Institution
Arcadis NV
Company•Prague, Czechia•
About: Arcadis NV is a company organization based out in Prague, Czechia. It is known for research contribution in the topics: Groundwater & Groundwater flow. The organization has 802 authors who have published 821 publications receiving 17260 citations.
Topics: Groundwater, Groundwater flow, Storm surge, Storm, Combustion
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the authors investigated the mechanism of As release to anoxic ground water in alluvial aquifers, and sampled ground waters from 3 piezometer nests, 79 shallow ( 80 m) wells, in an area 750 m by 450 m, just north of Barasat, near Kolkata (Calcutta), in southern West Bengal.
809 citations
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TL;DR: In this article, a detailed literature search was performed to collect and collate available data reporting emissions of organic air toxics from open burning sources, including accidental fires, agricultural burning of Crop Residue, agricultural plastic film, animal carcasses, Automobile Shredder Fluff Fires, Camp Fires, Car- Boat-Train (the vehicle not cargo) Fires, Construction Debris Fires, Copper Wire Reclamation, Crude Oil and Oil Spill Fires, Electronics Waste, Fiberglass, Fireworks, Grain Silo Fires, Household Waste, Land Clearing
441 citations
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TL;DR: Recommendations for developing potentially useful metrics for setting international standards are suggested for cookstove power, energy efficiency, and fuel use.
Abstract: Realistic metrics and methods for testing household biomass cookstoves are required to develop standards needed by international policy makers, donors, and investors. Application of consistent test practices allows emissions and energy efficiency performance to be benchmarked and enables meaningful comparisons among traditional and advanced stove types. In this study, 22 cookstoves burning six fuel types (wood, charcoal, pellets, corn cobs, rice hulls, and plant oil) at two fuel moisture levels were examined under laboratory-controlled operating conditions as outlined in the Water Boiling Test (WBT) protocol, Version 4. Pollutant emissions (carbon dioxide, carbon monoxide, methane, total hydrocarbons, and ultrafine particles) were continuously monitored. Fine particle mass was measured gravimetrically for each WBT phase. Additional measurements included cookstove power, energy efficiency, and fuel use. Emission factors are given on the basis of fuel energy, cooking energy, fuel mass, time, and cooking tas...
433 citations
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TL;DR: A coupled system of wind, wind wave, and coastal circulation models has been implemented for southern Louisiana and Mississippi to simulate riverine flows, tides, wind waves, and hurricane storm surge in the region as discussed by the authors.
Abstract: A coupled system of wind, wind wave, and coastal circulation models has been implemented for southern Louisiana and Mississippi to simulate riverine flows, tides, wind waves, and hurricane storm surge in the region. The system combines the NOAA Hurricane Research Division Wind Analysis System (H*WIND) and the Interactive Objective Kinematic Analysis (IOKA) kinematic wind analyses, the Wave Model (WAM) offshore and Steady-State Irregular Wave (STWAVE) nearshore wind wave models, and the Advanced Circulation (ADCIRC) basin to channel-scale unstructured grid circulation model. The system emphasizes a high-resolution (down to 50 m) representation of the geometry, bathymetry, and topography; nonlinear coupling of all processes including wind wave radiation stress-induced set up; and objective specification of frictional parameters based on land-cover databases and commonly used parameters. Riverine flows and tides are validated for no storm conditions, while winds, wind waves, hydrographs, and high wa...
397 citations
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TL;DR: The corrections for aging and for modifying effects of soil properties in metal-salt-amended soils are shown to be the main factors by which PNEC values rise above the natural background range.
Abstract: Total concentrations of metals in soil are poor predictors of toxicity. In the last decade, considerable effort has been made to demonstrate how metal toxicity is affected by the abiotic properties of soil. Here this information is collated and shows how these data have been used in the European Union for defining predicted-no-effect concentrations (PNECs) of Cd, Cu, Co, Ni, Pb, and Zn in soil. Bioavailability models have been calibrated using data from more than 500 new chronic toxicity tests in soils amended with soluble metal salts, in experimentally aged soils, and in field-contaminated soils. In general, soil pH was a good predictor of metal solubility but a poor predictor of metal toxicity across soils. Toxicity thresholds based on the free metal ion activity were generally more variable than those expressed on total soil metal, which can be explained, but not predicted, using the concept of the biotic ligand model. The toxicity thresholds based on total soil metal concentrations rise almost proportionally to the effective cation exchange capacity of soil. Total soil metal concentrations yielding 10% inhibition in freshly amended soils were up to 100-fold smaller (median 3.4-fold, n = 110 comparative tests) than those in corresponding aged soils or field-contaminated soils. The change in isotopically exchangeable metal in soil proved to be a conservative estimate of the change in toxicity upon aging. The PNEC values for specific soil types were calculated using this information. The corrections for aging and for modifying effects of soil properties in metal-salt-amended soils are shown to be the main factors by which PNEC values rise above the natural background range.
370 citations
Authors
Showing all 803 results
Name | H-index | Papers | Citations |
---|---|---|---|
David A. Frank | 68 | 201 | 17557 |
Eckhard Quandt | 49 | 334 | 8782 |
David A. Reckhow | 37 | 110 | 6675 |
Ian L. Ross | 34 | 149 | 5503 |
Sarina J. Ergas | 31 | 129 | 3412 |
Ronald Williams | 29 | 72 | 3634 |
J.K. Vrijling | 28 | 155 | 3371 |
Joseph S. Meyer | 28 | 80 | 6280 |
Koen Oorts | 22 | 44 | 2176 |
Frederik Verdonck | 22 | 66 | 1184 |
Matthew A. Wilson | 21 | 26 | 8161 |
C. Paul Nathanail | 19 | 60 | 1028 |
Dale F. Rucker | 19 | 80 | 1694 |
Dennis Tabor | 18 | 33 | 942 |
Ram A. Hashmonay | 17 | 54 | 861 |