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Title: Mercury in freshwater fish and clams from the Cerro Prieto geothermal field of Baja California, Mexico

Several reports have expressed concern about the potential toxicity hazards and environmental contamination of mercury emissions from geothermal fields in Hawaii, New Zealand, Iceland, California and Mexico. Inorganic mercury discharged from the sources may accumulate in the sediments of rivers or lakes and, after microbiological methylation may become concentrated in the edible tissue of fish. This study involves assessment of geothermal mercury pollution arising from Cerro Prieto. For this purpose the fish Tilapia mossambica and the clam Corbicula fluminea were collected from the freshwater courses of the Mexicali Valley. Reports indicated that in 1982, 13 t of T. mossambica were destinated for human consumption. A further aim was to provide base line data and information relevant to the level of mercury contamination for the Mexicali Valley.
Authors:
; ;
Publication Date:
OSTI Identifier:
6877971
Resource Type:
Journal Article
Resource Relation:
Journal Name: Bull. Environ. Contam. Toxicol.; (United States); Journal Volume: 41:2
Research Org:
Universidad Autonoma de Baja California (Mexico)
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CERRO PRIETO GEOTHERMAL FIELD; HEALTH HAZARDS; CLAMS; QUANTITATIVE CHEMICAL ANALYSIS; FISHES; MERCURY COMPOUNDS; UPTAKE; HUMAN POPULATIONS; WATER POLLUTION; ANIMALS; AQUATIC ORGANISMS; CHEMICAL ANALYSIS; GEOTHERMAL FIELDS; HAZARDS; INVERTEBRATES; MOLLUSCS; POLLUTION; POPULATIONS; VERTEBRATES 560300* -- Chemicals Metabolism & Toxicology