Consulta: creatorFacets:"Dedeurwaerder, H."
Registros recuperados: 8
Data/hora: 08/06/2024 10:11:30

Boundary conditions for heavy metals at the air-sea interface
Provedor de dados: 27
Autores: Dehairs, F.A.; Dedeurwaerder, H.; Dejonghe, M.; Decadt, G.; Gillain, G.; Baeyens, W.F.J.; Elskens, I.
During 1980 and 1981 the aerosol burden as well as the wet and dry atmospheric fall-out of Cu, Cd, Pb, Zn, Fe and Mn to the sea have been studied in the Belgian coastal area. Atmospheric Cu, Zn and Cd are observed to be introduced into the sea mainly by wet fall-out, while Fe, Mn and also Pb have a dry and wet fall-out of similar magnitude. Of these elements, Cu, Zn and Cd have the highest washout factors. Furthermore, for all elements, excepted Mn, discrepancies exist between washout factors above land and sea, with values up to 5 times larger above the sea.On the scale of the North Sea, atmospheric fall-out of Cu, Zn, Pb and Cd exceeds by one order of magnitude the combined input of the rivers Scheldt, Rhine and Meuse, while fall-out of Fe and Mn is of...
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10065

Distribution, transport and fate of Bi, Cu, Cd, Hg, Pb, Sb and Zn in the Belgian coastal marine environment. Part IV: The river Scheldt as a transport route of heavy metals to the sea
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Wartel, S.; Dehairs, F.A.; Decadt, G.; Bogaert, M.; Gillain, G.; Dedeurwaerder, H.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/imisdocs/publications/286409.pdf

Particulate trace metals above the Southern Bight of the North Sea: 1. Analytical procedures and average aerosol concentrations
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Dedeurwaerder, H.
Heavy metal concentrations in total particulate suspended matter and size fractionated particulate suspended matter above the Southern Bight of the North Sea have been assessed. Most of the samples were collected from a light vessel; the total sampling period covered about 70 days at sea. Stringent precautions were taken during sampling, storage, handling and analysis of the samples. As a conclusion, we found that on a long-term basis the aerosol concentrations above the North Sea have a fairly homogeneous composition, but short-term variations probably resulting from point emissions were observed. The cascade impactor results indicated that Pb, Cu, Cd and Zu were carried by submicrometer aerosols, Na, Fe, Mn and Al by supermicrometer aerosols. Most of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Air pollution Atmospheric particulates Meteorology Seasonal variations Statistical analysis Trace metals Troposphere Winds ANE; North Sea; Southern Bight.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3106

Particulate trace metals above the Southern Bight of the North Sea: 2. Origin and behaviour of the trace metals
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Dedeurwaerder, H.
Ninety-six aerosol samples were collected in all seasons and wind conditions in the troposphere of the Southern Bight of the North Sea. About one third of these samples were collected with a six stage cascade impactor sampler. Considering that in each sample metals were analyzed, the data set we had to handle consisted of about 2000 results. In addition, wind directions and wind speeds are also included in this data set. To interpret all these results, we relied upon two methods: (1) enrichment factors were calculated and allowed us to identify some of the metal sources; (2) three factors resulted from a multivariate analysis method: in the first factor we only find Na, representing the marine component; the second factor includes Al (a crustal and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols Air pollution Atmospheric particulates Meteorology Seasonal variations Statistical analysis Trace metals Troposphere Winds ANE; North Sea; Southern Bight.
Ano: 1991
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3109

Microlayer metal excesses in a coastal North Sea area: relative contribution of dry fall-out
Provedor de dados: 27
Autores: Dehairs, F.A.; Dedeurwaerder, H.; Decadt, G.; Baeyens, J.; Gillain, G.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ANE; North Sea.
Ano: 1983
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10067

Dynamic patterns of dissolved nitrogen in the Southern Bight of the North Sea
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Mommaerts, J.-P.; Goeyens, L.; Dehairs, F.A.; Dedeurwaerder, H.; Decadt, G.
Spatial and temporal variations of dissolved inorganic nitrogen (DIN) have been assessed in onshore and offshore areas of the Southern Bight on the basis of several years' measurements. They indicate that both the residual flow lines and DIN isoconcentration lines run parallel with the coast except in the vicinity of important freshwater discharge points such as the Scheldt estuary. Evidence was found that the seasonal DIN oscillations are not created through fluctuations in input conditions at the lateral boundaries, despite considerable fluctuations in these inputs which include the English Channel (from 500 tons(t) N day&lt;sup&gt;-1&lt;/sup&gt; in June up to approximately 2000 t N day&lt;sup&gt;-1&lt;/sup&gt; in February) and also rivers such as the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dissolved organic nitrogen ANE; North Sea; Southern Bight.
Ano: 1984
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3310

Distribution, transport and fate of Bi, Cu, Cd, Hg, Pb, Sb and Zn in the Belgian coastal marine environment. Part II: Spatial, temporal and compartmental distribution in the water column
Provedor de dados: 27
Autores: Decadt, G.; Gillain, G.; Dehairs, F.A.; Dedeurwaerder, H.; Goeyens, L.; Baeyens, J.
Tipo: Info:eu-repo/semantics/article
Ano: 1984
URL: http://www.vliz.be/imisdocs/publications/268322.pdf

Distribution, transport and fate of Bi, Cu, Cd, Hg, Pb, Sb and Zn in the Belgian coastal marine environment. Part V: Interaction kinetics between dissolved inorganic mercury and estuarine suspended matter
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Decadt, G.; Dehairs, F.A.; Goeyens, L.; Dedeurwaerder, H.; Gillain, G.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.vliz.be/imisdocs/publications/286410.pdf