About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

Environmental Geosciences (DEG)



DOI: 10.1046/j.1526-0984.2001.84003.x

MTBE Soil Concentrations Relative to Other Gasoline Constituents at Contaminated Sites


Environmental Specialist California Regional Water Quality Control Board, Los Angeles Region, 320 West 4th Street, Suite 200, Los Angeles, CA 90013


This study describes the results of a statistical analysis on methyl tertiary butyl ether (MTBE) concentration distributions in soil and groundwater and MTBE relative to other gasoline constituents in soil based on data collected in Los Angeles, California. The MTBE soil concentration data are studied in two aspects. The first aspect involves MTBE concentration in soil as it relates to MTBE groundwater concentration and soil type at individual sites. The second involves the correlation between MTBE and other gasoline constituents (benzene, toluene, ethyl-benzene, xylenes [BTEX], and total petroleum hydrocarbons as gasoline [TPHg]) in soil at individual sites and at particular soil boring locations, respectively. The results of statistical analyses indicate that the MTBE concentration in soil correlated poorly with the underlying groundwater concentration and soil type. There was no statistically significant difference in MTBE soil concentration between types of soils. MTBE soil concentration also correlated poorly with BTEX and TPHg, whereas BTEX and TPHg in soil correlated well with one another. Despite the generally poor correlation between MTBE and other gasoline constituents at individual sites, good correlation was observed between MTBE and BTEX based on data obtained at individual soil borings. In particular, a correlation coefficient of 0.82 was observed between MTBE and BTEX at 13 of the 28 soil borings studied. Uncertainties associated with the data used for analyses are assessed to pinpoint the shortcomings of the data analysis and to enlighten future studies.


View the First Page

A text abstract of this article is not available. The first page of the PDF appears below.

You may download the first page as a PDF.

Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Protected Document: $10
Internal PDF Document: $14
Open PDF Document: $24