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Found 67 results

2007

Precipitation chloride at West Point, NY: Seasonal patterns and possible contributions from non-seawater sources
Shapiro, J. B.; Simpson, H. J.; Griffin, K. L.; Schuster, W. S. F.
Atmospheric Environment
(2007)
Issue:
10
Pages:
2240-2254
Volume:
41
DOI 10.1016/j.atmosenv.2006.03.049
Laboratory investigations of enhanced sulfate reduction as a groundwater arsenic remediation strategy
Keimowitz, A. R.; Mailloux, B. J.; Cole, P.; Stute, M.; Simpson, H. J.; Chillrud, S. N.
Environmental Science & Technology
(2007)
Issue:
19
Pages:
6718-6724
Volume:
41
Doi 10.1021/Es061957q

2006

Arsenic-rich iron floc deposits in seeps downgradient of solid waste landfills
Parisio, S.; Keimowitz, A. R.; Simpson, H. J.; Lent, A.; Blackman, V.
Soil & Sediment Contamination
(2006)
Issue:
5
Pages:
443-453
Volume:
15
Doi 10.1080/15320380600846775

2005

Arsenic redistribution between sediments and water near a highly contaminated source
Keimowitz, A. R.; Zheng, Y.; Chillrud, S. N.; Mailloux, B.; Jung, H. B.; Stute, M.; Simpson, H. J.
Environmental Science & Technology
(2005)
Issue:
22
Pages:
8606-8613
Volume:
39
Doi 10.1021/Es050727t
Geochemical and hydrogeological contrasts between shallow and deeper aquifers in two villages of Araihazar, Bangladesh: Implications for deeper aquifers as drinking water sources
Zheng, Y.; van Geen, A.; Stute, M.; Dhar, R.; Mo, Z.; Cheng, Z.; Horneman, A.; Gavrieli, I.; Simpson, H. J.; Versteeg, R.; Steckler, M.; Grazioli-Venier, A.; Goodbred, S.; Shahnewaz, M.; Shamsudduha, M.; Hoque, M. A.; Ahmed, K. M.
Geochimica Et Cosmochimica Acta
(2005)
Issue:
22
Pages:
5203-5218
Volume:
69
DOI 10.1016/j.gca.2005.06.001
Naturally occurring arsenic: Mobilization at a landfill in Maine and implications for remediation
Keimowitz, A. R.; Simpson, H. J.; Stute, M.; Datta, S.; Chillrud, S. N.; Ross, J.; Tsang, M.
Applied Geochemistry
(2005)
Issue:
11
Pages:
1985-2002
Volume:
20
DOI 10.1016/j.apgeochem.2005.06.008
Steel dust in the New York City subway system as a source of manganese, chromium, and iron exposures for transit workers
Chillrud, S. N.; Grass, D.; Ross, J. M.; Coulibaly, D.; Slavkovich, V.; Epstein, D.; Sax, S. N.; Pederson, D.; Johnson, D.; Spengler, J. D.; Kinney, P. L.; Simpson, H. J.; Brandt-Rauf, P.
Journal of Urban Health-Bulletin of the New York Academy of Medicine
(2005)
Issue:
1
Pages:
33-42
Volume:
82
DOI 10.1093/jurban/jti006
Oxidation of groundwater arsenic and iron
Keimowitz, A. R.; Simpson, H. J.; Chillrud, S. N.; Stute, M.; Tsang, M.; Datta, S.; Ross, J.
Advances in Arsenic Research
(2005)
Pages:
206-219
Volume:
915

2004

Radiogenic Lead Isotopes and Time Stratigraphy in the Hudson River, New York
Chillrud, S. N.; Bopp, R. F.; Ross, J. M.; Chaky, D. A.; Hemming, S.; Shuster, E. L.; Simpson, H. J.; Estabrooks, F.
Water, Air, Soil, Pollution: Focus
(2004)
LDEO Publication Number:
6440
Pages:
469-482
Volume:
4
Redox control of arsenic mobilization in Bangladesh groundwater
Zheng, Y.; Stute, M.; van Geen, A.; Gavrieli, I.; Dhar, R.; Simpson, H. J.; Schlosser, P.; Ahmed, K. M.
Applied Geochemistry
(2004)
Issue:
2
Pages:
201-214
Volume:
19
DOI 10.1016/j.apgeochem.2003.09.007

