Determination of Cadmium and Lead Species in the Water Column of the Jose Antonio Alzate Reservoir, Mexico

Contamination by dissolved cadmium and lead was studied at two different depths at four sites of the Jose Antonio Alzate Reservoir in central Mexico. Total dissolved levels were found to be between 0.3 and 0.6 μg/L for cadmium and between 2.1 and 4.8 μg/L for lead. Chemical dissolved speciation show...

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Bibliographic Details
Published in:Water environment research 2000-03, Vol.72 (2), p.132-140
Main Authors: Quintal, Icela D. Barceló, Correa, Hugo E. Solís, Cortés, Carmen González, Pérez, Pedro Avila, García, Juan A.
Format: Article
Language:English
Subjects:
Analysis methods
Applied sciences
CADMIUM
Colloids
CONTAMINATION
Continental surface waters
DISSOLVED CHEMICAL SPECIATION
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
ENVIRONMENTAL SCIENCES
Exact sciences and technology
Fractions
Freshwater
HEAVY METALS
Hydrogeology
Hydrology. Hydrogeology
LEAD
MEXICO
Mexico, Jose Antonio Alzate Reservoir
MONITORING
Natural water pollution
Pollution
Pollution, environment geology
Research Papers
Resins
Speciation
Species
Surface water
WATER POLLUTION
WATER RESERVOIR
WATER RESERVOIRS
Water samples
Water treatment and pollution
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Summary:Contamination by dissolved cadmium and lead was studied at two different depths at four sites of the Jose Antonio Alzate Reservoir in central Mexico. Total dissolved levels were found to be between 0.3 and 0.6 μg/L for cadmium and between 2.1 and 4.8 μg/L for lead. Chemical dissolved speciation showed primarily inorganic lead species, whereas cadmium species were detected in both inorganic and organic fractions. Most of the lead and cadmium species were removable by cationic exchange. No specific distribution trend was noted for the metal species in the reservoir, although a difference between the surface and bottom samples resulted from physical and chemical factors. Sedimentation and adsorption seemed to help with the natural scavenging process of reservoir water metals.
ISSN:1061-4303
1554-7531
DOI:10.2175/106143000X137194