84; Alison Gee '85; Stephen Scholand '90; Katie Meigs '99; Tabitha Zierzow '2002 (MA).

Publications:
ES-3. Varekamp, J.C., 1991: Trace element geochemistry and pollution history of mudflat and marsh sediments from the Connecticut coastline. Journal of Coastal Research, spec. issue, v.11, 105-123.
ES-4. Buchholtz ten Brink, M.R.; Mecray, E.L.; Galvin, E.L.; Mcdaniel, S.;  Varekamp, J.C.; and Murray, R.W.. 2000. Regional accumulation of contaminated sediments in Long Island Sound. In:Whitlatch, (ed.) Long Island Sound 1998 research conference proceedings.
ES-5. Varekamp, J.C., Mecray, E.L. and Zierzow, T., 2004, Once Spilled, Still Found: Metal Contamination in Connecticut Coastal Wetlands and Long Island Sound Sediment from Historic Industries. Chapter 7 In: Changing Coasts-private rights and public trusts (eds. Whitehall, D.M. and Visgilio, G.R.). (in press). 

Hg pollution
in and around Long Island Sound. A study of dated (210Pb, 137Cs and 14C) coastal salt marsh cores for Hg abundances, and grab and core samples from Long Island Sound (with Marilyn Buchholtz ten Brink & Ellen Mecray, USGS, Woods Hole, MA).

Wesleyan students: John Crocket ' 93;  Scott Herman, '98; Bill Thompson '99; Kate Lauriat 2001; Beth Goldoff' 2002, Rachel Bronsther, 2004.
MA students: Bart Kreulen '99
other student: Julia Lynton (Haverford College).

Publications
HG-1. Varekamp, J.C. and Buseck, P.R., 1981: Mercury emissions from Mt. St. Helens during September 1980. Nature, 293, 555-556.
HG-2. Varekamp, J.C. and Buseck, P.R., 1983: Hg anomalies in soils: a geochemical exploration method for geothermal areas. Geothermics, 12, 29-47.
HG-3. Varekamp, J.C. and Buseck, P.R., 1984: The speciation of mercury in hydrothermal systems, with applications for ore deposition. Geochim. Cosm. Acta, 48, 177-186.
HG-4. Varekamp, J.C. and Buseck, P.R., 1984: Changing mercury anomalies in Long Valley, California: Indication for magma movement or seismic activity. Geology, 12, 283-286.
HG-5. Varekamp, J.C. and Buseck, P.R., 1986: Global mercury flux from volcanic and geothermal sources. Applied
Geochemistry, 1,  65-73.
HG-6. Varekamp, J.C., and Waibel, A., 1987: Natural cause for mercury pollution at Clear Lake, California, and
paleotectonic inferences, Geology 15, 1018-1021.
HG-7. Varekamp, J.C., Buchholtz ten Brink, M.R., Mecray, E.L., and Kreulen, B., 2000, Mercury in Long Island Sound sediments. J. Coastal Research. Spec. issue, vol. 16, 613-626.
HG-8. Varekamp, J.C., Kreulen*, B., Buchholtz ten Brink, M.F, and Mecray, E., 2003, Mercury contamination chronologies from Connecticut wetlands and Long Island Sound sediments. Environmental Geology, 43, 268-282.

HG-9. Varekamp, J.C., Mecray, E.L., and Zierzow, T., 2005, Once spilled, still found: Metal contamination in Connecticut wetlands and Long Island Sound sediment from historic industries.  Chapter in book on ‘Our Changing Coasts’, editors Whitelaw and Visiglione, E.Elgar Publishers, Chapter 9, p. 122-147.

HG-10. Dunagan, S.C., M. S. Gilmore and J. C. Varekamp. Effects of Mercury on visible/near-infrared reflectance spectra of Mustard Spinach plants (Brassica rapa P.), J. of Envir. Pollution, doi:10.1016/j.envpol.2006.10.023  in press.

Visit the "Hg pollution in and around Long Island Sound" web site

Web site referring to our work on Hg abundances in Danbury and the Still River basin stemming from the historic hat-making industry:
http://www.seagrant.uconn.edu/HATTER.HTML


Hg concentrations in LIS