Search results for: J.E. Martı́n

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article

Historical impact in an estuary of some mining and industrial activities evaluated through the analysis by TTPIXE of a dated sediment core

J.E. Martı́n, R. Garcı́a-Tenorio, E.G. San Miguel, M.Á. Respaldiza, more

Nuclear Inst. and Methods in Physics Research, B > 2002 > 189 > 1-4 > 153-157

In previous works it was found that sediments from the Huelva estuary (SW of Spain) are contaminated due to some mining and industrial activities that are concerned with the extraction of pyrites and the production of fertilizers. In the present study we have evaluated the evolution of this estuarine contamination during the last two centuries, when the most relevant episodes of the activities mentioned...

article

The state of the Guadiamar riverbed after the environmental disaster of 1998 analysed by TTPIXE

J.E. Martı́n, M.Á. Respaldiza, J. González-Labajo

Nuclear Inst. and Methods in Physics Research, B > 2002 > 188 > 1-4 > 102-105

In a previous paper, a PIXE analysis of thirteen sediment samples collected from the Guadiamar riverbed (SW of Spain) in the spring of 1996, exactly between Aznalcollar mines and Donana National Park, was presented. The results indicated the S, Cu, Zn, As and Pb contamination along the riverbed due to the mining activity. It was noted that those results would serve, in the first place, as reference...

article

2 ³ ⁰ Th/ ² ³ ² Th activity ratios as a chronological marker complementing ² ¹ ⁰ Pb dating in an estuarine system affected by industrial releases

E.G. San Miguel, J.P. Bolı́var, R. Garcı́a-Tenorio, J.E. Martı́n

Environmental Pollution > 2001 > 112 > 3 > 361-368

The main purpose of this research is to show the usefulness of the ² ³ ⁰ Th/ ² ³ ² Th activity ratios as a chronological marker that can be helpful in the dating of sediment cores collected from an estuarine system located in the south west of Spain highly polluted by wastes from fertilizer plants. These wastes, being released for 30 years, and enriched in radionuclides...

article

Influence of the mining activity on sediments from the Odiel river (sw of Spain) analyzed by TTPIXE

M.F. Da Silva, J.P. Bolívar, R. García-Tenorio, J.E. Martín, more

Nuclear Inst. and Methods in Physics Research, B > 1998 > 136-138 > 1000-1004

Sediments from all over the Odiel river (southwest of Spain) were studied by Thick Target Proton Induced X-ray Emission (TTPIXE). For the analyses, 2 MeV protons from the 3 MV Van de Graaff accelerator of the ITN, Sacavem (Portugal), were used. Two runs for every sample were carried out: with and without a 1 mm plastic filter in front of the Si(Li) detector. The concentrations of 26 elements were...

article

Environmental impact of fertilizer industries evaluated by PIXE

R. García-Tenorio, J.P. Bolívar, M.F. Da Silva, M.A. Respaldiza, more

Nuclear Inst. and Methods in Physics Research, B > 1995 > 103 > 4 > 477-481

In this paper the environmental impact of several phosphogypsum piles sited in the southwest of Spain is studied using multielemental analysis by PIXE of 12 salt marsh and soil samples collected in their surroundings. The piles are used to store the main by-product formed in the production of phosphoric acid and phosphate fertilizers. The samples collected were bombarded with 2.5 MeV protons from...

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Keywords

PIXE (3)
SEDIMENT (2)
2 1 0 PB DATING (1)
210PB (1)
ESTUARINE SYSTEM (1)
ESTUARY (1)
FERTILIZER FACTORIES (1)
GUADIAMAR (1)
HEAVY METAL (1)
HUELVA (1)
MINING (1)
RIVER SEDIMENT (1)
SPAIN (1)
TH-ISOTOPES (1)
[PHYSICAL ASTRONOMY CLASSIFICATION SCHEME] 82.80.EJ (1)
[PHYSICAL ASTRONOMY CLASSIFICATION SCHEME] 89.60.-K (1)
[PHYSICAL ASTRONOMY CLASSIFICATION SCHEME] 93.30.GE (1)
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Search results for: J.E. Martı́n

Historical impact in an estuary of some mining and industrial activities evaluated through the analysis by TTPIXE of a dated sediment core

The state of the Guadiamar riverbed after the environmental disaster of 1998 analysed by TTPIXE

2 ³ ⁰ Th/ ² ³ ² Th activity ratios as a chronological marker complementing ² ¹ ⁰ Pb dating in an estuarine system affected by industrial releases

Influence of the mining activity on sediments from the Odiel river (sw of Spain) analyzed by TTPIXE

Environmental impact of fertilizer industries evaluated by PIXE

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INFONA - science communication portal

Search results for: J.E. Martı́n

Historical impact in an estuary of some mining and industrial activities evaluated through the analysis by TTPIXE of a dated sediment core

The state of the Guadiamar riverbed after the environmental disaster of 1998 analysed by TTPIXE

2 3 0 Th/ 2 3 2 Th activity ratios as a chronological marker complementing 2 1 0 Pb dating in an estuarine system affected by industrial releases

Influence of the mining activity on sediments from the Odiel river (sw of Spain) analyzed by TTPIXE

Environmental impact of fertilizer industries evaluated by PIXE

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2 ³ ⁰ Th/ ² ³ ² Th activity ratios as a chronological marker complementing ² ¹ ⁰ Pb dating in an estuarine system affected by industrial releases