2003

Arsenic mobilization under reducing conditions beneath a landfill in Maine.
Keimowitz, A. R.; Datta, S.; Stute, M.; Simpson, H. J.; Chillrud, S. N.; Tsang, M.; Ross, J.
Abstracts of Papers of the American Chemical Society
(2003)
Pages:
U584-U584
Volume:
226
Stable lead isotopes, contaminant metals and radionuclides in upper Hudson River sediment cores: implications for improved time stratigraphy and transport processes
Chillrud, S. N.; Hemming, S.; Shuster, E. L.; Simpson, H. J.; Bopp, R. F.; Ross, J. M.; Pederson, D. C.; Chaky, D. A.; Tolley, L. R.; Estabrooks, F.
Chemical Geology
(2003)
Issue:
1-2
LDEO Publication Number:
6412
Pages:
53-70
Volume:
199
Doi 10.1016/S0009-2541(03)00055-X

2002

Promotion of well-switching to mitigate the current arsenic crisis in Bangladesh
van Geen, A.; Ahsan, H.; Horneman, A. H.; Dhar, R. K.; Zheng, Y.; Hussain, I.; Ahmed, K. M.; Gelman, A.; Stute, M.; Simpson, H. J.; Wallace, S.; Small, C.; Parvez, F.; Slavkovich, V.; Lolacono, N. J.; Becker, M.; Cheng, Z.; Momotaj, H.; Shahnewaz, M.; Sed
Bulletin of the World Health Organization
(2002)
Issue:
9
Pages:
732-737
Volume:
80
Tracing groundwater transport underneath a landfill with SF6, Br, and H-3/He-3
Stute, M.; Simpson, H. J.; Chillrud, S. N.; Law-Wai, E.; Schlosser, P.
Geochimica Et Cosmochimica Acta
(2002)
Issue:
15A
Pages:
A749-A749
Volume:
66

2001

Refuse incinerator particulate emissions and combustion residues for New York City during the 20th century
Walsh, D. C.; Chillrud, S. N.; Simpson, H. J.; Bopp, R. F.
Environmental Science & Technology
(2001)
Issue:
12
Pages:
2441-2447
Volume:
35

1999

Arizona precipitation response to the Southern Oscillation: A potential water management tool
Simpson, H. J.; Colodner, D. C.
Water Resources Research
(1999)
Issue:
12
Pages:
3761-3769
Volume:
35
Twentieth century atmospheric metal fluxes into Central Park Lake, New York City
Chillrud, S. N.; Bopp, R. F.; Simpson, H. J.; Ross, J. M.; Shuster, E. L.; Chaky, D. A.; Walsh, D. C.; Choy, C. C.; Tolley, L. R.; Yarme, A.
Environmental Science & Technology
(1999)
Issue:
5
Pages:
657-662
Volume:
33

1998

Trends in chlorinated hydrocarbon levels in Hudson River basin sediments
Bopp, R. F.; Chillrud, S. N.; Shuster, E. L.; Simpson, H. J.; Estabrooks, F. D.
Environmental Health Perspectives
(1998)
Pages:
1075-1081
Volume:
106
Variability in atmospheric chlorofluorocarbons (CCl3F and CCl2F2) near a large urban area: Implications for groundwater dating
Ho, D. T.; Schlosser, P.; Smethie, W. M.; Simpson, H. J.
Environmental Science & Technology
(1998)
Issue:
16
Pages:
2377-2382
Volume:
32
A H-3/He-3 study of ground water flow in a fractured bedrock aquifer
Aeschbach-Hertig, W.; Schlosser, P.; Stute, M.; Simpson, H. J.; Ludin, A.; Clark, J. F.
Ground Water
(1998)
Issue:
4
Pages:
661-670
Volume:
36

1996

SF6-He-3 tracer release experiment: A new method of determining longitudinal dispersion coefficients in large rivers
Clark, J. F.; Schlosser, P.; Stute, M.; Simpson, H. J.
Environmental Science & Technology
(1996)
Issue:
5
Pages:
1527-1532
Volume:
30

