+ Translate
+ Most Popular
The pigeon tick (Argas reflexus): its biology, ecology, and epidemiological aspects
Prevalence of hemoglobin abnormalities in Kebili (Tunisian South)
Lipogranuloma: a preventable complication of dacryocystorhinostomy
Value of basal plasma cortisol assays in the assessment of pituitary-adrenal insufficiency
Bees from the Belgian Congo. The acraensis group of Anthophora
Placing gingival retraction cord
Total serum IgE, allergy skin testing, and the radioallergosorbent test for the diagnosis of allergy in asthmatic children
Acariens plumicoles Analgesoidea parasites des oiseaux du Maroc
Injuries of terminal phalanges of the fingers in children
Biology of flowering and nectar production in pear (Pyrus communis)
Das Reliktvorkommen der Aspisviper (Vipera aspis L.) im Schwarzwald
Hydrological modelling of drained blanket peatland
Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases
Cyto genetic analyses of lymphocyte cultures after exposure to calcium cyclamate
Axelrodia riesei, a new characoid fish from Upper Rio Meta in Colombia With remarks concerning the genus Axelrodia and description of a similar, sympatric, Hyphessobrycon-species
Favorable evolution of a case of tuberculosis of pancreas under antibiotic action
RIFM fragrance ingredient safety assessment, Valencene, CAS Registry Number 4630-07-3
Parenteral microemulsions: an overview
Temperate pasture: management for grazing and conservation
Evaluation of a new coprocessed compound based on lactose and maize starch for tablet formulation
Thermal expansion and cracking of three confined water-saturated igneous rocks to 800C
Revision of the genera of the tribe Stigmoderini (Coleoptera: Buprestidae) a discussion of phylogenetic relationships
Anal tuberculosis. Report of a case
Gastric tuberculosis in the past and present
Adaptive responses of the cardiovascular system to prolonged spaceflight conditions: assessment with Holter monitoring

A preliminary study of mercury contamination in the surface soil and river sediment of the Roscio District, Bolivar State, Venezuela

A preliminary study of mercury contamination in the surface soil and river sediment of the Roscio District, Bolivar State, Venezuela

Science of the Total Environment 79(3): 233-239

ISSN/ISBN: 0048-9697

PMID: 2727674

DOI: 10.1016/0048-9697(89)90339-2

The present study constitutes a comparison of mercury in surface soil and river sediments of a contaminated and an uncontaminated area of Venezuela. In the contaminated area, gold prospectors have been using mercury to separate gold from auriferous sand and rock powders for many years. The baseline level of mercury in the river sediments of the uncontaminated area (Manzanares River, Sucre State) was 0.06 micrograms g-1, while in the contaminated area in the Roscio District of Bolivar State the concentration varied from 0.12 to 129 micrograms g-1. In the river sediments the average level of mercury was 0.71 micrograms g-1 and in the surface soil of the working areas 37 micrograms g-1, which shows a significant increase in the mercury level in the contaminated areas. This high level of mercury in the soil and sediments constitutes a serious risk to public health in the contaminated area, where the local people use the water for drinking and other domestic purposes; moreover, they also consume fish from these rivers.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 006959782

Download citation: RISBibTeXText

Related references

Fish inventory of the Caura River Basin, Bolivar State, Venezuela Inventario de los peces de la Cuenca del Rio Caura, Estado Bolivar, Venezuela. Acta Biologica Venezuelica. Diciembre; 194: 61-72, 1999

Identification of conservation priority areas in the Caura River basin, Bolivar State, Venezuela Identificacion de areas prioritarias de conservacion en la cuenca del Rio Caur, Estado Bolivar, Venezuela. Acta Biologica Venezuelica 22(3-4): 37-65, 2005

Trophic ecology of some important fish in floodplain lagoons of the lower River Caura, Bolivar State, Venezuela Ecologia trofica de algunos peces importantes en lagunas de inundacion del bajo rio Caura, Estado Bolivar, Venezuela. Memoria de la Fundacion la Salle de Ciencias Naturales 2003 enero-diciembre; 62159-160: 197-233, 2004

Preliminary inventory and biological observations of the anopheline mosquitoes Diptera Culicidae of a mining region of Bolivar State, Venezuela Inventario preliminar y observaciones biologicas sobre los anofelinos Diptera Culicidae de una region minera del estado Bolivar, Venezuela. Boletin de Entomologia Venezolana. Julio; 131: 17-26, 1998

Avian and mammal characterization at northern savannas at Bolivar State, Venezuela Caracterizacion de la avifauna y mastofauna de las sabanas del norte del Estado Bolivar, Venezuela. Acta Cientifica Venezolana 481: 47-57, 1997

Mercury contamination of surface water and fish in a gold mining region (Cuyuni river basin, Venezuela). International Journal of Environment and Pollution 33(2-3): 260-274, 2008

Mercury fractioning in contaminated soils of El Callao, Bolivar State, Venezuela. Agronomia Tropical Maracay 53(3): 331-345, 2003

Comparison of the methods to analyse mercury in soils from El Callao, Bolivar state, Venezuela. Interciencia 27(4): 191-194, 2002

Geology and gold mineralization of the El Callao District, Bolivar State, Venezuela. Simposio International del Oro en Venezuela 3: 143-147, 1995

Mercury in surface sediments of the Manzanares River and its surrounding area, Sucre State, Venezuela. Boletin del Instituto Oceanografico de la Universidad de Oriente 26(1-2): 91-96, 1987

Identification of anopheline breeding sites in an endemic area of Bolivar state, Venezuela Identificacion de criaderos de anofelinos en un area endemica del estado Bolivar, Venezuela. Boletin de la Direccion de Malariologia y Saneamiento Ambiental 40(1-2): 21-30, 2000

Cross sectional variation in the chemistry and suspended sediment load of the orinoco river at ciudad bolivar venezuela. Acta Cientifica Venezolana 35(5-6): 382-385, 1984

Diamond deposits from the Guaniamo River, Bolivar State, Venezuela. Boletin de la Sociedad Venezolana de Geologos 19(1-2): 41-49, 1994

Mineral potential of the Aro River basin, Bolivar State, Venezuela. Geos (Caracas) 38: 34-35, 2005

Preliminary reconnaissance of the chimanta massif state of bolivar venezuela. Acta Cientifica Venezolana 37(1): 25-42, 1986