Trace Metals and Nutrients in the Hudson River Buoyant Plume

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Trace Metals and Nutrients in the Hudson River
Buoyant Plume
John Reinfelder Derek Wright Kristie
Ellickson James Moore Department of Environmental
Sciences Rutgers
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Trace Metals and Nutrients in the Hudson River
Buoyant Plume
Goals estimate advective fluxes of metals and
nutrients to the shelf quantify vertical
fluxes of metals and nutrients into and out of
the plume quantify transformations of metals
and nutrients within the plume evaluate the
bioavailabilities of metals in the plume
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Hudson River Estuary
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Hudson River Estuary
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Latte-04 nutrients
Plume 1
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Latte-04 nutrients
Plume 2
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Latte-04 nutrients
Plume 2
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Latte-04 nutrients
Plume 1
Plume 2
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Sept-04 (Ecolab-12 min resolution)
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Latte-04 Metals
Hatteras particulate metals 0.2 ?m, 2 ?m
below detection - need more mass 20 ?m looks
good Connecticut particulate metals same as
above plus possible contamination
issues Hatteras dissolved metals total Hg
complete other metals being analyzed
today! Connecticut whole water metal samples
should be O.K. (contamination issues?)
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Latte-04 Particulate metals
200 ng L-1 (Al, Fe ?g L-1 Ag x 100, Al x 10)
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Dissolved Hg ( 0.10 pM) in the Hudson River
buoyant plume, May 2-6, 2004 10 samples/day
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Free Cu ion concentration (pCu -logCu2)
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Redox redox cycle and evasion flux of mercury in
surface waters
HR discharges Atmo dep
Hg
hv, bacteria
Hg
Hg(II)
H2O2, bacteria
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Dissolved gaseous (elemental) mercury (Hg) in
the Hudson River buoyant plume
S
W
N
N
S
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