1995

Chlorofluorocarbons in the Hudson Estuary during Summer Mouths
Clark, J. F.; Smethie, W. M.; Simpson, H. J.
Water Resources Research
(1995)
Issue:
10
Pages:
2553-2560
Volume:
31
Dissolved-Oxygen in Lower Hudson Estuary - 1978-93
Clark, J. F.; Simpson, H. J.; Bopp, R. F.; Deck, B. L.
Journal of Environmental Engineering-Asce
(1995)
Issue:
10
Pages:
760-763
Volume:
121
Gas Transfer Velocities for Sf6 and He-3 in a Small Pond at Low Wind Speeds
Clark, J. F.; Schlosser, P.; Wanninkhof, R.; Simpson, H. J.; Schuster, W. S. F.; Ho, D. T.
Geophysical Research Letters
(1995)
Issue:
2
Pages:
93-96
Volume:
22

1994

Delivery of Marine Chloride in Precipitation and Removal by Rivers in the Murray-Darling Basin, Australia
Simpson, H. J.; Herczeg, A. L.
Journal of Hydrology
(1994)
Issue:
1-4
Pages:
323-350
Volume:
154
Gas-Exchange Rates in the Tidal Hudson River Using a Dual Tracer Technique
Clark, J. F.; Wanninkhof, R.; Schlosser, P.; Simpson, H. J.
Tellus Series B-Chemical and Physical Meteorology
(1994)
Issue:
4
Pages:
274-285
Volume:
46

1993

Forecasting Annual Discharge of River Murray, Australia, from a Geophysical Model of Enso
Simpson, H. J.; Cane, M. A.; Lin, S. K.; Zebiak, S. E.; Herczeg, A. L.
Journal of Climate
(1993)
Issue:
2
Pages:
386-391
Volume:
6
Sediment-Derived Chronologies of Persistent Contaminants in Jamaica Bay, New-York
Bopp, R. F.; Simpson, H. J.; Chillrud, S. N.; Robinson, D. W.
Estuaries
(1993)
Issue:
3B
Pages:
608-616
Volume:
16
Annual River Discharge in Southeastern Australia Related to El-Nino Southern Oscillation Forecasts of Sea-Surface Temperatures
Simpson, H. J.; Cane, M. A.; Herczeg, A. L.; Zebiak, S. E.; Simpson, J. H.
Water Resources Research
(1993)
Issue:
11
Pages:
3671-3680
Volume:
29
Transport of Soluble Salts in a Large Semiarid Basin - River Murray, Australia
Herczeg, A. L.; Simpson, H. J.; Mazor, E.
Journal of Hydrology
(1993)
Issue:
1-4
Pages:
59-84
Volume:
144

1992

Gas-Exchange in a Contaminated Estuary Inferred from Chlorofluorocarbons
Clark, J. F.; Simpson, H. J.; Smethie, W. M.; Toles, C.
Geophysical Research Letters
(1992)
Issue:
11
Pages:
1133-1136
Volume:
19
Stable Isotope Composition of Water-Vapor as an Indicator of Transpiration Fluxes from Rice Crops
Brunel, J. P.; Simpson, H. J.; Herczeg, A. L.; Whitehead, R.; Walker, G. R.
Water Resources Research
(1992)
Issue:
5
Pages:
1407-1416
Volume:
28
Geochemistry and Loading History of Phosphate and Silicate in the Hudson Estuary
Clark, J. F.; Simpson, H. J.; Bopp, R. F.; Deck, B.
Estuarine Coastal and Shelf Science
(1992)
Issue:
3
Pages:
213-233
Volume:
34
Stable Isotope Ratios in Irrigation Water Can Estimate Rice Crop Evaporation
Simpson, H. J.; Herczeg, A. L.; Meyer, W. S.
Geophysical Research Letters
(1992)
Issue:
4
Pages:
377-380
Volume:
19

1991

Fluxes of Dissolved Inorganic Carbon and Reactor-Derived C-14 from the Hudson River to the New-York Bight
Garvey, E. A.; Simpson, H. J.; Mathieu, G.
Abstracts of Papers of the American Chemical Society
(1991)
Pages:
14-Geoc
Volume:
202
Salinity and Evaporation in the River Murray Basin, Australia
Simpson, H. J.; Herczeg, A. L.
Journal of Hydrology
(1991)
Issue:
1-2
Pages:
1-27
Volume:
124
A Major Incident of Dioxin Contamination - Sediments of New-Jersey Estuaries
Bopp, R. F.; Gross, M. L.; Tong, H.; Simpson, H. J.; Monson, S. J.; Deck, B. L.; Moser, F. C.
Environmental Science & Technology
(1991)
Issue:
5
Pages:
951-956
Volume:
25
Stable Isotopes as an Indicator of Evaporation in the River Murray, Australia
Simpson, H. J.; Herczeg, A. L.
Water Resources Research
(1991)
Issue:
8
Pages:
1925-1935
Volume:
27

