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Distribution and mobility of selenium and other trace elements in shallow groundwater of the western San Joaquin Valley, California

Environmental Science and Technology

By:
,
DOI: 10.1021/es00171a013

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Abstract

Samples of shallow groundwater that underlies much of the irrigated area in the western San Joaquin Valley, CA, were analyzed for various major ions and trace elements, including selenium. Concentrations of the major ions generally were similar for groundwater collected in the two primary geologic zones - the alluvial fan and basin trough. Selenium concentrations are significantly (α = 0.05) higher in the groundwater of the alluvial-fan zone than in that of the basin-trough zone. The concentrations of oxyanion trace elements were significantly correlated (α = 0.05) with groundwater salinity, but the correlations between selenium and salinity and between molybdenum and salinity were significantly different (α = 0.05) in the alluvial-fan geologic zone compared with those in the basin-trough geologic zone. The evidence suggests that the main factors affecting selenium concentrations in the shallow groundwater are the degree of groundwater salinity and the geologic source of the alluvial soil material.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Distribution and mobility of selenium and other trace elements in shallow groundwater of the western San Joaquin Valley, California
Series title:
Environmental Science and Technology
DOI:
10.1021/es00171a013
Volume
22
Issue:
6
Year Published:
1988
Language:
English
Publisher:
ACS Publications
Description:
6 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
697
Last page:
702
Country:
United States
State:
California
County:
San Joaquin Valley