Search Results - "Hemond, H. F"

Validation of an Arsenic Sequential Extraction Method for Evaluating Mobility in Sediments by Keon, N. E, Swartz, C. H, Brabander, D. J, Harvey, C, Hemond, H. F

“…Arsenic (As) mobility and transport in the environment are strongly influenced by arsenic's associations with solid phases in soil and sediment. We have tested…”
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Controls on Arsenic Speciation and Solid-Phase Partitioning in the Sediments of a Two-Basin Lake by Jay, J. A, Blute, N. K, Lin, K, Senn, D, Hemond, H. F, Durant, J. L

“…Arsenic (As) regeneration from sediments of Spy Pond, a two-basin lake near Boston, MA, continues to result in seasonally elevated As levels despite the…”
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The role of microorganisms in elemental mercury formation in natural waters by MASON, R. P, MOREL, F. M. M, HEMOND, H. F

“…Gas evasion of elemental Hg (Hg degree ) from the open ocean plays a prominent role in the global mercury cycle. Elemental Hg is formed primarily by reduction…”
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Aqueous and solid phase arsenic speciation in the sediments of a contaminated wetland and riverbed by Blute, N.K., Jay, J.A., Swartz, C.H., Brabander, D.J., Hemond, H.F.

“…Mobility of As in the environment is controlled by its association with solid phases through adsorption and co-precipitation. To elucidate the mobilization…”
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Microbial Mobilization of Arsenic from Sediments of the Aberjona Watershed by Ahmann, Dianne, Krumholz, Lee R, Hemond, Harold F, Lovley, Derek R, Morel, François M. M

“…Arsenic mobilization from aquatic sediments is an issue of concern, as water-borne arsenic can migrate into pristine areas, endangering aquatic organisms and…”
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Trapped Methane Volume and Potential Effects on Methane Ebullition in a Northern Peatland by Fechner-Levy, Elizabeth J., Hemond, Harold F.

“…A novel way of estimating the gas bubble volume in the floating mat sediment of a peatland was developed at Thoreau's Bog in Concord, Massachuasetts…”
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The Production of Chemical Heterogeneity in Upper Mystic Lake by Knauer, K., Nepf, H. M., Hemond, H. F.

“…Chemical heterogeneity in a lake may arise from spatially and temporally nonuniform inputs or from spatially nonuniform transformation rates within the water…”
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Intra-Ring Variability of Cr, As, Cd, and Pb in Red Oak Revealed by Secondary Ion Mass Spectrometry: Implications for Environmental Biomonitoring by Brabander, D. J., Keon, N., Stanley, R. H. R., Hemond, H. F.

“…Reconstructing the history of ambient levels of metals by using tree-ring chemistry is controversial. This controversy can be resolved in part through the use…”
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Long‐term patterns in forest‐floor NITROGEN‐15 natural abundance at hubbard brook, nh by Pardo, L. H., Hemond, H. F., Montoya, J. P., Siccama, T. G.

“…To test the hypothesis that δ15N in the forest floor remains constant over time, we measured δ15N in forest‐floor samples from 1969, 1978, 1987, and 1992 at…”
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POTENTIAL EFFECTS OF CLIMATE CHANGE ON FRESHWATER ECOSYSTEMS OF THE NEW ENGLAND/MID-ATLANTIC REGION by MOORE, MARIANNE V., PACE, MICHAEL L., MATHER, JOHN R., MURDOCH, PETER S., HOWARTH, ROBERT W., FOLT, CAROL L., CHEN, CELIA Y., HEMOND, HAROLD F., FLEBBE, PATRICIA A., DRISCOLL, CHARLES T.

“…Numerous freshwater ecosystems, dense concentrations of humans along the eastern seaboard, extensive forests and a history of intensive land use distinguish…”
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Arsenic Mobility and Groundwater Extraction in Bangladesh by Harvey, Charles F., Swartz, Christopher H., Badruzzaman, A. B. M., Keon-Blute, Nicole, Yu, Winston, Ali, M. Ashraf, Jay, Jenny, Beckie, Roger, Niedan, Volker, Brabander, Daniel, Oates, Peter M., Ashfaque, Khandaker N., Islam, Shafiqul, Hemond, Harold F., Ahmed, M. Feroze

“…High levels of arsenic in well water are causing widespread poisoning in Bangladesh. In a typical aquifer in southern Bangladesh, chemical data imply that…”
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History of Toxic Metal Discharge to Surface Waters of the Aberjona Watershed by Spliethoff, Henry M, Hemond, Harold F

“…A history of waterborne export of toxic metals from the industrial/residential Aberjona Watershed, north of Boston, MA, has been reconstructed from an analysis…”
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Mobility of arsenic in a Bangladesh aquifer: Inferences from geochemical profiles, leaching data, and mineralogical characterization by Swartz, Christopher H., Blute, Nicole Keon, Badruzzman, Borhan, Ali, Ashraf, Brabander, Daniel, Jay, Jenny, Besancon, James, Islam, Shafiqul, Hemond, Harold F., Harvey, Charles F.

“…Aquifer geochemistry was characterized at a field site in the Munshiganj district of Bangladesh where the groundwater is severely contaminated by As. Vertical…”
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Population Dynamics of Two Toluene Degrading Bacterial Species in a Contaminated Stream by S. T.-L. Tay, F. H. Hemond, L. R. Krumholz, Cavanaugh, C. M., M. F. Polz

“…Toluene uptake by a benthic biofilm community was previously shown to vary seasonally from 0.03 m hr-1in winter to 0.2 m hr-1in summer in a…”
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Nitrate Controls on Iron and Arsenic in an Urban Lake by Senn, David B., Hemond, Harold F.

“…Aquatic ecosystems are often contaminated by multiple substances. Nitrate, a common aquatic pollutant, strongly influenced the cycling of arsenic (As) under…”
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Arsenic Sequestration by Ferric Iron Plaque on Cattail Roots by Blute, Nicole Keon, Brabander, Daniel J, Hemond, Harold F, Sutton, Stephen R, Newville, Matthew G, Rivers, Mark L

“…Typha latifolia (cattail) sequesters arsenic within predominantly ferric iron root coatings, thus decreasing mobility of this toxic element in wetland…”
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Recent Changes in Platinum Group Element Concentrations and Osmium Isotopic Composition in Sediments from an Urban Lake by Rauch, Sebastien, Hemond, Harold F, Peucker-Ehrenbrink, Bernhard

“…Automobile catalyst emissions have resulted in the occurrence of elevated Pt, Pd, and Rh concentration in the urban and roadside environment. We investigate…”
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Two New Mycobacterium Strains and Their Role in Toluene Degradation in a Contaminated Stream by TAY, S. T.-L, HEMOND, H. F, POLZ, M. F, CAVANAUGH, C. M, DEJESUS, I, KRUMHOLZ, L. R

“…Classifications Services AEM Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley Reddit…”
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Acid neutralizing capacity, alkalinity, and acid-base status of natural waters containing organic acids by Hemond, Harold F

“…When organic acids are present in natural waters, acid neutralizing capacity or alkalinity computations may be severely limited. A practical model for soft…”
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Human Cell Mutagens in Respirable Airborne Particles from the Northeastern United States. 2. Quantification of Mutagens and Other Organic Compounds by Pedersen, Daniel U, Durant, John L, Taghizadeh, Koli, Hemond, Harold F, Lafleur, Arthur L, Cass, Glen R

“…Few reports have characterized mutagenic compounds in respirable airborne particles (<2.5 micrometers in diameter; PM2.5) collected at different sites on a…”
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