1990

Analysis of Dated Sediment Samples from the Newark Bay Area for Selected Pcdd Fs
Tong, H. Y.; Monson, S. J.; Gross, M. L.; Bopp, R. F.; Simpson, H. J.; Deck, B. L.; Moser, F. C.
Chemosphere
(1990)
Issue:
10-12
Pages:
1497-1502
Volume:
20

1988

Uranium and Radium Mobility in Groundwaters and Brines within the Delaware Basin, Southeastern New-Mexico, USA
Herczeg, A. L.; Simpson, H. J.; Anderson, R. F.; Trier, R. M.; Mathieu, G. G.; Deck, B. L.
Chemical Geology
(1988)
Issue:
2
Pages:
181-196
Volume:
72

1985

Plutonium and Radiocesium in the Water Column of the Hudson River Estuary
Linsalata, P.; Simpson, H. J.; Olsen, C. R.; Cohen, N.; Trier, R. M.
Environmental Geology and Water Sciences
(1985)
Issue:
4
Pages:
193-204
Volume:
7

1984

An Estuarine Fine-Particle Budget Determined from Radionuclide Tracers
Olsen, C. R.; Cutshall, N. H.; Larsen, I. L.; Simpson, H. J.; Trier, R. M.; Bopp, R. F.
Geo-Marine Letters
(1984)
Issue:
3-4
Pages:
157-160
Volume:
4

1983

Brackish-Water Aquaculture in Pyrite-Bearing Tropical Soils
Simpson, H. J.; Ducklow, H. W.; Deck, B.; Cook, H. L.
Aquaculture
(1983)
Issue:
3-4
Pages:
333-350
Volume:
34

1982

Chlorinated Hydrocarbons and Radionuclide Chronologies in Sediments of the Hudson River and Estuary, New-York
Bopp, R. F.; Simpson, H. J.; Olsen, C. R.; Trier, R. M.; Kostyk, N.
Environmental Science & Technology
(1982)
Issue:
10
Pages:
666-676
Volume:
16
Radionuclides in Mono Lake, California
Simpson, H. J.; Trier, R. M.; Toggweiler, J. R.; Mathieu, G.; Deck, B. L.; Olsen, C. R.; Hammond, D. E.; Fuller, C.; Ku, T. L.
Science
(1982)
Issue:
4545
Pages:
512-514
Volume:
216

1981

Plutonium, Radiocesium and Radiocobalt in Sediments of the Hudson River Estuary
Olsen, C. R.; Simpson, H. J.; Trier, R. M.
Earth and Planetary Science Letters
(1981)
Issue:
3
Pages:
377-392
Volume:
55
Polychlorinated-Biphenyls in Sediments of the Tidal Hudson River, New-York
Bopp, R. F.; Simpson, H. J.; Olsen, C. R.; Kostyk, N.
Environmental Science & Technology
(1981)
Issue:
2
Pages:
210-216
Volume:
15
Suspended-Particle Concentrations, Compositions and Fluxes in the Hudson Estuary
Olsen, C. R.; Simpson, H. J.
Estuaries
(1981)
Issue:
3
Pages:
291-291
Volume:
4
Reactor-Released Radionuclides in Susquehanna River Sediments
Olsen, C. R.; Larsen, I. L.; Cutshall, N. H.; Donoghue, J. F.; Bricker, O. P.; Simpson, H. J.
Nature
(1981)
Issue:
5838
Pages:
242-245
Volume:
294
Sediment Mixing and Accumulation Rate Effects on Radionuclide Depth Profiles in Hudson Estuary Sediments
Olsen, C. R.; Simpson, H. J.; Peng, T. H.; Bopp, R. F.; Trier, R. M.
Journal of Geophysical Research-Oceans and Atmospheres
(1981)
Issue:
Nc11
Pages:
1020-1028
Volume:
86

1980

Reactor-Released Radionuclides and Fine-Grained Sediment Transport and Accumulation Patterns in Barnegat Bay, New-Jersey and Adjacent Shelf Waters
Olsen, C. R.; Biscaye, P. E.; Simpson, H. J.; Trier, R. M.; Kostyk, N.; Bopp, R. F.; Li, Y. H.; Feely, H. W.
Estuarine and Coastal Marine Science
(1980)
Issue:
2
Pages:
119-142
Volume:
10
Fallout Plutonium in an Alkaline, Saline Lake
Simpson, H. J.; Trier, R. M.; Olsen, C. R.; Hammond, D. E.; Ege, A.; Miller, L.; Melack, J. M.
Science
(1980)
Issue:
4435
Pages:
1071-1073
Volume:
207

