Leachable trace elements in San Francisco Bay sediments: indicators of sources and estuarine processes

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Environ. Geol.; (United States)

DOI:https://doi.org/10.1007/BF02380507· OSTI ID:5465375

Eaton, A

Heavy metals iron, manganese, copper, zinc, cobalt, and nickel in San Francisco Bay sediments were analyzed to determine heavy metal sources. Except for manganese, more than 50% of each metal present was in the residual state. Copper, zinc, and nickel leaching by pyrophosphate and oxalate indicates that these metals may be organically bound. Geographic variability of metal content in San Francisco Bay sediment indicates that most of the iron, manganese, cobalt, and nickel is supplied to bay sediments by the San Joaquin-Sacramento River system and is not directly contributed by municipal or industrial sources. Copper and zinc, however, are traced to municipal sources. Data from analyses of surface and subsurface sediment composition are provided. (1 map, 19 references, 9 tables)

• Research Organization: Johns Hopkins Univ
• OSTI ID: 5465375
• Journal Information: Environ. Geol.; (United States), Journal Name: Environ. Geol.; (United States) Vol. 2:6; ISSN ENGED
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHEMICAL PROPERTIES
COBALT
COPPER
ELEMENTS
GEOGRAPHICAL VARIATIONS
IRON
MANGANESE
METALS
NICKEL
PACIFIC OCEAN
POLLUTION SOURCES
SAN FRANCISCO BAY
SEAS
SEDIMENTS
SURFACE WATERS
TRANSITION ELEMENTS
VARIATIONS
ZINC