1979

Fate of Fossil-Fuel Carbon-Dioxide and the Global Carbon Budget
Broecker, W. S.; Takahashi, T.; Simpson, H. J.; Peng, T. H.
Science
(1979)
Issue:
4417
Pages:
409-418
Volume:
206

1978

Geochemical Analysis of Sediments and Sedimentation in Hudson Estuary
Olsen, C. R.; Simpson, H. J.; Bopp, R. F.; Williams, S. C.; Peng, T. H.; Deck, B. L.
Journal of Sedimentary Petrology
(1978)
Issue:
2
Pages:
401-418
Volume:
48
Sources of Heavy-Metals in Sediments of Hudson River Estuary
Williams, S. C.; Simpson, H. J.; Olsen, C. R.; Bopp, R. F.
Marine Chemistry
(1978)
Issue:
3
Pages:
195-213
Volume:
6
Heavy-Metals in Sediments of Foundry Cove, Cold-Spring, New-York
Bower, P. M.; Simpson, H. J.; Williams, S. C.; Li, Y. H.
Environmental Science & Technology
(1978)
Issue:
6
Pages:
683-687
Volume:
12

1977

Anthropogenic Radionuclides as Tracers for Recent Sediment Deposition in Hudson Estuary
Olsen, C. R.; Simpson, H. J.; Trier, R. M.
Transactions-American Geophysical Union
(1977)
Issue:
6
Pages:
406-406
Volume:
58
Pcbs and Cs-137 in Sediments of Hudson Estuary
Bopp, R. F.; Simpson, H. J.; Olsen, C. R.
Transactions-American Geophysical Union
(1977)
Issue:
6
Pages:
407-407
Volume:
58
Flux of Ra-226 from Estuarine and Continental-Shelf Sediments
Li, Y. H.; Mathieu, G.; Biscaye, P.; Simpson, H. J.
Earth and Planetary Science Letters
(1977)
Issue:
2
Pages:
237-241
Volume:
37
Rn-222 Distribution and Transport across Sediment-Water Interface in Hudson River Estuary
Hammond, D. E.; Simpson, H. J.; Mathieu, G.
Journal of Geophysical Research-Oceans and Atmospheres
(1977)
Issue:
27
Pages:
3913-3920
Volume:
82

1976

Radiocarbon Dating of Estuarine Carbonate Materials
Simpson, H. J.; Peng, T. H.; Olsen, C. R.; Williams, S. C.
Aapg Bulletin-American Association of Petroleum Geologists
(1976)
Issue:
4
Pages:
723-724
Volume:
60
Sedimentation-Rates in Hudson River Estuary
Olsen, C. R.; Simpson, H. J.; Williams, S. C.
Aapg Bulletin-American Association of Petroleum Geologists
(1976)
Issue:
4
Pages:
703-703
Volume:
60
Man-Made Radionuclides and Sedimentation in Hudson River Estuary
Simpson, H. J.; Olsen, C. R.; Trier, R. M.; Williams, S. C.
Science
(1976)
Issue:
4261
Pages:
179-183
Volume:
194

1975

Methane and Radon-222 as Tracers for Mechanisms of Exchange across Sediment-Water Interface in Hudson River Estuary
Hammond, D. E.; Simpson, H. J.; Mathieu, G.
Acs Symposium Series
(1975)
Issue:
18
Pages:
119-132
Nutrient Budgets in Hudson River Estuary
Simpson, H. J.; Hammond, D. E.; Deck, B. L.; Williams, S. C.
Acs Symposium Series
(1975)
Issue:
18
Pages:
618-635

1973

Radon in Hudson River Estuary
Simpson, H. J.; Rouen, J. E.; Mathieu, G.
Transactions-American Geophysical Union
(1973)
Issue:
4
Pages:
300-301
Volume:
54
New Method for Determining Total Carbonate Ion Concentration in Saline Waters
Simpson, H. J.; Broecker, W. S.
Limnology and Oceanography
(1973)
Issue:
3
Pages:
426-440
Volume:
18